2015 Nanometrics Inc. All Rights Reserved.

Transcription

1 User Guide

2 2015 Nanmetrics Inc. All Rights Reserved. The infrmatin in this dcument has been carefully reviewed and is believed t be reliable. Nanmetrics Inc. reserves the right t make changes at any time withut ntice t imprve the reliability and functin f the prduct. N part f this publicatin may be reprduced, stred in a retrieval system r transmitted, in any frm r by any means, electrnic, mechanical, phtcpying, recrding, r therwise, withut the prir written permissin f Nanmetrics Inc. Nanmetrics Inc. 250 Herzberg Rad Kanata, ON K2K 2A1 Canada Tll free: (within Nrth America) Tel Fax sales_mktg@nanmetrics.ca

3 Nanmetrics Inc. Cntents 1.0 Abut the Centaur Key Features Applicable Mdels Abut Data Strage Primary Media Secndary (r Remvable) Media Data Backup Cables and Accessries Installatin Tasks Abut SD Cards Insert SD Card Remve the SD Card SD Card Full r Crrupt Chse a Deplyment Optin Stand-alne Deplyment Netwrked Deplyment Data Access Optins Use Cases: Deplyment and Data Access Perfrm the Initial Cnfiguratin Develp a Grunding Plan General Cnsideratins Cnnect and Grund the Centaur GPS Antenna Pwer 22 Revisin: 17935R /07/

4 Nanmetrics Inc. 2.7 Install the SOH sealing plug Accessing the Web Interface Direct Cnnectin t the Web Interface Netwrk Cnnectin t the Web Interface Lgging n t the Centaur Web Interface Changing the admin passwrd Changing the Calibratin Passwrd Cnfiguring Yur Centaur Dwnlading/Uplading the Cnfiguratin Install a License File General Cnfiguratin Settings Digitizer Frnt End Input Range [V] Primary Channels Secndary Channels Bandpass Filter Trigger Input Filters Trigger Detectrs Sensr Library Sensr Settings Sensr Cntrl Lines Sensr SOH Aut Mass Centring Aut Mass Centring Settings Cmmunicatins 40 Revisin: 17935R /07/

5 Nanmetrics Inc Discvery Ethernet Data Streaming NP UDP/HTTP Streaming QSCD20 Streaming Thrttle Fragmentatin Raw TCP Receiving Channel Naming Cntinuus Data Archive Events Events Data Archive Trigger/Event Sharing Data Prducts Cnfigure Ntificatins fr Declared Events State f Health (SOH) Settings Seedlink Server Pwer Timing Using the Web Interface Mnitr the Status and Health f Yur Instrument Events Device Strage Data 72 Revisin: 17935R /07/

6 Nanmetrics Inc Time Alerts Mnitr the LEDs Overall Status LED Link LED Time LED Media LED Sensr LEDs USB Eject LED Media LED Mnitr Sensr Operatin Seismmeter Mass Psitin SOH External SOH Inputs Cntrl Discvery Event Detectin and Declaratin View and Manage Events Manually Declare Events View Seismic Wavefrms in Near Real Time View Wavefrm Data Calibrate Sensr Calibratin Signal File Frmat fr the External Sensr Uplad Custm Calibratin Signal File Perfrm Maintenance Tasks Upgrade Firmware 92 Revisin: 17935R /07/

7 Nanmetrics Inc Retrieve Data frm the Internal Strage Dwnlad Lg Files Dwnlad Archive Files Dwnlad Channel Respnse Files Remvable Media Perfrm Maintenance n the Internal Strage Restart/Shut Dwn a Centaur Applicatin Prgram Interfaces (APIs) Data Availability API Web Service data dwnlad interface (FDSN-WS) Nanmetrics data retrieval API State f Health API Instrument respnse API Reference Infrmatin Technical Specificatins Sensr Inputs Sensr Cmpatibility Digitizer Perfrmance Calibratin External State-Of-Health (SOH) Inputs Recrding (Cntinuus) Recrding (Events) Data Retrieval Data Streaming Timing 117 Revisin: 17935R /07/

8 Nanmetrics Inc Cmmunicatins Lcal User Interface Cnnectrs Pwer Pwer Usage Physical Characteristics SOH channels in Steim cmpressed frmats Wi-Fi Access t the Centaur Cnnectrs and Pinuts Pwer Cnnectr Receptacle and Pinut Sensr Cnnectr and Pinut External SOH Input Pinut Making the Ethernet Cable Cnnectr Waterprf Physical Features and Dimensins Tp View f the Centaur Side View f the Centaur View f the External Cnnectrs View f Open Media Bay Free Sftware Infrmatin Apache Licence Infrmatin BSD Licence Infrmatin Cpyright Infrmatin fr NPTD and SNTP Binaries 141 Abut Us 142 Cntact Us 142 Revisin: 17935R /07/

9 Nanmetrics Inc. 1.0 Abut the Centaur The Centaur digital recrder is a prtable seismic acquisitin system that cnsists f a highreslutin 24-bit ADC, a precisin GPS clck, and remvable strage capabilities. Its ease f use simplifies high perfrmance seismic deplyments in bth remte and netwrked envirnments. 1.1 Key Features Intuitive Web interface accessible via Wi-Fi r Ethernet cnnectin Ultra-lw nise flr fr use with high perfrmance bradband seismmeters True 24-bit perfrmance available in 3 r 6 channel cnfiguratins Sample rates f up t 5000 sps t supprt gethermal and/r passive seismic Advanced bandpassed triggering External State-f-Health (SOH) input (see applicable mdels belw) that allws yu t digitize up t 3 arbitrary, external analg signals fr inputs such as temperature, barmetric pressure, and similar slw mving signals Data retrieval via a remvable SD 1 card r lcal Ethernet in MiniSEED file frmat Event peak grund mtin statistics: acceleratin, velcity, and displacement Acquisitin and data management f high precisin GPS data (BINEX) Cmprehensive real-time cmmunicatins ptins include SeedLink supprt 1 Secure Digital Revisin: 17935R /07/

10 Nanmetrics Inc. Rugged field enclsure rated fr cntinuus submersin Precisin Time Prtcl (PTP)*, which prvides netwrk-based timing t digital recrders that are placed in areas where GPS signals are weak r inaccessible. * Available if PTP is enabled in yur firmware. Cntact technical supprt fr mre infrmatin. 1.2 Applicable Mdels The Centaur User Guide and WebHelp apply t the fllwing mdels: Prduct Name Mdel Number Part Number Key Features Centaur, 3 channel SOH CTR2-3S channel differential inputs fr seismic sensrs and/r gephnes External SOH input Centaur, 6 channel SOH (pictured abve) CTR2-6S channel differential inputs fr seismic sensrs and/r gephnes External SOH input Centaur, 3 channel CTR channel differential inputs inputs fr seismic sensrs and/r gephnes Centaur, 6 channel CTR channel differential inputs fr seismic sensrs and/r gephnes All mdels listed abve are available with SeedLink licensing pre-cnfigured. Alternatively, yu can purchase a license that allws yu t access SeedLink and ther licensed features after yu acquire yur Centaur. Setup and peratinal instructins may vary by mdel. Revisin: 17935R /07/

11 Nanmetrics Inc. 1.3 Abut Data Strage Understanding hw and where Centaur stres data will help yu plan and implement effective data access fr yur deplyment Primary Media Centaur cntinuusly recrds seismic data, state-f-health (SOH) data, and cnfiguratin data in a prprietary database called the Stre. The Stre wraps when it is full and recrds ver the ldest data. The frequency with which the Stre wraps is shwn in the Internal Strage sectin f the Health Page. The Stre is lcated n an internal flash media device. Data is recrded t the Stre in Nanmetrics Prtcl (NP) frmat, but seismic data can be streamed in SEEDLink and NP frmats fr netwrked deplyments, and/r archived t remvable media in MiniSEED frmat. In additin, selected SOH channels are available in Steim cmpressed frmats. Fr netwrked deplyments using cntinuus streaming, the Stre is used t back fill any data lst during transmissin dwnstream. Regardless f whether yu deply Centaur as a netwrked r standalne device, the internal strage acts as yur primary media. Yu can retrieve data frm internal strage n the Maintenance page Secndary (r Remvable) Media The mst effective backup fr yur data is t use an SD card as yur secndary (remvable) media, and cnfigure cntinuus archiving. Use an SD card that is frmatted as FAT32 r ext4. The SD card serves tw main functins: 1. Backup fr the primary media fr netwrked r standalne deplyments. 2. Cnvenient data retrieval fr standalne deplyments. When yu enable cntinuus archiving, the Centaur cntinuusly recrds data in MiniSEED frmat t the SD card. Yu can als cnfigure Centaur t archive events and SOH data t the SD card. When the SD card is full, the Centaur cntinues recrding data t its internal strage media, but stps writing data t yur SD card. Any cnfigured streamers are unaffected when the SD card is Revisin: 17935R /07/

12 Nanmetrics Inc. full. Yu can mnitr the amunt f space that data archiving cnsumes n yur SD card frm the Remvable Media sectin f the Maintenance page. Fr standalne deplyments, swapping ut remvable media is a mre cnvenient way f harvesting data than dwnlading data frm internal strage using a laptp and Ethernet cable. Data retrieval via SD card swap r internal strage dwnlad is referred t as file transfer Data Backup The Centaur reserves a small backup Stre n the remvable media (SD card), if ne is present, r in RAM if n SD card is available. The backup Stre is used in the rare event that internal strage fails. The backup Stre des nt grw ver time, nr des the backup Stre verwrite yur data. Fr netwrked deplyments using cntinuus streaming, the backup Stre can backfill a limited amunt f data lst during transmissin. As mentined abve, the mst effective way t back up yur data is t archive data cntinuusly t yur SD card. 1.4 Cables and Accessries Nanmetrics ffers ptinal equipment that can add cnvenience t the installatin and use f yur Centaur. The table belw describes a number f these ptins. Name Part Number Descriptin Cable - Ethernet CAB0013 An Ethernet cable with RJ-45 cnnectrs n bth ends. Available in lengths frm 1 m t 100 m. Cable Pwer M M M An unshielded 22 AWG pwer cable. Available in lengths f 3 m, 5 m, 6 m, 8 m, and 10 m M M Revisin: 17935R /07/

13 Nanmetrics Inc. Name Part Number Descriptin Cable - Centaur External SOH M Flexible cable that cnnects t Centaur mdels with Part Numbers and The cable prvides three inputs fr equipment (± 5 V range) with slw mving signals. External SOH sealing plug CON1904 External SOH sealing plug (used t prtect the External SOH cnnectr when nt in use). Shipped with Centaur. Ethernet cable sealing plug CON0284 RJ-45 sealing plug (used t make the Ethernet cable cnnectr waterprf). Shipped with Centaur. GPS antenna cable LMR- 400 lw lss LMR-400 very lw lss RF caxial cable. Available in lengths up t 80 m. GPS antenna cable RG- 223 lw lss RG-223 lw lss RF caxial cable. Available in lengths up t 25 m. GPS bullet antenna A 3.3 V thread-munt GPS bullet antenna with a TNC cnnectr. GPS patch antenna A 3.3 V GPS patch antenna with a 5 m cable. Shipped with Centaur. Pwer supply Pwer supply with mains t 24 VDC. FOR INDOOR USE ONLY. *SD Card xxGB Secure Digital Media Card, Industrial Multi-level cell (MLC), pre-frmatted with FAT32. Revisin: 17935R /07/

14 Nanmetrics Inc. Name Part Number Descriptin USB Wi-Fi Accessry Kit A kit cntaining a USB Wi-Fi dngle, O-ring, and Media Bay dme cver t cnnect Centaur ver Wi-Fi *See Abut SD cards. Revisin: 17935R /07/

15 Nanmetrics Inc. 2.0 Installatin Tasks At a high level, we recmmend that yu perfrm the fllwing tasks t install a Centaur: 1. Insert an SD card (ptinal). 2. Chse a deplyment ptin. 3. Perfrm the initial cnfiguratin. 4. Develp a grunding plan. 5. Cnnect and grund the device. Befre leaving the installatin site (pst-installatin) Mnitr the LEDs and trublesht any errrs that ccur. 2.1 Abut SD Cards Nanmetrics tests with industrial-quality SD cards that have prven t be very reliable. SD cards are available in 16 GB, 32 GB, and 64 GB capacities. If yu prefer t supply yur wn SD cards, please cntact technical supprt fr infrmatin abut SD cards that have been qualified by Nanmetrics Insert SD Card The Centaur can be cnfigured t archive MiniSEED data, event data, and SOH data t an SD 1 card frmatted as FAT32 r ext4. The event data can be archived in multiple industry-standard frmats. Befre data archiving can be enabled, an SD card (frmatted as FAT32 r ext4) shuld be inserted int the media slt n the Centaur. When prperly inserted and ready fr use, the Media LED will blink green and the Media Eject LED behind the media dr will be slid red fr 10 minutes (it will then turn ff t save pwer) Remve the SD Card T safely remve the SD card, push and release the Media Eject buttn in the media bay. Wait fr the Media Eject LED t turn slid green, which indicates that it is safe t remve the card. 1 Secure Digital Revisin: 17935R /07/

16 Nanmetrics Inc. T prevent data lss r crruptin, the data cartridge and SD card shuld never be physically remved while the SD status LED is blinking in any clur SD Card Full r Crrupt The status f the SD card in use is indicated by the Media LED n the instrument, and n these Web Interface pages: Health > Strage sectin Maintenance > Remvable Media sectin If yur SD card is full r crrupt, the instrument cntinues recrding data t its Stre, but stps writing data t yur SD card. Any cnfigured streamers are unaffected when the SD card is full r crrupt. SD Card Trubleshting The mst effective way t retrieve data directly frm the Centaur's internal strage 1 is by dwnlading it frm the Maintenance page t yur cmputer. T ensure sufficient space n yur SD card, yu can remve lder time series data frm yur cntinuus archive. The safest methd fr transferring data frm the SD card is t cnnect it t yur cmputer. Alternatively, yu can use secure FTP and the client applicatin f yur chice t manage yur cntinuus archive files. Individual archive files can als be dwnladed frm the Dwnlad archive files link frm the Maintenance page. If yur SD card is crrupt r damaged, yu can try t repair it frm the Maintenance page. Yu may als re-frmat the card. Repair and re-frmatting f SD cards is perfrmed in the Remvable Media sectin f the Maintenance page. 2.2 Chse a Deplyment Optin The Centaur can be deplyed as a stand-alne device t recrd cntinuus data n remvable media fr extended perids f time r as a netwrk device that allws data dwnlads, data 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

17 Nanmetrics Inc. streaming, and remte cnfiguratin changes while als recrding data t the strage media. Regardless f whether data is streamed and/r archived t secndary, remvable media (SD card), the Centaur cntinuusly recrds data t internal strage. Fr mre infrmatin, see Abut Data Strage Stand-alne Deplyment In a stand-alne deplyment, a Centaur is deplyed as a d-it-all device. The recrded time series data is written in NP frmat t the internal strage n a Linux ext4 frmatted CF card. A technician must visit the Centaur in the field t retrieve the data, which is dne by replacing the remvable media with empty media r by dwnlading data frm the internal strage Netwrked Deplyment In a netwrked deplyment, a Centaur is deplyed as part f a netwrk and the recrded time series data is written in NP frmat t the internal strage and then streamed ver the netwrk t a data acquisitin server, such as Apll Server. As an additinal backup, the Centaur can be cnfigured t cntinuusly write the time series data in MiniSEED frmat t a FAT32 r ext4 frmatted SD card. The field technician des nt typically visit the Centaur in the field after it has been installed, but instead uses a Web brwser t make any necessary cnfiguratin changes and receive the streamed data Data Access Optins Typically, the data access methd yu chse is influenced by the remteness and duratin f the deplyment. The Centaur can be deplyed as a: Netwrk device that allws data dwnlads, cntinuus streaming t a data acquisitin server (such as Apll Server), and remte cnfiguratin changes. Stand-alne device t recrd cntinuus data n remvable media fr extended perids f time (accessed later via file transfer r retrieving the SD card when a technician is visiting the site). Revisin: 17935R /07/

18 Nanmetrics Inc. Regardless f whether data is streamed and/r archived t a secndary remvable media (SD card), the Centaur cntinuusly recrds data t internal strage. Fr mre infrmatin, see Abut Data Strage. Cntinuus Streaming Cntinuus data streaming is usually the preferred data access methd fr lnger term deplyments. Cntinuus data streaming is enabled thrugh the use f a cellular mdem, Lw Earth Orbit (LEO) mdem, r VSAT cmmunicatin system, such as Nanmetrics' Libra II VSAT System. File Transfer File transfer is mre cmmn fr shrt-t-medium term deplyments when streaming is nt pssible r practical. Yu can remve the SD card frm the media bay and swap in a new SD card withut causing any data gaps between the recrds n the tw cards. Alternatively, yu can cnnect t the Centaur via Ethernet t dwnlad the data stred in its internal flash memry. Data Frmats Each data access methd prvides specific data recrding frmats. Fr a list f available data frmats yu can use fr file transfer frm SD card r internal strage, see Recrding (Cntinuus) and Recrding (Events) in the specificatins. T view the data frmats available fr data streaming, see Data Streaming in the specificatins. Revisin: 17935R /07/

19 Nanmetrics Inc Use Cases: Deplyment and Data Access The table belw illustrates the typical use cases fr deplyment and data access. Deplyment timeframe Cntinuus data streaming required? Data access ptin Shrt-term (Temprary) Yes Streaming, using: Cellular r Lw Earth Orbit (LEO) mdem/* VSAT N File transfer: Remvable media (SD card) Internal strage via Ethernet (retrieve unit and bring t lab) Medium-term (Semipermanent) Yes N Streaming, using: Cellular r LEO mdem/vsat File transfer: Remvable media (SD card) Lng-term (Permanent) ** Yes Streaming, using: Cellular r LEO mdem/vsat Wired internet * VSAT is nt cmmnly used fr temprary installatins, but there are temprary statins that use VSAT. ** Streaming is nrmally required fr permanent statins because file transfer is ften impractical. Revisin: 17935R /07/

20 Nanmetrics Inc Perfrm the Initial Cnfiguratin Each Centaur cmes factry cnfigured with several default cnfiguratin settings. The factry cnfiguratin addresses the mst cmmn use cases fr the Centaur and means that mst devices will require minimal pre-installatin cnfiguratin. T check the cnfiguratin, yu must cnnect the GPS cable, Ethernet cable, and pwer cable and wait fr the device t pwer up. Once started, yu need t access the Web interface f the Centaur t verify r change the cnfiguratin. Yu shuld ensure the fllwing settings are cnfigured t yur needs prir t deplying the device in the field: Sample rate Sensr type Detectr settings Ethernet settings Streamer settings (Netwrked deplyment) 2.3 Develp a Grunding Plan The pwer cnsumptin f the Centaur varies with factrs such as the GPS receiver duty cycle and the activity f the Ethernet. Typical cnsumptin is listed in the Pwer Usage sectin f the technical specificatins. The mst apprpriate grunding plan will depend n yur applicatin and the installatin envirnment. Fllwing is sme general infrmatin yu can take int accunt when planning grunding fr a Centaur installatin General Cnsideratins Pwer The Centaur pwer cnnectr has 3 pins t allw the Centaur t cnfrm t the site grunding system. Yu can cnnect the pwer return pin and grund, but cmbining grunding and pwer return in the same cnductr limits the site grunding ptins. The recmmended practice is t establish a single grund pint fr the statin and grund everything t that pint, which minimizes the chances f grund lps and signal nise created by the pwer system. Revisin: 17935R /07/

21 Nanmetrics Inc. Peripheral pwer The Centaur prvides primary pwer t attached peripheral devices via the Sensr cnnectrs. This pwer is switched t allw devices t be cntrlled by the user thrugh the Centaur. The Centaur mnitrs fr ver-current cnditins and will autmatically switch ff pwer t a peripheral if excessive current r a shrt is detected. The vltage prvided t the Centaur is passed n t the attached peripherals. The current demand f each attached peripheral and the cnsequent vltage drp thrugh the Centaur and peripheral cables shuld be taken int cnsideratin when designing the pwer system t ensure that sufficient vltage is supplied t each peripheral. 2.4 Cnnect and Grund the Centaur Yu will need the fllwing items t set up and cnfigure yur Centaur: Pwer supply and cable* Ethernet cable* GPS antenna and cable External SOH cable* if yu want t recrd analg state-f-health (SOH) signals frm ther sensrs Seismmeter cable Cmputer, tablet, r smartphne with ne f the fllwing brwsers installed: Chrme, Firefx r Safari *Nt included. See Cables and Accessries. The External SOH cable is nly applicable t Centaur mdels that have an external SOH input. Cnnect the cables and grund the Centaur 1. Cnnect the fllwing cables t the Centaur: Seismmeter cable Ethernet cable (if used) External SOH cable (if used) Pwer cable (apply pwer last) Yu can make the Ethernet cable cnnectr n the Centaur waterprf by installing a sealing plug (shipped with the Centaur). 2. Grund the Centaur: Revisin: 17935R /07/

22 Nanmetrics Inc. i. Yur Centaur ships with the grunding wire attached. If yu must attach a new grunding wire, strip ne end f the grunding wire and crimp the grunding lug arund the grunding wire. ii. Attach the grunding lug t the grunding hle using the M4x5 screw and the M4 washer. See the Tp View f the Centaur fr the grunding hle lcatins. iii. Cnnect the ther end f the grunding wire t a grunding pint at the site. 3. Apply pwer. When yu cnnect the pwer cable t the pwer surce, the Centaur will pwer up immediately. It will take apprximately 4 t 5 minutes fr the device t cmpletely start up. If the device fails t pwer up, the pwer supply vltage might be belw the cnfigured Pwer n threshld. Next step: Lg int the Web Interface. 2.5 GPS Antenna The GPS antenna is n digital grund which has a single pint cnnectin t analg grund and analg grund is cnnected t chassis grund. The GPS antenna des nt have t be islated frm grund. We recmmend that it be independently earthed when using a lng cable; therwise, it can rely n the Centaur fr its safety grund t earth. In cnfiguratins that have lng GPS cables and lightning prtectin, an verall system design apprach must be taken which balances the grunding requirements with the prtectin requirements. This apprach requires an understanding f the Centaur grunding, the sensr grunding, pwer supply grunding, and lcal site grunding. 2.6 Pwer The Centaur pwer cnnectr has 3 pins t allw the instrument t cnfrm t the site grunding system. Yu can cnnect the pwer return pin and grund but cmbining grunding and pwer return in the same cnductr limits the site grunding ptins. The recmmended practice is t establish a single grund pint fr the statin and grund everything t that pint, which minimizes the chances f grund lps and signal nise created by the pwer system. 2.7 Install the SOH sealing plug If yu are nt using the SOH input n the Centaur, it is recmmended that yu install the External SOH sealing plug (part number CON1904) that ships with the Centaur. The sealing plug will prtect Revisin: 17935R /07/

23 Nanmetrics Inc. the Centaur frm dust and misture. 1. With a 19 mm scket, lsen the jam nut frm the SOH cnnectr n the Centaur. When remving the jam nut, be careful nt t push r knck the cnnectr int the chassis. If the cnnectr drps int the chassis, yu will have t pen the Centaur cver t retrieve the cnnectr. 2. Place the ring frm the sealing plug ver the cnnectr. 3. Secure the jam nut ver the ring sealing ring. 4. Clse the sealing plug cap ver the cnnectr. Revisin: 17935R /07/

24 Nanmetrics Inc. 3.0 Accessing the Web Interface The Web Interface is where yu can assess the status and health f yur instrument, cnfigure yur sensr, view the wavefrm, and perfrm maintenance tasks, such as backing up yur cnfiguratin settings and upgrading yur firmware. Yu can create a direct cnnectin t yur Centaur using a link-lcal IP address r yu can create a netwrk cnnectin t the device. 3.1 Direct Cnnectin t the Web Interface Fr a direct cnnectin between yur instrument and a cmputer (with Chrme, Firefx r Safari installed), use the link-lcal IP address. Fr Centaur, use the link-lcal IP address f (3 channel mdel) r (6 channel mdel) with a subnet mask f Yu can access the Centaur user interface ver Wi-Fi using the ptinal USB Wi-Fi Accessry Kit (Nanmetrics part number 17630). 3.2 Netwrk Cnnectin t the Web Interface 1. Cnnect the Centaur t a DHCP-enabled netwrk and allw it t autmatically assign an IP address t the device. 2. Use Apll Discvery, a Nanmetrics applicatin, t search the LAN fr Nanmetrics instruments and applicatins. Cntact Nanmetrics Supprt at t get Apll Discvery. Apll Discvery must be run n the same subnet as the devices yu want t find. 3. Cnfirm that the serial number displayed n the Web interface matches yur Centaur. If it des nt, then yu are cnnected t a different Centaur in yur netwrk. After cnnecting t the Centaur, either thrugh the link-lcal address r via a DHCPenabled netwrk, yu can cnfigure a static IP address fr yur deplyment. Revisin: 17935R /07/

25 Nanmetrics Inc. 3.3 Lgging n t the Centaur Web Interface When yu first cnnect t the Web Interface, yu are in view nly mde. This mde allws yu t view infrmatin abut yur instrument such as the status and health f yur instrument, the cnnected sensrs, events and wavefrms. T edit the cnfiguratin, dwnlad firmware, and perfrm maintenance tasks, yu need t lg n t yur Web Interface. 1. Frm the upper right crner f the Web Interface, click Lg On. The Lg On dialg bx will be displayed. 2. Enter the default admin user accunt (user name: admin, passwrd: admin). 3. Click the OK buttn. On the Web Interface, admin will display in place f Lg On. We recmmend that yu change yur passwrd after yu have lgged n fr the first time Changing the admin passwrd 1. Frm the upper right crner f the Web Interface, click n admin and select Change passwrd frm the list. The change passwrd dialg bx will be displayed. 2. Enter yur User name, yur Old passwrd, and yur New passwrd. 3. Cnfirm yur new passwrd by entering it in the Cnfirm new passwrd field. 4. Click the OK buttn. The dialg will clse and yur passwrd will be set t the new passwrd Changing the Calibratin Passwrd The calibratin user accunt and passwrd allws yu t uplad a custm calibratin file t the instrument (see Uplad Custm Calibratin Signal File). T d this yu will need t lg in t the instrument using an SSH 1 -based file transfer prtcl such as SFTP 2 r SCP Lg int the instrument using the terminal applicatin f yur chice and start an SSH sessin. Use the IP address f the instrument as the hst name and the default prt number f Secure Shell 2 SSH File Transfer Prtcl 3 Secure Cpy Revisin: 17935R /07/

26 Nanmetrics Inc. 2. Lg in t the instrument as rt (username: rt, passwrd: dlphin18). 3. Run the fllwing cmmand: passwd calibratin 4. Enter yur new passwrd. Paswrds must be a minimum f 5 characters and a maximum f 8, and include a cmbinatin f upper and lwer case letters and numbers. 5. Reenter yur new passwrd. 6. Clse the SSH sessin. Revisin: 17935R /07/

27 Nanmetrics Inc. 4.0 Cnfiguring Yur Centaur Yu can change the cnfiguratin settings fr the Centaur by lgging n using the admin user accunt, pening the Cnfiguratin menu, and selecting Cnfiguratin. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the admin passwrd. Cnfiguratin menu icn Reset, Apply, Cmmit Reset Discard any unapplied changes and relad the current cnfiguratin settings. Apply Implement changes befre they are cmmitted. The device will perate with the new settings but will discard them if it is restarted. Cmmit Permanently save changes. The device will use these new cnfiguratin settings each time it restarts until new settings are cmmitted. 4.1 Dwnlading/Uplading the Cnfiguratin Yu can dwnlad the current cnfiguratin f the Centaur and save it as a backup in case yu ever want t restre the settings f the Centaur t the current state r uplad it t a different Centaur. The dwnladed cnfiguratin file is in RDF Turtle frmat. If yu d uplad a cnfiguratin file, keep in mind that yu might have t use Apll Discvery t find the new IP address assigned t the device if the Ethernet mde changes frm Static IP r Link- Lcal t DHCP. Apll Discvery is a Nanmetrics cmmand-line applicatin that searches the LAN and returns the mdel number, serial number, IP address, and ther infrmatin abut the Nanmetrics devices and applicatins that it finds.yu can dwnlad Apll Discvery frm ur supprt Web site: Install a License File A license is required t use sme Centaur features, such as cntinuusly streaming data in SeedLink frmat. If yur Centaur isn't pre-cnfigured with a license, cntact sales_mkt@nanmetrics.ca t purchase a license file. Revisin: 17935R /07/

28 Nanmetrics Inc. The license file is upladed frm the Abut page n the Web Interface. Frm the upper right crner f the Web Interface, click the Cnfiguratin menu icn. 1. Click Abut. 2. Click the Uplad link. 3. Click Chse File, brwse t the license file lcatin, and click Uplad. 4. Click OK. 4.3 General Cnfiguratin Settings Retrieval mark The date and time the last data was retrieved by Apll Prject fr a Field Archive prject. Apll Prject autmatically stres this date in the Centaur after it retrieves data fr a Field Archive prject and uses it as the starting pint fr a future data dwnlad. The Retrieval Mark bx is blank if Apll Prject has nt been used t dwnlad data frm a Centaur fr a Field Archive prject. Yu can delete the date if yu want Apll Prject t dwnlad all f the data frm the start f the prject the next time yu run a Field Archive prject. Yu can als change the date if yu nly want data dwnladed frm a specific pint in time. This setting is nly used by Apll Prject fr Field Archive prjects. If yu d nt use Apll Prject r Field Archive prjects, yu can ignre this setting. Fr mre infrmatin n data retrieval and Field Archive prjects, see the Apll Prject User Guide. System lg verbsity The level f detail f the system lg: Inf All errrs, warnings, and minimal system status infrmatin Verbse All errr, warnings, and mre detailed system status infrmatin Debug - All errrs, warnings, and extensive system status infrmatin Yu shuld nly select Verbse r Debug as the lgging level if yu were instructed t d s by Nanmetrics Technical Supprt because it generates a large number f lg messages that can slw dwn the system and shrten the amunt f time in the lg files. This setting nly applies t Centaur mdels that have an external SOH input. See applicable mdels. Revisin: 17935R /07/

29 Nanmetrics Inc. 4.4 Digitizer The Centaur Digitizer has three r six time series data channels that are cnstantly digitizing data. The data frm each f these channels is recrded and written t the internal strage. Yu can capture data at tw cncurrent sample rates by enabling secndary utput, and setting different sample rates n yur primary and secndary channels. Fr example, yu may wish t cntinually stream yur data at a lwer sample rate n primary channels and archive data t an SD card at a higher sample rate n secndary channels. Yu can als cnfigure general settings fr the Centaur Digitizer such as frames per packet n primary and secndary channels, as well as frnt end, input filter, and detectr cnfiguratin settings. The settings fr Digitizer A are fr Sensr A, channels 1 t 3. The settings fr Digitizer B are fr Sensr B, channels 4 t 6. Enable cntinuus data prducts Select this ptin t enable the streaming f cntinuus data prducts, such as QSCD20 data (see als QSCD20 Streaming), and t summarize triggered events Frnt End Input Range [V] The input vltage ranges represent the differential between the sensr psitive and negative signal inputs in vlts peak-t-peak. The maximum input range is 40 vlts peak-t-peak. This represents the case f a differential input signal that at ne peak has +10 V n the psitive input and 10 V n the negative input (20 V peak). At the ther peak, the differential input is 20 V fr a peak-tpeak input range f 40 V. The input range t Digitizer sensitivity mappings are prvided in the Digitizer Perfrmance sectin f the specificatins. If yu want t accurately measure full-scale sensr activity, the input range f the digital recrder must be greater than the maximum utput level f the sensr. Hwever, if the sensr has a very large dynamic range and the input range is set t a large value (t capture full-scale mvement), accuracy will be lst when measuring very weak seismic signals. If yu want t accurately measure very weak seismic signals, the input range f the sensr must be set t a small enugh value t accurately digitize weak signals. If strng seismic events ccur that exceed the cnfigured range, these signals will be clipped. Increased sensitivity (lwer input ranges) als tend t increase verall data vlume. Revisin: 17935R /07/

30 Nanmetrics Inc Primary Channels Yu can cnfigure yur sampling rate, enable DC remval, and set yur frames per packet fr yur primary data channels. If yu are using a six-channel Centaur, yu will need t cnfigure yur primary channel settings fr bth Digitizer A and Digitizer B. Output type Output type allws yu t apply a Linear Phase filter t the digital signal prcessing and recrding n primary channels, which is the default selectin, r t disable data recrding altgether. Primary sample rate [Hz] The number f samples per secnd taken frm the cntinuus analg sensr signal by the Centaur t make a discrete-time signal. The default is 100 Hz (100 samples per secnd). Primary frames per packet The number f standard Steim data frames per packet fr transmissin and strage f the primary time series data. Smaller packets reduce the streaming latency, but will greatly increase the requirements fr streaming thrughput and data strage Secndary Channels If yu want t capture data at tw cncurrent sample rates, yu must enable the Secndary utput type. Yu can als cnfigure ther settings fr yur secndary channels t reflect yur data retrieval needs. If yu are using a six-channel Centaur, yu might want t cnfigure secndary channel settings fr bth Digitizer A and Digitizer B. Secndary utput type By default, the Secndary utput type is Disabled. T enable it, select Linear Phase. Revisin: 17935R /07/

31 Nanmetrics Inc. Secndary Sample rate [Hz] The number f samples per secnd taken frm the cntinuus analg sensr signal by the Centaur t make a discrete-time signal. The default is 100 Hz (100 samples per secnd). Secndary frames per packet The number f standard Steim data frames per packet fr transmissin and strage f the primary time series data. Smaller packets reduce the streaming latency, but will greatly increase the requirements fr streaming thrughput and data strage Bandpass Filter High pass rder The rder f the high pass filter applied t utput data. The sum f the high and lw pass rders must nt exceed 5. High pass frequency [Hz] The 3 db crner frequency f the high pass filter applied t utput data when the high pass rder is nn-zer. The rati f this crner frequency t the sample rate must be between and Lw pass rder The rder f the lw pass filter applied t utput data. The sum f the high and lw pass rders must nt exceed 5. Lw pass frequency [Hz] The 3 db crner frequency f the lw pass filter applied t utput data when the lw pass rder is nn-zer. The rati f this crner frequency t the sample rate must be between and Revisin: 17935R /07/

32 Nanmetrics Inc Trigger Input Filters The trigger input filter is a cmmn band pass filter applied t the channel data prir t being prcessed by the trigger 1 detectrs 2. High pass rder The rder f the high pass trigger filter. High pass frequency [Hz] The 3 db crner frequency, in hertz, f the high pass trigger filter. Lw pass rder The rder f the lw pass trigger filter. Lw pass frequency [Hz] The 3 db crner frequency, in hertz, f the lw pass trigger filter. 1 A message generated by the device when the STA/LTA rati fr a channel ges abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. 2 Algrithms applied t channels and used t declare seismic signals f interest Revisin: 17935R /07/

33 Nanmetrics Inc Trigger Detectrs The Centaur uses detectrs cmbined with a vting system t declare an event. A detectr is an algrithm that is applied t a channel and is based n either a cnfigured threshld value r a cnfigured STA 1 /LTA 2 rati. As sn as the channel detectr detects that the threshld value r STA/LTA rati has been exceeded, it generates a trigger 3 fr that channel. When the Centaur sees this trigger, it cunts hw many vtes 4 are assigned t the channel that generated that trigger: If the number f vtes are equal t r higher than the cnfigured number f required vtes, an event is declared with the date and time frm the trigger. If nt enugh vtes were received frm the trigger, then the Centaur waits fr additinal triggers fr a cnfigured perid f time t allw fr transmissin latency. If nt enugh vtes are received within the cnfigured perid f time, the triggers are discarded and n event is declared. If enugh vtes are received, an event is declared and written t the internal strage and psted n the Events page. Event declaratin can happen lcally using nly the channels f the Centaur r it can happen acrss a netwrk between multiple devices if yu enable the ptin t share triggers acrss a netwrk. Type n Select the type f detectr fr the channel. 1 Shrt Term Average 2 Lng Term Average 3 A message generated by the device when the STA/LTA rati fr a channel ges abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. 4 The number f vtes assigned t each channel that it can cast twards getting an event declared. The higher the number f vtes, the greater the impact that the channel has n event declaratin. T ensure prper event declaratin, yu shuld give zer vtes t a channel that yu d nt want t affect the event declaratin at all and a lwer number f vtes t channels at nisy statins. Revisin: 17935R /07/

34 Nanmetrics Inc. Vtes n The number f vtes assigned t each channel that it can cast twards getting an event declared. The higher the number f vtes, the greater the impact that the channel has n event declaratin. T ensure prper event declaratin, yu shuld give zer vtes t a channel that yu d nt want t affect the event declaratin at all and a lwer number f vtes t channels at nisy statins. Trigger threshld n [cunts] The value that must be exceeded fr the channel detectr t generate a trigger fr that channel. Yu nly have t cnfigure this setting if yu selected Threshld as the detectr type. Threshld hld ff n [s] The amunt f time after a threshld has been exceeded that the channel detectr will wait befre it generates a trigger fr that channel. This setting can be used t ensure that multiple triggers are nt generated if a threshld is exceeded several times in a very shrt perid f time. Multiple triggers culd result in the declaratin f multiple events when really it is nly ne event. Yu nly have t cnfigure this setting if yu selected Threshld as the detectr type. STA time cnstant n [s] The shrt term average time cnstant in secnds The time cnstant τ is related t the cutff frequency f by τ = 1/(2πf ). c c Chse a value lnger than a few perids f a typical expected seismic signal f interest, shrter than expected duratins f events f interest, and nt s shrt that excessive false triggers are generated by nn-seismic nise spikes near the site. Yu nly have t cnfigure this setting if yu selected STA/LTA rati as the detectr type. Revisin: 17935R /07/

35 Nanmetrics Inc. LTA time cnstant n [s] The lng term average time cnstant in secnds The time cnstant τ is related t the cutff frequency f by τ = 1/(2πf ). c c Chse a value lng enugh t encmpass at least several cycles f typical nn-seismic, irregular nise fr the site. Yu nly have t cnfigure this setting if yu selected STA/LTA rati as the detectr type. Trigger n rati n The STA/LTA rati abve which the assciated channel is triggered. Chse a value lw enugh t be sensitive t events f interest but high enugh t minimize false triggers. Yu nly have t cnfigure this setting if yu selected STA/LTA rati as the detectr type. Trigger ff rati n The STA/LTA rati belw which the assciated channel trigger ends. Latch LTA n If yu select this ptin, the LTA is held at the value when the channel triggered and is nt updated while the channel is triggered. If yu d nt select this ptin, the LTA cntinues t be calculated and updated while the channel is triggered. In bth cases, the trigger terminates either when the trigger ff rati is achieved r when the Maximum duratin has expired. Yu nly have t cnfigure this setting if yu selected STA/LTA rati as the detectr type. Maximum duratin n [s] The maximum duratin f a trigger in secnds. Revisin: 17935R /07/

36 Nanmetrics Inc. After this time perid has expired, the trigger is ended even if the Trigger ff rati has nt been achieved. 4.5 Sensr Library The Centaur ships with default sensr cnfiguratins that yu can select as the cnfiguratin fr Sensr A and Sensr B (6 channel mdel nly). Each sensr cnfiguratin cntains the mde, pwer, vltage, sensitivity, cntrl line, calibratin, and SOH settings fr a sensr. Yu cannt edit the settings f any f the default sensr cnfiguratins but yu can click Add n the main Sensr Library page and create yur wn editable custm sensr cnfiguratin r yu can click Cpy at the bttm f any default sensr cnfiguratin page t make a cpy f it and then edit it Sensr Settings Sensr name The name f the sensr cnfiguratin. SP/LP mde The default perating mde f the sensr. XYZ/UVW mde The default rientatin f the sensr elements. UVW is the rientatin fr a symmetric triaxial seismmeter. Needs pwer Select this ptin if the sensr needs pwer (active sensrs). D nt select it fr passive sensrs that d nt require pwer. Nanmetrics smart sensr Select this ptin if the sensr is a Nanmetrics smart sensr (fr example, Trillium Brehle, Trillium Psthle, r Trillium Cmpact). Revisin: 17935R /07/

37 Nanmetrics Inc. Sensitivity units Refer t yur sensr manual fr the apprpriate value. Sensitivity value Refer t yur sensr manual fr this value. Channel n rientatin Select the rientatin f the each sensr channel Sensr Cntrl Lines Refer t yur sensr manual fr the apprpriate sensr cntrl line settings and values fr yur sensr. Specific cntrl line settings are required t make sme f the sensr cntrls available n the Sensrs page. 4.6 Sensr SOH Each sensr prt n the Centaur has three mass psitin SOH inputs and, if enabled, the vltage levels f these inputs are recrded at the cnfigured Internal SOH reprt interval and displayed n the Sensrs page. The Sensr mass psitin SOH values are als included in the Envirnment SOH grup, which yu can dwnlad frm the Maintenance page. Yu can edit the Sensr mass psitin SOH settings fr any custm sensr cnfiguratins that yu create. SOH enabled n Select this check bx t allw the Centaur t recrd the vltage level f the mass psitin SOH input and generate an SOH channel fr this input. SOH label n Type a label fr the mass psitin SOH input. The name yu enter here will appear n the Sensrs page and in the CSV file yu dwnlad frm the Maintenance page (Envirnment grup f the SOH grups). Revisin: 17935R /07/

38 Nanmetrics Inc. SOH mnitr n Select this check bx if yu want the status f this mass psitin SOH input t impact the verall status f the device. This means that if a warning r errr cnditin is reprted fr this mass psitin SOH input, it will be indicated in red n the Health page, Sensrs page, and in the status bar at the tp f each page. It will als be indicated by the Sensr LED n the Centaur. SOH high threshld An errr cnditin is reprted fr the mass psitin SOH input when the SOH input vltage rises abve the SOH high threshld value. This errr cnditin is indicated in red n the Health page, Sensrs page, and in the status bar at the tp f each page. The Sensr LED n the Centaur blinks red when this errr cnditin ccurs. An warning cnditin is reprted fr the mass psitin SOH input when the SOH input vltage rises abve the SOH lw threshld value and stays belw the SOH high threshld value. This warning cnditin is indicated n the Health page, Sensrs page, in the status bar at the tp f each page. The Sensr LED n the Centaur blinks yellw when this warning cnditin ccurs. SOH lw threshld N errr r warning cnditin is detected fr the mass psitin SOH input when the SOH input vltage is belw the SOH lw threshld. 4.7 Aut Mass Centring Yu can cnfigure the Aut Mass Centring ptins t initiate autmatic mass centring when sensr mass psitins reach ff-centre threshlds. Yu can set threshlds fr delayed r immediate recentring (yellw and red threshlds respectively) and set the number f retries and retry intervals t achieve centred masses. Yu must have a cntrl line cnfigured fr Mass Centre and have at least ne f the fllwing threshlds enabled: Aut Centre n Yellw The Centaur will initiate mass centring when any axis has been abve the Yellw Threshld fr mre than the Yellw Hldff Time. If all axes drp belw the Yellw threshld during hldff time, then the hldff time is cancelled. Revisin: 17935R /07/

39 Nanmetrics Inc. Aut Centre n Red The Centaur will initiate mass centring 1 minute after any axis exceeds the Red Threshld. Yu can cnfigure the number f retries, as well as the cnfigured retry interval. Retries will be attempted until all axes are belw the yellw threshld r until the number f retries per Aut Centre have been executed Aut Mass Centring Settings Once cnfigured, the Cntrl sectin n the Sensr page will indicate that autmatic mass centring is enabled. Red Threshld [V] The minimum vltage level used t indicate that the mass psitin is ut f range. Mass centring is initiated ne minute after this level is crssed fr any sensing element. The threshld range is frm negative t psitive, fr example 1 indicates a threshld range f 1 t +1. Enter a number that is equal t r higher than and greater than the yellw threshld (if used). If yu use bth the red and the yellw threshlds, ensure that yu set the yellw threshld as the lwer mass psitin limit and the red threshld as the higher mass psitin limit (red >= yellw). Aut-Centre n Red Select this ptin if yu want the Centaur t initiate mass centring when the Red Threshld is crssed. By default, this ptin is nt selected. Yellw Threshld [V] The minimum vltage level used t indicate that the mass psitin is marginal. Mass centring is initiated after the Yellw Hldff Time has expired. The threshld range is frm negative t psitive: fr example, 1 indicates a threshld range f 1 t +1. Enter a number that is equal t r higher than and lwer than the red threshld (if used). Revisin: 17935R /07/

40 Nanmetrics Inc. Aut-Centre n Yellw Select this ptin if yu want the Centaur t initiate mass centring when the Yellw Hldff Time expires. By default, this ptin is nt selected. Yellw Hldff Time [h] The number f hurs the Centaur waits when any mass psitin vltage is higher than the yellw threshld but lwer than the red threshld befre initiating mass centring. Enter a number between 0.1 and 72. Retries per Aut-Centre The maximum number f re-attempts the Centaur makes t centre the masses. Enter an integer between 0 and 20. Retry Interval [min] The number f minutes the Centaur waits befre trying t autmatically centre the masses again. Enter an integer between 1 and Cmmunicatins Yu can cnfigure a Centaur fr netwrk access via an IP cnnectin ver an Ethernet cnnectin Discvery Enable discvery Select this check bx t allw the Centaur t peridically send ut small multicast identificatin messages t ther Nanmetrics devices and applicatins n the netwrk. IP address A valid multicast IP address. Revisin: 17935R /07/

41 Nanmetrics Inc. Prt number The UDP prt number used by the Centaur fr discvery bradcasts Ethernet Ethernet mde The methd the Centaur uses t acquire an IP address fr cmmunicatins ver the LAN. By default, each Centaur ships in DHCP mde s it can autmatically btain an IP address in yur netwrk. If needed, yu can als use the fllwing Link-Lcal address: (3 channel) r (6 channel) If yu change this setting t anther Ethernet mde (Static IP r Link-Lcal) and then change it back t DHCP, yu can use Apll Discvery t find the new IP address assigned t the device. Yu will need this new IP address t be able t cmmit the change yu made t the Ethernet mde setting because the previus IP address will n lnger wrk. Apll Discvery is a Nanmetrics cmmand-line applicatin that searches the LAN and returns the mdel number, serial number, IP address, and ther infrmatin abut the Nanmetrics devices and applicatins that it finds. Ethernet static IP address The IP address assigned t the Centaur fr the LAN. Cnfigure this setting if the Ethernet mde is set t Static IP. Ethernet static subnet mask The subnet mask fr the Ethernet Static IP Address. Cnfigure this setting if the Ethernet mde is set t Static IP. Static default gateway The default gateway address fr the static IP address. Revisin: 17935R /07/

42 Nanmetrics Inc. 4.9 Data Streaming Yu can cnfigure the Centaur t stream 1 time-series data, SOH data, triggers, alerts, and raw data t ne r mre data acquisitin servers, such as Apll Server. The data is streamed in the NP frmat using a User Datagram Prtcl (UDP) scket r Hypertext Transfer Prtcl (HTTP). NP UDP/HTTP Streaming QSCD20 Streaming Thrttle Fragmentatin NP UDP/HTTP Streaming Name The name f the streamer. Enable Select this ptin t enable the streaming f data. Stream primary time series Select this ptin t stream primary time series data. Stream secndary time series Select this ptin if yu have enabled secndary utput. Stream envirnmental SOH Select this ptin t stream envirnmental SOH data. Envirnmental SOH fr the Centaur includes the fllwing data: 1 The transfer f packets f data at a steady high-speed rate frm the device t dwnstream devices and applicatins. Revisin: 17935R /07/

43 Nanmetrics Inc. Vltages Temperature Sensr SOH External SOH Timing infrmatin Stream system SOH Select this ptin t stream system SOH data t a dwnstream netwrk management r mnitring tl, such as Antares Netwrk Management. Antares Netwrk Management is a netwrk management and diagnstic tl that allws yu t assess the verall status f the netwrk at a glance and t drill dwn int netwrk issues in a wide range f areas including pwer, data availability, timing, latency, cnfiguratin, and firmware versins. Antares Netwrk Management uses SOH data, lg files, and cnfiguratin infrmatin available frm the varius assets in the netwrk as well as data derived by mnitring data availability, latency, and errr crrectin wrklad t prvide yu with this picture f netwrk perfrmance. System SOH fr the Centaur includes the fllwing data: Internal strage statistics Data acquisitin statistics Stream triggers/events Select this ptin t stream triggers and events. Fr trigger 1 settings, see als Trigger Detectrs and Trigger Input Filters. Fr event 2 settings, see Events. Stream alerts Select this ptin t stream alerts generated by the Centaur fr events such as start-ups, shut dwns, and majr errrs. 1 A message generated by the device when the STA/LTA rati fr a channel ges abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. 2 Seismic activity that is detected and declared by the instrument using a vting system and threshld values r STA/LTA trigger algrithms. Revisin: 17935R /07/

44 Nanmetrics Inc. Alert messages include a time stamp and a brief descriptin. These messages are als displayed n the Health page. Stream raw data Select this ptin t stream raw data that came frm an external surce. The raw data is inserted int an NP packet and streamed in the NP frmat. Channel list After yu have selected the type f data yu want the Centaur t stream, yu have the ptin t use a filter t specify exactly which channels the Centaur streams. The filter is a cmma-separated list f the SCNL (Statin, Channel, Netwrk, and Lcatin) names f the channels yu want streamed. The netwrk, statin, lcatin, and channel cdes used in the SCNL list are defined in the Channel Naming settings and in the lcatin and channel cde settings f the raw TCP receivers. Yu can use an asterisk (*) t represent ne r mre characters in a channel name and an exclamatin pint (!) t exclude a netwrk, statin, lcatin, r channel. The exclamatin pint always has t be placed befre the SCNL element that shuld be excluded. The frmat fr specifying SCNL elements in a filter is NN.SSSSS.LL.CCC, where NN is the netwrk cde, SSSSS is the statin cde, LL is the lcatin cde, and CCC is the channel cde. The S, C, and N elements must be represented in the filter and each element must be separated by a dt (.). The L (Lcatin) element is ptinal. Examples: a. Data is streamed fr all f the channels in the XX netwrk XX.*.*.* b. Data is streamed fr all f the Z channels in the XX netwrk XX.*.*.*Z c. Data is streamed fr the specified channel XX.STN01.LO.HHZ d. Data is nt streamed fr any f the channels in the XX netwrk!xx.*.*.* e. Data is streamed fr all f the channels in the XX netwrk and all f the channels frm STN01 in the YY netwrk XX.*.*.*,YY.STN01.*.* f. All SOH data is streamed fr the XX netwrk (if all SOH channels are called SOH) XX.*.*.SOH If yu d nt want t filter the data, type an asterisk (*) int the bx. A single asterisk means that all available data will be streamed. Revisin: 17935R /07/

45 Nanmetrics Inc. Destinatin A valid unicast IP address f the streaming destinatin in dtted decimal frmat. -OR- A valid multicast 1 IP address. Prt number The prt number used by the Centaur t stream data in the NP frmat. If yu are streaming t Apll Server, ensure that the Apll Server UDP receiver is cnfigured t listen t this prt number. ReTx strategy Defines the manner in which requests t retransmit data are priritized and prcessed. First-Cme, First-Served ReTx requests are prcessed in the rder received. Oldest Data First, with Recent Data Threshld ReTx requests are prcessed in chrnlgical rder based n the data time (ldest first) except fr requests fr data newer than the cnfigured ReTx Recent Data Threshld, which are given highest pririty. ReTx recent data threshld [min] The time in which recent requests shuld be prcessed befre the ldest requests are prcessed. Yu nly have t cnfigure this setting if yu selected Oldest Data First, with Recent Data Threshld as the ReTx Strategy. 1 The first ctet f a valid multicast IP address must be between 224 and 240, inclusive. Each f the last three ctets can be any psitive integer frm 0 t 255. Revisin: 17935R /07/

46 Nanmetrics Inc. Multicast TTL (NP UDP streaming nly) If the streaming destinatin address is multicast 1, yu can increase the Time-T-Live (TTL 2 ) f the packets by specifying the number f netwrks (ruters) that the packet must crss t reach the destinatin. Fr example, if the packets have t crss five netwrks t reach the destinatin, yu shuld set the Multicast TTL t 5. All f the ruters must supprt the Time-T-Live feature. In sme cases, this feature might be disabled fr security reasns (Denial-f-Service attack) QSCD20 Streaming A QSCD20 3 data stream sends QSCD20 encded packets t destinatin sftware capable f cnsuming QSCD20 data. The data is prduced using the primary sample rate(s) f the digital recrder(s), and this sample rate shuld be at least 100 sps fr quality data. Data is streamed in ne secnd packets with each packet timestamp cntaining the time f the last sample cnsidered fr that secnd f data. The timestamp is UTC 4 aligned. QSCD20 is a regin-specific streaming frmat. If yur system requires QSCD20, cntact custmer supprt fr mre infrmatin. Enable Select this ptin t enable the streaming f QSCD20 data. UDP surce prt The prt number n the streaming device used t stream QSCD20 data. The UDP surce prt is cnfigurable t facilitate flexibility when passing packets thrugh firewalls. 1 The first ctet f a valid multicast IP address must be between 224 and 240, inclusive. Each f the last three ctets can be any psitive integer frm 0 t Time-T-Live 3 Quick Seismic Characteristic Data (QSCD20 ) frm 20 sps data. QSCD20 is a regin-specific streaming frmat. If yur system requires QSCD20, cntact custmer supprt fr mre infrmatin. 4 Crdinated Universal Time Revisin: 17935R /07/

47 Nanmetrics Inc. QSCD20 destinatin 1-5 A valid unicast IP address, including the prt number, f the data stream destinatin in dtted decimal frmat. The destinatin must be sftware capable f cnsuming QSCD20 data. Up t 5 destinatins can be identified Thrttle If yu have a lw-thrughput link, the thrttle cnfiguratin settings allw yu t cnfigure the maximum data utput f the streamer. Enable thrttle Select this ptin t set the maximum data thrughput f the NP streamer. Maximum thrughput [bps] The maximum thrughput in bits per secnd Fragmentatin This feature supprts data paths with cmpnents that blck packets larger than a particular threshld. Fr instance, if yu are using a ruter that des nt allw IP fragmentatin, the fragmentatin cnfiguratin settings allw yu t cnfigure the maximum packet size. Enable fragmenting Select this ptin t set the maximum allwable packet size. If enabled, packets larger than the cnfigured threshld will be brken int smaller packets. Fragment size [B] The maximum packet size in bytes. Include CRC Select this ptin if yu want a cyclic redundancy check perfrmed n each fragment t verify that the data is nt crrupted. Revisin: 17935R /07/

48 Nanmetrics Inc Raw TCP Receiving Yu can cnfigure the Centaur t acquire raw data frm a TCP server using a TCP scket. Fr example, yu can cnfigure the Centaur t receive BINEX 1 data frm a Trimble NetR9 GNSS Reference Receiver. Yu can create and cnfigure raw data TCP receivers t acquire raw data. Once the raw data has been acquired, yu can cnfigure a streamer t stream the data t a data acquisitin server. Befre the raw data is streamed, it is inserted int an NP packet s that it can be streamed in the NP frmat. Name The name f the raw data TCP receiver. Enable Select this ptin t enable the raw data TCP receiver t receive data. Server IP address The unicast IP address f the TCP server. Prt number The number f the prt used by the TCP server t stream data. The raw data TCP receiver acts as a TCP client and cnnects t this prt and then the external device streams data t the Centaur. Fr example, yu cnfigure this prt number in the I/O Cnfiguratin settings f a Trimble NetR9. TCP scket timeut [s] The maximum amunt f time in secnds that the mdem will wait fr data frm the TCP scket befre discnnecting frm the scket. After the mdem has discnnected frm the scket, it will recnnect and wait fr a respnse again. 1 BINEX is a binary exchange frmat fr GPS and GNSS data. Fr mre infrmatin n BINEX, see Revisin: 17935R /07/

49 Nanmetrics Inc. Raw data type Select the frmat f the raw data frm the list. The nly available frmat is BINEX. Make sure that the TCP server (fr example, a Trimble NetR9) is cnfigured t stream data t the Centaur in the BINEX frmat. Channel index A number frm 2001 t 2099 used t identify the raw data channel. Each raw data TCP receiver shuld have a unique channel index number. Yu nly need t change this number if yu are enabling mre than ne raw data TCP receiver n a single Centaur Raw packets per NP packet The number f packets the Centaur waits fr befre it creates an NP packet. Lcatin and channel cde A three character alphanumeric cde fr the channel name. -OR- A tw character alphanumeric cde fr the lcatin and a three character alphanumeric cde fr the channel name, separated by a dt. Example: L0.RAW These cdes are used fr filtering the data that is streamed t a dwnstream device and shuld be unique fr each raw data TCP receiver. Fr mre infrmatin n filtering, see the descriptin f the Channel list setting f the NP UDP/HTTP streamer. The statin and netwrk cdes are defined by the Channel Naming settings Channel Naming The channel names are used by the Centaur fr tw different purpses: Revisin: 17935R /07/

50 Nanmetrics Inc. Data Retrieval The channel names are used in the file headings and default file names fr all types f retrieved data. The names act as labels t help yu identify the data. Fr mre infrmatin, see Retrieve Data frm the Internal Strage. Filtered Streaming When yu cnfigure the Centaur t stream data, yu have the ptin t define an SCNL-based filter t limit what channels are streamed. The Centaur refers t the channel names when it perfrms the filtering. Centaur retains nly the currently cnfigured channel name. Histrical naming infrmatin is nt preserved. When yu make a query t retrieve data r t view a wavefrm frm Centaur, make sure t use the channel name that is currently cnfigured, nt the channel name that was cnfigured when the data was recrded. Netwrk cde A tw character alphanumeric cde (the alpha characters must be uppercase) that represents the netwrk that the Centaur belngs t. Statin cde A five character alphanumeric cde that represents the statin where the Centaur is lcated. Lcatin cde (n-n) A tw character alphanumeric cde (the alpha characters must be uppercase) that represents the time series lcatin f the Centaur. This setting is ptinal. Primary channel n cde A three character alphanumeric cde (the alpha characters must be uppercase) that represents each f the time series data channels. Secndary channel n cde A three character alphanumeric cde (the alpha characters must be uppercase) that represents each f the secndary data channels. Revisin: 17935R /07/

51 Nanmetrics Inc. SOH cde A tw character alphanumeric cde fr the lcatin and a three character alphanumeric cde fr the channel that represents the SOH fr the Centaur. The tw cdes have t be separated by a dt (.) Cntinuus Data Archive The Centaur Cntinuus Data Archive feature cntinuusly archives MiniSEED data and SOH data (ptinal) t a remvable SD card. Befre yu enable this feature, make sure that yu have inserted an SD card (frmatted as FAT32 r ext4) int the SD card slt behind the media bay dr f the Centaur. In additin t streaming data frm the Centaur t a netwrk applicatin r device and archiving data t a remvable SD card, yu can als retrieve time series and SOH data directly frm the Centaur's internal strage 1 by dwnlading it frm the Maintenance page t yur cmputer. Enable cntinuus data archive Select this check bx t allw the Centaur t cntinuusly write MiniSEED data files t the SD card. Each file cntains multiple 512-byte MiniSEED recrds f wavefrm data fr all live channels and is stred in a flder named fr the day it was recrded. The lcatin f this flder is YYYY/MM/DD. The frmat f the name f each MiniSEED data file is as fllws: NE.STN.LO_YYYYMMDD_ HHMMSS.miniseed The netwrk, statin, and lcatin names are defined in the Channel Naming cnfiguratin settings. Archive perid [min] Select the amunt f data in minutes t be written t each file. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

52 Nanmetrics Inc. The number f 512-byte MiniSEED recrds cntained in each file is determined by the duratin yu select here. MiniSEED utput files Select the number f utput files t be generated: ne file per channel r ne file per statin. The per channel ptin prduces many small files, the per statin ptin prduces ne large file. Archive channel list Yu can chse t filter the data yu archive by channel. The filter is a cmma-separated list f the SCNL (Statin, Channel, Netwrk, and Lcatin) names f the channels yu want archived. The netwrk, statin, lcatin, and channel cdes used in the SCNL list are defined in the Channel Naming settings and in the lcatin and channel cde settings f the raw TCP receivers. Yu can use an asterisk (*) t represent ne r mre characters in a channel name and an exclamatin pint (!) t exclude a netwrk, statin, lcatin, r channel. The exclamatin pint always has t be placed befre the SCNL element that shuld be excluded. The frmat fr specifying SCNL elements in a filter is NN.SSSSS.LL.CCC, where NN is the netwrk cde, SSSSS is the statin cde, LL is the lcatin cde, and CCC is the channel cde. The S, C, and N elements must be represented in the filter and each element must be separated by a dt (.). The L (Lcatin) element is ptinal. Examples: a. Data is archived fr all f the channels in the XX netwrk XX.*.*.* b. Data is archived fr all f the Z channels in the XX netwrk XX.*.*.*Z c. Data is archived fr the specified channel XX.STN01.LO.HHZ d. Data is nt archived fr any f the channels in the XX netwrk!xx.*.*.* e. Data is archived fr all f the channels in the XX netwrk and all f the channels frm STN01 in the YY netwrk XX.*.*.*,YY.STN01.*.* f. All SOH data is archived fr the XX netwrk (if all SOH channels are called SOH) XX.*.*.SOH If yu d nt want t filter the data, type an asterisk (*) int the bx. A single asterisk means that all available data will be archived. Revisin: 17935R /07/

53 Nanmetrics Inc. Archive filename pattern Yu can specify a pattern fr naming the archived MiniSEED files using the fllwing parameters: ${N} is the netwrk name ${S} is the statin name ${L} is the lcatin name ${C} is the channel name ${ID} is the instrumentid ${TIME} is the start time fr the data archive in YYYYMMDD_hhmmss frmat The default pattern includes all parameters and is in the fllwing frmat: ${N}.${S}.${L}.${C}_${ID}_${TIME} Example based n the default: XX.STN01.LO.HHZ_centaur-6_0345_ _ If the MiniSEED utput files ptin is set t Per channel: ${C} is required if "Per channel" is selected If the MiniSEED utput files ptin is set t Per statin: ${S} is required ${C} must be excluded Include SOH archive Select this check bx if yu als want SOH data files archived t the SD card. The SOH data files are separate files and they are stred in a flder called sh. The lcatin f this flder is YYYY/MM/DD/sh. SOH archive frmat If yu selected the ptin t archive SOH data, select the frmat fr archiving the SOH files. Archiving SOH data in CSV frmat is time cnsuming and might impact the perfrmance f the device. Revisin: 17935R /07/

54 Nanmetrics Inc Events The Centaur uses detectrs cmbined with a vting system t declare an event. A detectr is an algrithm that is applied t a channel and is based n either a cnfigured threshld value r a cnfigured STA 1 /LTA 2 rati. As sn as the channel detectr detects that the threshld value r STA/LTA rati has been exceeded, it generates a trigger 3 fr that channel. When the Centaur sees this trigger, it cunts hw many vtes 4 are assigned t the channel that generated that trigger. If the number f vtes are equal t r higher than the cnfigured number f required vtes, an event is declared with the date and time f the trigger. If nt enugh vtes were received frm the trigger, then the Centaur waits fr additinal triggers fr a cnfigured perid f time t allw fr transmissin latency. If nt enugh vtes are received within the cnfigured perid f time, the triggers are discarded and n event is declared. If enugh vtes are received, an event is declared and written t the internal strage and psted n the Events page. Event declaratin can happen lcally using nly the channels f the Centaur r it can happen acrss a netwrk between multiple devices if yu enable the ptin t share triggers acrss a netwrk. Cincidence windw [s] The windw f time int which the trigger n times f the channels must fall in rder fr thse channels t be included in the same event. Required vtes The minimum number f vtes required fr the Centaur t declare a grup f triggers as an event. 1 Shrt Term Average 2 Lng Term Average 3 A message generated by the device when the STA/LTA rati fr a channel ges abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. 4 The number f vtes assigned t each channel that it can cast twards getting an event declared. The higher the number f vtes, the greater the impact that the channel has n event declaratin. T ensure prper event declaratin, yu shuld give zer vtes t a channel that yu d nt want t affect the event declaratin at all and a lwer number f vtes t channels at nisy statins. Revisin: 17935R /07/

55 Nanmetrics Inc. Maximum event duratin [s] The amunt f time, in secnds, the Centaur waits t see if the minimum number f required vtes is met fr event declaratin. This wait time allws fr transmissin latency and any ther delays that might ccur. The maximum event duratin time shuld always be lnger than the cincidence windw duratin. Pre-event time [s] The number f secnds f data archived befre the event declaratin time. Pst-event time [s] The number f secnds f data archived after the event declaratin time Events Data Archive The Centaur Events Data Archive feature archives event 1 data and SOH data (ptinal) t a remvable SD card. The event data can be archived in multiple industry-standard frmats. Befre yu enable this feature, make sure that yu have inserted an SD card (frmatted as FAT32 r ext4) int the SD card slt behind the media bay dr f the Centaur. In additin t archiving event data t a remvable SD card, yu can als manually declare an event n the Events page. Enable events data archive Select this check bx t allw the Centaur t write event data t the SD card. Each event data file is stred in a flder named fr the day the event was recrded. The lcatin f this flder is events/yyyy/mm/dd. 1 Seismic activity that is detected and declared by the instrument using a vting system and threshld values r STA/LTA trigger algrithms. Revisin: 17935R /07/

56 Nanmetrics Inc. The frmat f the name f each event data file is as fllws: NE.STN.LO_YYYYMMDD_ HHMMSS.frmat If the per channel ptin is selected fr the MiniSEED utput files setting, then the channel name is als added t the name f the event data file befre the YYYYMMDD_ HHMMSS. The netwrk, statin, and lcatin names are defined in the Channel Naming cnfiguratin settings. Enable MiniSEED Select this check bx t archive the event data in the MiniSEED frmat. MiniSEED utput files Select the number f utput files t be generated: ne file per channel r ne file fr all instruments. The per channel ptin prduces many small files, the per statin ptin prduces ne large file. Other frmat Select the desired file frmat frm the list t archive event data in that frmat. Archive channel list Yu can chse t filter the data yu archive by channel. The filter is a cmma-separated list f the SCNL (Statin, Channel, Netwrk, and Lcatin) names f the channels yu want archived. The netwrk, statin, lcatin, and channel cdes used in the SCNL list are defined in the Channel Naming settings and in the lcatin and channel cde settings f the raw TCP receivers. Yu can use an asterisk (*) t represent ne r mre characters in a channel name and an exclamatin pint (!) t exclude a netwrk, statin, lcatin, r channel. The exclamatin pint always has t be placed befre the SCNL element that shuld be excluded. The frmat fr specifying SCNL elements in a filter is NN.SSSSS.LL.CCC, where NN is the netwrk cde, SSSSS is the statin cde, LL is the lcatin cde, and CCC is the channel cde. The S, C, and N elements must be represented in the filter and each element must be separated by a dt (.). The L (Lcatin) element is ptinal. Revisin: 17935R /07/

57 Nanmetrics Inc. Examples: a. Data is archived fr all f the channels in the XX netwrk XX.*.*.* b. Data is archived fr all f the Z channels in the XX netwrk XX.*.*.*Z c. Data is archived fr the specified channel XX.STN01.LO.HHZ d. Data is nt archived fr any f the channels in the XX netwrk!xx.*.*.* e. Data is archived fr all f the channels in the XX netwrk and all f the channels frm STN01 in the YY netwrk XX.*.*.*,YY.STN01.*.* f. All SOH data is archived fr the XX netwrk (if all SOH channels are called SOH) XX.*.*.SOH If yu d nt want t filter the data, type an asterisk (*) int the bx. A single asterisk means that all available data will be archived. Archive filename pattern Yu can specify a pattern fr naming the archived files using the fllwing parameters: ${N} is the netwrk name ${S} is the statin name ${L} is the lcatin name ${C} is the channel name ${ID} is the instrumentid ${TIME} is the event time in YYYYMMDD_hhmmss frmat The default pattern includes all parameters and is in the fllwing frmat: ${N}.${S}.${L}.${C}_${ID}_${TIME} Example based n the default: XX.STN01.LO.HHZ_ centaur-6_0345_ _ If the MiniSEED utput files ptin is set t Per channel: ${C} is required if "Per channel" is selected If the MiniSEED utput files ptin is set t Per statin: ${S} is required ${C} must be excluded Revisin: 17935R /07/

58 Nanmetrics Inc. Include SOH archive Select this check bx if yu als want SOH data files archived t the SD card. The SOH data files are separate files and they are stred in a flder called sh. The lcatin f this flder is YYYY/MM/DD/sh. SOH archive frmat If yu selected the ptin t archive SOH data, select the frmat fr archiving the SOH files. Archiving SOH data in the CSV frmat is time cnsuming and might impact the perfrmance f the device Trigger/Event Sharing The Centaur has the ability t send and receive triggers 1 and events 2 and frm ther devices via a multicast UDP 3. The vtes 4 assciated with triggers received frm ther devices are used in the event detectin and declaratin prcess and the events received frm ther devices are displayed and dwnladable n the Events page f the lcal device. Share triggers Select this ptin t enable trigger sharing. 1 Messages generated by the instrument when the STA/LTA rati fr ne r mre channels g abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. 2 Seismic activity that is detected and declared by the instrument using a vting system and threshld values r STA/LTA trigger algrithms. 3 User Datagram Prtcl 4 The number f vtes assigned t each channel that it can cast twards getting an event declared. The higher the number f vtes, the greater the impact that the channel has n event declaratin. T ensure prper event declaratin, yu shuld give zer vtes t a channel that yu d nt want t affect the event declaratin at all and a lwer number f vtes t channels at nisy statins. Revisin: 17935R /07/

59 Nanmetrics Inc. If yu enable this ptin, event declaratin will happen bth lcally, using nly the three channels f the lcal device, and acrss all f the devices in yur netwrk. Share events Select this ptin t enable events sharing. If yu enable this ptin, yu can view and dwnlad the events received frm ther devices n the Events page f this device. Multicast grup A valid multicast 1 IP address. All devices that share triggers and/r events have t use the same multicast IP address and prt number. Prt number The prt number used by the Centaur t share triggers and/r events with ther devices (send and receive) All devices that share triggers and/r events have t use the same multicast IP address and prt number. Multicast TTL Yu can increase the Time-T-Live (TTL) f the trigger data packets by specifying the number f netwrks (ruters) that the trigger data packets must crss t reach their destinatin. Fr example, if the trigger data packets have t crss five netwrks t reach their destinatin, yu shuld set the Multicast TTL t Data Prducts Yu can cnfigure the Centaur t calculate peak grund mtin data prducts fr any cnnected and cnfigured accelermeter sensrs. When this feature is enabled, the Centaur calculates the 1 The first ctet f a valid multicast IP address must be between 224 and 240, inclusive. Each f the last three ctets can be any psitive integer frm 0 t 255. Revisin: 17935R /07/

60 Nanmetrics Inc. PGA 1, PGV 2, and PGD 3 values fr each declared event, writes the calculated values t the internal strage 4 with the event, and psts them n the Events page. The PGA reprted by the Centaur is based n measurements f the acceleratin in the tw hrizntal directins (nrth-suth and east-west). Enable events data prducts Select this check bx t allw the Centaur t calculate peak grund mtin data prducts fr each event. Yu can view the calculated PGA, PGV, and PGD values n the Events page. Surce sensr prt Select the sensr prt used t calculate the data prducts. This ptin is nly applicable t a Centaur with 6 channels (tw sensr prts). Surce data stream Select the channels used t calculate the data prducts Cnfigure Ntificatins fr Declared Events Centaur ships with three cnfiguratin template files that can be used t cnfigure the autmatic sending f ntificatins when events are declared and cmpleted. Once these files have been cnfigured, tw s are sent autmatically fr each event. The first is sent as sn as the event is declared and the secnd is sent when the event has cmpleted. The s are sent t the addresses specified in the cnfiguratin files. 1 Peak Grund Acceleratin 2 Peak Grund Velcity 3 Peak Grund Displacement 4 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

61 Nanmetrics Inc. Example subject line: NX.PVEA1 Event T18:09:19.015Z Example bdy: Event cmplete T18:09:19.015Z (titanea-master_0104) Maximum PGA E-1 NX.PVEA1 (titanea-master_0104) See the Help fr mre infrmatin n event detectin and declaratin. Yu can access the help by clicking Help in the upper-left crner f the user interface f the device. T cnfigure the autmatic sending f ntificatins 1. Use the fllwing cmmands t cpy the three cnfiguratin template files that shipped with Centaur t /etc/nanmetrics/cnfig and remve the suffix (.template) frm the cpy: cp /usr/share/nanmetrics/event- /cnf/event- .cnf.template /etc/nanmetrics/cnfig/event- .cnf cp /usr/share/nanmetrics/event- /cnf/event-declared.- cnf.template /etc/nanmetrics/cnfig/event-declared.cnf cp /usr/share/nanmetrics/event- /cnf/event-cmplete- .- cnf.template /etc/nanmetrics/cnfig/event-cmplete- .cnf The template files are called event- .cnf.template, event-declared .cnf.template, and event-cmplete- .cnf.template and they are lcated in /usr/share/nanmetrics/event- /cnf. 2. Mdify the server settings cntained in event- .cnf s that they match the utging mail settings fr yur netwrk and specify the addresses f all intended recipients. 3. Mdify the variables cntained in event-declared- .cnf t determine the cntent f the event declared ntificatin (the first that is sent). The first line f this file is the subject f the and the ther lines in the file are the bdy f the . The available variables are as fllws: event_start The time the event was declared event_num_triggers The number f triggers fr the declared event Revisin: 17935R /07/

62 Nanmetrics Inc. statinname The SCNL infrmatin fr the lcal device (the SCNL infrmatin fr a device is cnfigured in the Channel Naming settings) instrumentid The ID f the lcal device as shwn at the tp f the user interface f the device 4. Repeat step 3 fr the variables in event-cmplete- .cnf t determine the cntent f the event cmpleted ntificatin (the secnd that is sent). The fllwing variables are available fr the event cmpleted ntificatin in additin t the nes listed in step 3: event_pga The PGA f the lcal device, calculated after the pst-event time has elapsed (see Cnfiguratin -> Events) max_pga The highest PGA value frm the devices in a grup, calculated after the pst-event time has elapsed (see Cnfiguratin -> Events) max_pga_instrumentid The ID f the device with the highest PGA value max_pga_statinname The SCNL infrmatin fr the device with the highest PGA (the SCNL infrmatin fr a device is cnfigured in the Channel Naming settings) 4.14 State f Health (SOH) Settings Internal SOH reprt interval [s] The SOH reprting rate f the SOH channels (fr example, GPS, time, and strage). Default: 60 s. External SOH reprt interval [s] The SOH reprting rate f the three external SOH inputs. Default: 60 secnds. Yu can see vltage readings fr cnnected equipment n the Sensrs page, in the External SOH Inputs sectin. This setting nly applies t Centaur mdels that have an external SOH input. See applicable mdels. Frames per packet Number f frames used in each SOH packet. A smaller value means less latency, but mre verhead. Revisin: 17935R /07/

63 Nanmetrics Inc Seedlink Server Centaur can be cnfigured t act as a SeedLink server fr ther SeedLink clients. Any time series data in the internal strage 1 f the Centaur can be cnverted int the 512-byte MiniSEED frmat and retrieved by SeedLink clients frm the Centaur. Channel names are used in the file headings and default file names f the data that is retrieved frm the internal strage. These channel names act as labels and help the SeedLink clients identify the data. Befre yu enable a SeedLink server, ensure that yu have cnfigured the channel name settings. The Seedlink Server feature requires a separate licence that has t be installed n the Centaur. Please cntact Nanmetrics at sales_mkt@nanmetrics.ca fr mre infrmatin r t purchase a licence. Name The unique name f the SeedLink server. Once yu have cnfigured the SeedLink server, its name will appear in the left pane f the Cnfiguratin dialg bx, under the SeedLink server sectin f the tree. Select the name f the SeedLink server t edit its settings. Enable Select this check bx t allw Centaur t stream data frm this SeedLink server. Clear this check bx t disable this SeedLink server, stpping data acquisitin frm this surce. Prt The prt number fr the SeedLink server. The SeedLink clients have t be cnfigured t use this prt number t acquire data frm the Centaur SeedLink server. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

64 Nanmetrics Inc. Shrt term cmplete enable Select this ptin t ensure that the SeedLink server sends data in chrnlgical rder. If a packet is missed, the SeedLink server will wait up t the set threshld time (Shrt term cmplete threshld [s]) befre sending any mre packets. Once the threshld time is crssed, the SeedLink Server will send the next available packet and ignre the missed packet if it is received. Shrt term cmplete shuld be used with Hydra and Earthwrm slink2ew clients. Shrt term cmplete threshld [s] The number f secnds the SeedLink server will wait t receive a missed packet befre cntinuing t send data. This threshld value is nly used if the Shrt term cmplete enable ptin is selected. Enable ne secnd packet Prduces nly ne secnd SeedLink packets by recmpressing the data int new Data Recrds. Real-time streaming is supprted when this feature is turned n. When enabled, the SeedLink client shuld nt send in any backfill requests, such as DATA cmmand with sequence number, r TIME cmmand with begin and/r end time. Thrttle The thrttle fields display under each SeedLink server added, allwing yu t enable a thrttle and t specify the maximum thrughput bit rate: Enable thrttle is selected by default. Uncheck this field if yu d nt want t limit the netwrk transfer rate. Maximum thrughput bit rate (bps) allws yu t specify the maximum utput bit rate. The default maximum is bps. Revisin: 17935R /07/

65 Nanmetrics Inc Pwer If the pwer supply vltage is belw the cnfigured Pwer n threshld, the Centaur will nt pwer up. If this happens, yu can bypass the pwer supply threshld settings and frce the Centaur t pwer up by pressing the Frce Pwer On buttn behind the media bay dr t verride this threshld. The vltage reprted at the sensr is lwer than the vltage applied at the cnnectr due t cable and cnnectr lsses, and small vltage drps in prtective circuitry. Pwer n [mv] When the external pwer supply vltage rises abve the Pwer n threshld, the Centaur pwers up immediately. If the current external pwer supply vltage is less than a newly cmmitted Pwer n threshld, then the Centaur will nt autmatically pwer up the next time the pwer is discnnected and recnnected unless the Frce Pwer On buttn behind the media bay dr is pressed t verride these threshlds. Lw vltage shutdwn [mv] When the external pwer supply vltage falls belw the Lw vltage shutdwn threshld, the Centaur perfrms a safe shutdwn. If the current external pwer supply vltage is less than a newly applied Lw vltage shutdwn value, then the Centaur will autmatically shut dwn. If nt cmmitted, the Centaur will revert t the previus Lw vltage shutdwn value. Lw vltage discnnect [mv] When the external pwer supply vltage falls belw the Lw vltage discnnect threshld, the Centaur pwers ff immediately. Set the discnnect t a value that will prperly prtect the battery fr yur pwer supply. Revisin: 17935R /07/

66 Nanmetrics Inc Timing GPS cnfiguratin is nt applicable when PTP is enabled as the timing surce in yur firmware. Cntact technical supprt fr mre infrmatin. GPS pwer mde Select the pwer mde fr the GPS. Duty cycled The GPS is duty cycled autmatically. The GPS receiver is switched n until the fine lck is reached in the system clck and then switched ff until the estimated time uncertainty reaches a predefined limit such that the expected time errr is less than the 100 µs specificatin. This is the mst efficient setting fr pwer cnsumptin. If the GPS is cnfigured t Duty cycled the Health page will indicate a time errr if the mdelled uncertainty exceeds 100 µs. Always n The GPS is always n. This mde uses mre pwer, but prvides the mst accurate timing. If the GPS is cnfigured t Always n the Health page will indicate a time errr if the mdelled uncertainty exceeds 5 µs. Revisin: 17935R /07/

67 Nanmetrics Inc. 5.0 Using the Web Interface Once cnnected and yur device is cnfigured, yu can use the Web interface t Mnitr the status and health f yur device. View and declare events. View the status f the sensr and perfrm several cntrl functins. View wavefrm data and calibrate the sensr. Perfrm maintenance tasks. 5.1 Mnitr the Status and Health f Yur Instrument In additin t mnitring the LEDs f yur Centaur, yu can als mnitr the verall status and health f the device by viewing near real-time infrmatin n the Health page. Any prblems are indicated in red. The last time the infrmatin was updated is shwn in the lwer-right crner f the page. Each sectin n the Health page shws yu the current state f health and status f yur Centaur, gruped by cmpnent. Yu can quickly check the health f the device frm any page by lking at the status bar at the tp f the page. The first sectin f the status bar displays bth text and an icn t shw the status f the device Events Mst Recent The date, and Peak Grund Acceleratin (PGA), Peak Grund Velcity (PGV), and Peak Grund Displacement (PGD) f the mst recent event. Events Archive The status f the events archive and the SD card. The pssible statuses are as fllws: Revisin: 17935R /07/

68 Nanmetrics Inc. Archive OK The SD card is archiving event data r is ready t archive event data and the last event was archived successfully. N archive media The SD card is missing. Insert an SD card r disable the archiving f event data. Archive errr The archive is crrupted r anther errr has ccurred. Replace r refrmat the current SD card. Archive full The SD card is full and n mre event data can be archived. Replace the current SD card r delete sme f the archived events n the card. Disabled The Centaur has nt been cnfigured t archive event data t a remvable SD card. Trigger Windw The windw f time, in secnds, int which the Trigger n times f the channels must fall in rder fr thse channels t be included in the same event. Vting Threshld Each channel f the Centaur can cast a specified number f vtes twards getting an event declared and the vting threshld is the minimum number f ttal vtes required fr it t declare an event. Yu can cnfigure the number f vtes each channel casts twards getting an event declared and yu can als cnfigure the vting threshld. T ensure prper event declaratin, yu shuld give zer vtes t a channel that yu d nt want t affect the event declaratin at all and a lwer number f vtes t channels in nisy lcatins. Trigger Detectrs The trigger settings f Detectr 1/Detectr 2/Detectr 3 The pssible values are as fllws: A hyphen (-) This means that the detectr is nt enabled. A value in g This is the cnfigured threshld value. A value This is the result f the cnfigured STA/LTA rati. Fr mre infrmatin n hw t enable and cnfigure detectrs, see Trigger Detectrs. Revisin: 17935R /07/

69 Nanmetrics Inc Device System Uptime The time elapsed since the Centaur last pwered up. System Streaming Rate The cmbined streaming packet rate f all f the enabled streamers. System Enabled Streamers The ttal number f enabled streamers. System Cnfiguratin The status f the cnfiguratin settings. If yu have applied sme changes t the cnfiguratin settings but nt yet cmmitted them, this value will be red. If yu d nt cmmit these utstanding changes befre the next time the Centaur restarts, these changes will be lst. System Firmware The versin f the active firmware. If yu see testcde as the value, this means that yu have upgraded the firmware but nt yet made it permanent by cmmitting it. G t the Maintenance page and click Cmmit in the Firmware sectin t cmmit the new firmware. Envirnment Pwer Cnsumptin The amunt f pwer cnsumed by the Centaur measured in watts. The system current is shwn in the tltip. Envirnment Supply Vltage The vltage level being supplied t the Centaur by the pwer surce. Revisin: 17935R /07/

70 Nanmetrics Inc. Envirnment Temperature The internal temperature f the Centaur. The internal temperature may be several degrees higher than the ambient temperature Strage Media Card Status The status f the remvable media card. The pssible statuses are as fllws: Media OK The SD card is archiving data r is ready t archive data. Media nt present The SD card is missing. Please insert an SD card r disable the archiving f data (fr mre infrmatin, see Events Data Archive and Cntinuus Data Archive). Media errr The SD card is full, crrupted, r anther errr has ccurred. Dwnlad files frm yur SD card t free memry, Repair, refrmat, r replace the current SD card. Media Card Cntinuus Archive The status f the cntinuus data archive. The pssible statuses are as fllws: Archive OK The SD card is archiving MiniSEED data r is ready t archive MiniSEED data and the latest data was archived successfully. N archive media The SD card is missing. Insert an SD card r disable the archiving f MiniSEED data. Archive errr The archive is crrupted r anther errr has ccurred. Replace r refrmat the current SD card. Archive full The SD card is full and n mre MiniSEED data can be archived. Replace the current SD card r delete sme f the archived events n the card. Disabled The Centaur has nt been cnfigured t archive MiniSEED data files t a SD card. Media Card Cntains Events Indicates if the remvable SD card cntains events. Revisin: 17935R /07/

71 Nanmetrics Inc. Media Card Percentage Used The percentage f the ttal space used f the remvable media card. The ttal size f the remvable media card is shwn in the tltip. Internal Strage Status The status f the Centaur's internal strage 1. The pssible statuses are as fllws: Temprary lcatin Internal strage has failed and data is being written t a backup Stre. Recrding The internal strage is functining crrectly and recrding data. Reindexing The index within the internal strage is being recalculated and synchrnized with the actual data that is available. Reindexing might take a lng time depending n hw much data is in the internal strage. Data will cntinue t be generated during reindexing and will nt be lst. Yu will nt be able t perfrm any ther peratins that invlve the internal strage until it has finished reindexing. Nt ready The internal strage is nt ready fr recrding because it is being resized, created, refrmatted, r re-created. Nt enugh space There is nt enugh free space in the internal memry t accmmdate the intended full size f the internal strage. It will cntinue t perate nrmally with a reduced maximum capacity. N internal strage The internal strage is crrupt r missing. Please cntact Nanmetrics Technical Supprt if yu see this status. Internal Strage Percentage Used The percentage f the ttal space used f the internal strage. The ttal size f the internal strage is shwn in the tltip. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

72 Nanmetrics Inc. Internal Strage Wraps Every The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. This value is the estimated time, in days, that a packet stays in the internal strage. Internal Strage Recrding Rate The rate that packets are being written t the internal strage Data Sample Rate The number f samples acquired every secnd, in hertz, by the Centaur fr the primary channels. Secndary Sample Rate The number f samples acquired every secnd, in hertz, by the Centaur fr the secndary channels (if enabled). Sensitivity The verall sensitivity f the system, expressed in units f cunts per velcity unit. Status The verall status f the cnnected sensr r sensrs (6 channel mdel). Yu can view mre detailed infrmatin n the Sensrs page. Cntrl The status f the cntrls used t perate the sensrs A status f Unexpected means that ne r mre f the sensr cntrl settings d nt match the saved cnfiguratin settings fr that sensr. Fr example, Unexpected is displayed if the XYZ/UVW Mde cnfiguratin setting fr a sensr is set t XYZ but the sensr cntrl is set t UVW. Yu can view mre detailed status infrmatin fr the sensr cntrls n the Sensrs page. Revisin: 17935R /07/

73 Nanmetrics Inc Time Status The status f the internal system clck used t timestamp the data prduced by the instrument. The pssible statuses are as fllws: Initializing The instrument has just pwered up and it is attempting t synchrnize its time t the GPS receiver. Time OK The timing quality f the internal system clck is accurate t within 100 μs. N antenna The GPS receiver has detected that the antenna is nt cnnected r nt drawing a current. Antenna shrt The GPS receiver has detected a shrt in the antenna. Time errr The GPS receiver is unlcked and it is past the initializatin stage (the first 10 minutes after the instrument pwers up). -OR- If the GPS is cnfigured t Always On, the Health page will indicate a time errr if the mdelled uncertainty exceeds 5 µs, r 100 µs if the GPS is cnfigured t Autmatic. See als GPS settings. When the instrument pwers up fr the first time r after it has been shut dwn fr a lng perid f time, it will check t see if there has been a time step in UTC 1 (the intrductin f a psitive leap secnd). It takes apprximately 13 minutes fr the instrument t make this check and the Timing status will be red until this check has been cmpleted. The Internatinal Earth Rtatin and Reference Systems Service makes annuncements abut leap secnds in bulletins. 1 Crdinated Universal Time Revisin: 17935R /07/

74 Nanmetrics Inc. N PTP 1 Master The PTP master 2 is nt detected by the slave. When PTP* is enabled as the timing surce in yur firmware: The nly applicable statuses are Time OK and N PTP master. The Uncertainty, GPS satellites, and Earth lcatin fields described in sectins belw are nt applicable. *Cntact technical supprt fr mre infrmatin abut PTP. Uncertainty Based n clck drift and temperature measurements, this is an estimatin, in µs, f the timing uncertainty f the digital recrder clck. The lnger the GPS receiver is unlcked, the higher the timing uncertainty. GPS Satellites The number f satellites used by the GPS receiver fr psitin calculatin. When the instrument starts up, its GPS receiver needs t lck nt the signals frm a minimum f fur different satellites t calculate a three-dimensinal psitinal fix, cnsisting f latitude, lngitude, and altitude. If less than fur are visible, repsitin the antenna s that it has gd visibility f the pen sky. Earth Lcatin The latitude and lngitude f the instrument Alerts The Alerts sectin prvides yu with a list f recent system-related events such as start-ups, shutdwns, and cnfiguratin changes. 1 Precisin Time Prtcl: a prtcl used t synchrnize with nansecnd accuracy the real-time clcks f the devices in a netwrk. 2 The device in the PTP netwrk with the mst precise clck. All ther PTP-enabled devices in the netwrk synchrnize their clcks with the master by cnstantly exchanging timing messages with it. The TitanEA Master is a PTP master. Revisin: 17935R /07/

75 Nanmetrics Inc. 5.2 Mnitr the LEDs The Centaur has the fllwing LEDs that yu can use t mnitr the current status f the instrument and trublesht any prblems that may ccur. The LEDs are bth external and internal. External LEDs: Overall Status Link Time Media Sensr A/B Internal LEDs: Media Eject USB Eject Overall Status LED Off The Centaur is pwered ff. Slid red Initial pwer-n. Blinking yellw The Centaur is starting up and checking all f the internal systems. Blinking green The Centaur is perating prperly. Revisin: 17935R /07/

76 Nanmetrics Inc. Blinking red There is a fault r cnditin that prevents the Centaur frm perating prperly. If nne f the ther LEDs indicate an errr cnditin, check the Health page t determine the pssible cause. Pssible prblems culd include the fllwing: The GPS receiver is nt lcked r the GPS antenna is discnnected r shrted. The Data Archiving feature is enabled but the SD card is missing, full, crrupt, r culd nt be prepared fr use. Cnfiguratin changes have nt been cmmitted. The firmware status is nt kay. The status f the internal strage 1 is nt kay. The sensr input vltages r cntrl settings are nt kay. The internal strage failed and data is being written t either the SD card, if present, r the instrument's RAM, if n SD card is present. Yu will als see the Internal Strage Status listed as Temprary Lcatin n the Health page Link LED Off N Ethernet cable is cnnected. -OR- The Frce Pwer On buttn was pressed t frce the Centaur t bypass the pwer supply threshld settings and pwer up. Once the Frce Pwer On buttn is pressed, the Pwer LED will change frm slid red t blinking yellw and then t blinking red. -OR- The unit is pwered ff. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

77 Nanmetrics Inc. Slid green Link established ver the Ethernet cable. Flickering green / range Data is being transmitted r received ver the Ethernet link. Flickering green Link established ver the Ethernet cable Time LED Off The Centaur is pwered ff. Blinking yellw The GPS receiver is initializing and attempting t acquire a lck. It will attempt t acquire a lck after the Centaur pwers up. Blinking green The Centaur has synchrnized t an accurate time. Blinking red The GPS receiver is unlcked, the time uncertainty is >100 μs, and the GPS initializatin stage is past. -OR- N GPS antenna is cnnected, the GPS antenna is nt drawing a current, r the antenna has pr visibility f the pen sky. Revisin: 17935R /07/

78 Nanmetrics Inc Media LED Off Fr mre infrmatin, see Events Data Archive and Cntinuus Data Archive. Blinking yellw Checking the status f the SD card. Blinking green The SD card is archiving data/ready t archive data. Blinking red The SD card is missing, full, r crrupt r it culd nt be prepared fr use Sensr LEDs The 3 channel mdel f the Centaur has ne Sensr LED and the 6 channel mdel has tw. In additin t the Sensr LEDs, yu can als view infrmatin abut the sensrs n the Health and Sensrs pages f the user interface. Off The unit is pwered ff. Blinking yellw Blinking green All three mass psitin values are between the high and lw cnfigurable threshld values. Blinking red There is an errr cnditin that culd prevent the sensr frm perating prperly. Pssible prblems culd include the fllwing: Revisin: 17935R /07/

79 Nanmetrics Inc. At least ne mass psitin value is abve 2.5 V r belw -2.5 V. One r mre f the sensr cntrl settings d nt match the saved cnfiguratin settings fr that sensr USB Eject LED The USB prt is nt currently supprted fr the Centaur fr data archiving. Off N USB device is detected. Blinking red The USB device has been inserted and it is being prepared fr use. -OR- The buttn next t the USB device has been pushed and the device is being prepared fr safe remval. The buttns next t the SD card and the USB device have been pressed and held fr mre than 6 secnds and then released t initiate a safe shutdwn f the Centaur. Bth LEDs will blink red while the Centaur is shutting dwn and then g ff. Slid red The USB device is ready t use r is being used and it is nt safe t remve it. It will turn frm slid red t ff after 10 minutes t save pwer. Slid green The buttn next t the USB device has been pushed, the device has been prepared fr safe remval, and it is safe t remve the USB device. If the USB device is nt remved within 10 minutes after it has been prepared fr safe remval and the LED turns slid green, the device will be prepared fr use again and the LED will turn t blinking red. Revisin: 17935R /07/

80 Nanmetrics Inc Media LED Off Fr mre infrmatin, see Events Data Archive and Cntinuus Data Archive. Blinking yellw Checking the status f the SD card. Blinking green The SD card is archiving data/ready t archive data. Blinking red The SD card is missing, full, r crrupt r it culd nt be prepared fr use. 5.3 Mnitr Sensr Operatin Use the Sensr page t view the mass psitins fr each cnnected seismmeter, as well as vltage levels fr external SOH inputs (if yur Centaur has an external SOH input). See Applicable Mdels. Additinally, yu can manage sme aspects f seismmeter peratin, and access the Web interface f a Nanmetrics smart sensr n the Sensrs page Seismmeter Mass Psitin SOH Each sensr prt n the Centaur has three mass psitin seismmeter SOH inputs and, if enabled, the vltage levels f these inputs are recrded at the cnfigured SOH reprt interval and displayed n the Sensrs page. The seismmeter mass psitin SOH values are als included in the Envirnment SOH grup, which yu can dwnlad frm the Maintenance page. Yu can edit the Sensr SOH settings fr any custm sensr cnfiguratins that yu create and view the Sensr SOH settings fr any f the default sensr cnfiguratins. Revisin: 17935R /07/

81 Nanmetrics Inc External SOH Inputs If yur Centaur has an External SOH input and yu have cnnected sensrs t recrd analg SOH signals (± 5V), yu can see the external SOH values displayed n the Sensrs page. The SOH input prvides three external SOH channels that recrd vltage levels at the cnfigured External SOH reprt interval. External SOH values are included in the Envirnment SOH grup, which yu can dwnlad frm the Maintenance page. This nly applies t Centaur mdels that have an external SOH input. See applicable mdels Cntrl Mass centring is a key functin in the cntrl sectin f the Sensr page. Yu can als temprarily tggle the axis mde frm UVX t XYZ fr debugging purpses. Yu can cntrl sme aspects f sensr peratin using the cntrls n the Sensrs page. Specific cntrl line settings are required t make sme f the cntrls available and nt all cntrls are available fr all sensr types. If ne r mre f the sensr cntrl settings d nt match the saved cnfiguratin settings fr that sensr, the status f Unexpected will be displayed in the Data sectin f the Health page. Fr example, Unexpected is displayed if the XYZ/UVW Mde cnfiguratin setting fr the sensr is set t XYZ but the sensr cntrl is set t UVW. Sensr mde (XYZ r UVW) is cnfigured in Cnfiguratin > Sensr Library See Calibrate Sensr fr infrmatin n hw t calibrate a sensr. Displays the mdel and serial number f the attached sensr. Accessing the Web interface f a Nanmetrics smart sensr thrugh the Centaur can cause lw levels f nise n the utput signals f the sensr. When serial cmmunicatin with the sensr is enabled, the Web Interface generates a status errr due t the generated nise. Disable serial cmmunicatins when yu have cmpleted debugging activities. Revisin: 17935R /07/

82 Nanmetrics Inc. Axis The rientatin f the sensr elements. Cntrl line settings: XYZ/UVW On=UVW XYZ/UVW Off=XYZ UVW is the rientatin fr a symmetric triaxial seismmeter. Perid The perating mde f the sensr. The lwer crner f the seismmeter respnse can be changed frm the nrmal lng-perid (LP) perating mde t a shrt-perid (SP) respnse. Changing t SP mde is useful when levelling the seismmeter, allwing yu t see the mass psitins quickly respnd t changes in tilt, r nce the seismmeter is levelled, t allw the mass psitins t quickly settle. Be sure t leave the seismmeter in lng-perid (LP) mde when recrding seismic signals. Cntrl line setting: SP/LP On=SP -OR- -OR- SP/LP Off=LP This ptin may nt be available fr all sensrs. Revisin: 17935R /07/

83 Nanmetrics Inc. Mass centre Initiates autmatic mtrized re-levelling f the internal seismmeter, and the re-centring f the masses. Centres the masses. Cntrl line setting: Mass Centre This ptin may nt be available fr all sensrs. Mass lck Lcks r unlcks all masses. Cntrl line settings (ne cntrl line fr each setting): Mass Lck -OR- Mass Unlck This ptin may nt be available fr all sensrs. Autmatic mass centring Indicates whether autmatic mass centring is enabled r disabled. Autmatic mass centring is disabled by default. Yu enable autmatic mass centring in Cnfiguratin settings. Fr mre infrmatin, see Aut Mass Centring. The Autmatic mass centring field is visible nly if yu have cnfigured a cntrl line fr mass centring. Revisin: 17935R /07/

84 Nanmetrics Inc Discvery After yu cnnect a Nanmetrics smart sensr (such as a Trillium Cmpact r a Trillium Psthle) t the Centaur and select it in the Sensr Library fr Sensr A r B (6 channel mdel nly), click the Discver buttn n the Sensrs page t detect it and lad the smart sensr details. After it has been detected, yu can access the Web interface f the Nanmetrics smart sensr by changing the Serial setting t A r B and clicking the hyperlink in the name f the sensr. Accessing the Web interface f a Nanmetrics smart sensr thrugh the Centaur can cause lw levels f nise n the utput signals f the sensr. When serial cmmunicatin with the sensr is enabled, the Web Interface generates f status errr due t the generated nise. Disable serial cmmunicatins when yu have cmpleted debugging activities. 5.4 Event Detectin and Declaratin The channels f the Centaur cntinuusly digitize time series data, which is recrded t the internal strage 1. Yu can cnfigure the Centaur t stream this time series data t anther device r applicatin and/r archive it n a remvable media card. Yu can als dwnlad it frm the device using the ptins n the Maintenance page. If yu want the Centaur t detect and declare seismic events in additin t cntinuusly recrding time series data, yu have t enable a detectr fr ne r mre f the time series channels and assign a number f vtes t all channels with enabled detectrs. The Centaur uses the detectrs cmbined with a vting system t declare an event. A detectr is an algrithm that is applied t a channel and is based n either a cnfigured threshld value r a cnfigured STA/LTA rati. As sn as the channel detectr detects that the threshld value r STA/LTA rati has been exceeded, it generates a trigger fr that channel. When the Centaur sees this trigger, it cunts hw many vtes are assigned t the channel that generated that trigger. If the number f vtes are equal t r higher than the cnfigured number f required vtes, an event is declared with the date and time f the trigger. If nt enugh vtes were received frm the trigger, then the Centaur waits fr additinal triggers fr a cnfigured perid f time t allw fr transmissin latency. If nt enugh vtes are received within the cnfigured perid f time, the triggers are discarded and n event is declared. If enugh vtes are received, an event is declared and written t the internal strage 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

85 Nanmetrics Inc. and psted n the Events page. If cnfigured, the time series data fr the event is als written t a remvable media card. Event declaratin can happen lcally using nly the channels f the Centaur r it can happen acrss a netwrk between multiple devices if yu enable the ptin t share triggers acrss a netwrk. Yu can view infrmatin abut the declared events n the Events page, dwnlad them lcally frm devices in the netwrk, and, if required, yu can als manually declare an event. The infrmatin n this page is updated each time yu access the page r each time yu manually declare an event. Yu can check the Last updated infrmatin in the lwer-right crner t see the age f the data View and Manage Events The Events page shws yu the date and time f each event 1 recrded in the internal strage 2 as well as the peak grund mtin data prducts, cause and surce, and the number f triggers 3 fr that event. It als shws whether the event has been archived t the remvable media r nt. If the Centaur has been cnfigured t autmatically archive events t an SD card, then all declared events will be n the SD card as well as in the internal strage. Dwnlad Archived Events Yu can dwnlad lcally t yur cmputer any event that has been archived t the remvable SD card. The available frmats depend n the cnfiguratin fr the events data archive. T dwnlad archived events, select the checkbxes next t the events yu want t dwnlad and then click Dwnlad 1 Seismic activity that is detected and declared by the instrument using a vting system and threshld values r STA/LTA trigger algrithms. 2 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. 3 Messages generated by the instrument when the STA/LTA rati fr ne r mre channels g abve the cnfigured trigger n rati r when the cnfigured threshld value is exceeded. Each trigger is assigned a number f vtes (n the surce device) that it casts twards getting an event declared. Revisin: 17935R /07/

86 Nanmetrics Inc. The archived events are dwnladed lcally in a cmpressed file (.zip) that cntains all available frmats. Yu cannt dwnlad events that are nly stred in the internal strage n the Events page but yu can retrieve data frm the internal strage n the Maintenance page. Dwnlad Events Using Secure FTP Yu can lg int the instrument with read-nly access and dwnlad MiniSEED event data frm the SD card using a secure FTP 1 cnnectin and the FTP client applicatin f yur chice. Once yu have lgged n t the instrument, yu can lcate MiniSEED event data in the fllwing lcatin n the SD card: /var/archive/events The instrument must have an SD card installed and the instrument must be cnfigured t archive data (see Events Data Archive and Cntinuus Data Archive) t use this feature. Yu have t lg n t the instrument using the calibratin user accunt (user name: calibratin, passwrd: calibrate) t dwnlad events via secure FTP. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the Calibratin Passwrd. Delete Archived Events Yu cannt delete events that are nly stred in the internal strage but yu can delete any events that have been archived t the remvable SD card. Yu have tw ptins fr deleting events: Yu can select the checkbxes next t the events yu want t delete and then click Delete. -OR- Yu can click the Delete all event archives buttn t delete all existing cntent n the SD card. 1 File Transfer Prtcl Revisin: 17935R /07/

87 Nanmetrics Inc. Yu have t be lgged n using the admin user accunt t delete all f the event archives n the SD card and yu have t cnfirm that yu want t d it since this actin cannt be undne. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the admin passwrd Manually Declare Events If yu knw that an event 1 ccurred but fr sme reasn it was nt declared as an event (fr example, nt enugh vtes were cast t get an event declared r the vting threshld was set t high), yu can manually declare an event n the Events page. The manual declaratin is based n the histrical data stred in the internal strage 2. Yu have t lg n using the admin user accunt befre yu can declare an event. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the admin passwrd. The event will appear in the list f Events n the Events page as sn as yu click Declare Event. Yu will be able t dwnlad it and view the peak grund mtin prducts fr the event as sn as it has been successfully retrieved frm the internal strage. The Surce clumn will help yu distinguish autmatically declared events frm any that have been declared manually (user). 5.5 View Seismic Wavefrms in Near Real Time Yu can see the grund vibratins recrded by the Centaur in near real time by viewing the seismic wavefrms n the Wavefrm page. One hrizntal signal line is displayed fr each channel f the Centaur n a data plt with a time scale. If the sensr needs t be calibrated, yu can als perfrm a sensr calibratin n this page using a calibratin signal file frmat. 1 Seismic activity that is detected and declared by the instrument using a vting system and threshld values r STA/LTA trigger algrithms. 2 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

88 Nanmetrics Inc View Wavefrm Data The Wavefrm page shws a hrizntal signal line, r trace, in near-real time fr each channel f the Centaur. The trace represents the amplitude f the signal received by the Centaur after DC ffset 1 crrectin has been perfrmed. The traces all begin and end at the same time and the starting time is shwn in the lwer-left crner f the data plt with time increasing t the right. The current time scale is shwn at the bttm f the data plts between the current time and the plus and minus buttns. Yu can click the plus and minus buttns t increase r decrease the time scale. Click the pause buttn at the bttm f the data plt r click any f the traces t pause the traces. The clur f the traces changes t blue when paused. Click the rewind r fast frward buttn r click and drag the cursr n a trace t mve back and frward in time. The amunt f data buffered will limit hw far back in time yu can g. The SCNL 2 and sample rate is shwn in the upper-left crner f each trace plt as well as the mean, RMS, minimum, and maximum. Yu can use the mean value t cnfigure the Channel ffset setting Calibrate Sensr The Centaur ships with the fllwing calibratin signal files: A 1 Hz sine wave with a 5 V peak fr 30 s A step functin that is 0 V fr 15 s and then 5 V fr 15 s A pseud randm binary (PRB) file T use ne f these signal files fr calibratin 1. Lg n using the admin user accunt. See Lgging n t the Web Interface. 2. Select a sensr frm the Sensr list n the Wavefrm page (6 channel mdel nly). 1 The deviatin frm zer f the signal average ver time. A signal shuld have a middle pint at zer t allw maximum dynamic range. 2 Statin Channel Netwrk Lcatin Revisin: 17935R /07/

89 Nanmetrics Inc. 3. Select a file frm the Signal File list. 4. Select the Attenuatin frm the list. The Attenuatin is the value used t attenuate the calibratin signal Yu can use attenuatin t select the range when lwer amplitude signals are desired. Fr example, a mre accurate 5 mv signal is generated by selecting attenuatin f 1000 and amplitude 5 V, rather than attenuatin f 1 and amplitude f V. 5. Select Create event if yu want the Centaur t create an event during the calibratin. The duratin f this generated calibratin event is based n the duratin f the signal file plus the pre- and pst-event times. This event will be available fr dwnlad n the Events page when the calibratin has finished. 6. Click the Start calibratin buttn. When calibratin starts, a small signal ffset might be generated fr between 1-2 s, and then the first sample f the calibratin signal file is driven at the tp f a secnd. That secnd is at least 5 s after the Start calibratin buttn has been clicked. If yu wuld prefer t create yur wn calibratin signal file, yu can d s using a raw (headerless) file frmat and then yu can use an SSH 1 -based file transfer prtcl t uplad it t yur Centaur s that it will be available fr selectin in the signal file list n the Wavefrm page Calibratin Signal File Frmat fr the External Sensr Use the file frmat infrmatin belw t create a custm calibratin signal file in an uncmpressed raw sample frmat and when yu are dne uplad it t yur Centaur. Yu can use any sftware that can exprt raw (headerless) audi files, such as Audacity, t create the custm calibratin signal file. If yu d nt want t manually create a calibratin signal file, we have prvided yu with a Ruby script that yu can use t create a raw signal file. Yu can dwnlad it by typing the fllwing path int the lcatin bar f yur brwser: externalsensr_calibratin_signal.rb 1 Secure Shell Revisin: 17935R /07/

90 Nanmetrics Inc. When yu run the script using Ruby, yu have t specify the signal type (sine r step), the duratin in secnds, the amplitude in V, and a name fr the utput file. Once the file has been created, uplad it t yur Centaur and then select it frm the Signal File list n the Wavefrm page t perfrm a calibratin. File Frmat Infrmatin Frmat Header Encding Uncmpressed raw Nne Signed 16-bit integer Byte rder Little-endian 1 Channels Start ffset Sample rate Output signal 0 bytes Hz The maximum utput signal (+5 V) crrespnds t the maximum value (32 767) Value (2's cmplement) Output signal (0x8000) +5V 0 (0x0000) 0 V (0x7FFF) -5 V Uplad Custm Calibratin Signal File After yu have created a custm calibratin signal file, yu can uplad it t yur Centaur using an SSH 2 -based file transfer prtcl such as SFTP 3 r SCP 4. 1 In this rder, the bytes f a multibyte value are rdered frm least significant t mst significant. 2 Secure Shell 3 SSH File Transfer Prtcl 4 Secure Cpy Revisin: 17935R /07/

91 Nanmetrics Inc. File Transfer Prtcl Infrmatin Prtcl Hst name SFTP r SCP IP address f yur Centaur Prt number 22 User name Passwrd Uplad lcatin calibratin calibrate /usr/share/nanmetrics/calibratin Yu will have t re-uplad yur custm calibratin signal file after yu upgrade the firmware f yur Centaur because it will be verwritten during the upgrade prcess. 5.6 Perfrm Maintenance Tasks Frm time t time, yu might have t perfrm simple maintenance tasks t ensure that yur Centaur cntinues t perate crrectly. These tasks include upgrading the firmware, and retrieving time series, SOH, r respnse files frm the Centaur's internal strage 1 r archives n the SD card. Yu can perfrm these tasks n the Maintenance page as well as dwnlad lg files; frmatting r repairing the SD card, restart/shut dwn the Centaur; and reindex r re-create the Centaur's internal strage. Yu have t be lgged in with the admin user accunt t perfrm any f the tasks n the Maintenance page. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the admin passwrd. Yu shuld nly click Shutdwn n the Maintenance page if yu are in the same lcatin as the Centaur because it is nt pssible t pwer it up remtely. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

92 Nanmetrics Inc Upgrade Firmware Befre yu upgrade the firmware n yur Centaur, refer t the release ntes fr the specific firmware versin fr recmmendatins and special cnsideratins. The Delete buttn n the Maintenance page is used t delete the firmware installatin package. The actual firmware will nt be deleted. If a firmware installatin package des nt exist n internal strage, then the Delete buttn is disabled. T upgrade r install yur firmware, fllw the prcedure belw: 1. Cntact Nanmetrics Technical Supprt t btain the latest firmware upgrade package (.tgz file) and dwnlad it t yur cmputer. 2. Access the Web Interface fr yur Centaur and navigate t the Firmware sectin n the Maintenance page. 3. If required, click the Cmmit buttn t make the active firmware permanent. If the currently laded firmware has already been cmmitted the Cmmit buttn is disabled. Yu can als verify if the firmware is cmmitted frm the Device sectin n the Health page. 4. If the Available Firmware field displays the versin number f a previusly upladed installatin package, click the Delete buttn t remve the installatin package frm yur Centaur. If n installatin package is present, the Available Firmware list is disabled. Only ne installatin package can be present n the Centaur. The previus versin must be deleted befre yu can uplad the latest firmware installatin package. Deleting a previusly upladed firmware installatin package will nt affect the peratin f yur Centaur. 5. Uplad and cmmit the latest firmware t yur Centaur: a. Click the Chse file buttn t select the new firmware installatin package t uplad t the Centaur. b. Click the Uplad buttn. A message will be displayed if the uplad is successful. c. Click the OK buttn t cnfirm the uplad and select the release frm the Available firmware list. Revisin: 17935R /07/

93 Nanmetrics Inc. d. Click the Apply buttn t temprarily install the firmware. Yur upgrade must be applied befre it can be cmmitted. The prgress f the installatin is shwn in the installatin lg. This peratin will take several minutes. The Centaur will restart autmatically after it has cmpleted installing the firmware. Yu shuld nt navigate away frm the Maintenance page until the Centaur has cmpleted installing the firmware and the device has restarted. e. After the Centaur has restarted, navigate t the Firmware sectin n the Maintenance page and click the Cmmit buttn t ensure the newly upgraded firmware is installed. 6. The installatin package is n lnger required nce the firmware has been cmmitted t the Centaur. Click the Delete buttn t remve the firmware installatin package frm yur Centaur. Deleting the firmware installatin package will nt affect the peratin f yur Centaur Retrieve Data frm the Internal Strage In additin t streaming data frm the Centaur t a netwrk device and archiving data t the remvable SD card, yu can als retrieve time series and SOH data directly frm the Centaur's internal strage 1 by dwnlading it frm the Maintenance page t yur cmputer. When yu specify the date and time range f the retrieval, remember that the internal strage wraps arund when it is full and recrds ver the ldest data. The frequency with which the internal strage wraps is shwn in the Internal Strage sectin n the Health Page. Only ne data retrieval request can be run frm ne Centaur at any time. Any subsequent retrieval requests will be prcessed when the current dwnlad has finished. 1 The device writes all f the data it receives t an internal strage. The internal strage wrks like a ring buffer and it wraps arund when it is full and recrds ver the ldest data. Revisin: 17935R /07/

94 Nanmetrics Inc Dwnlad Lg Files If required fr trubleshting purpses, yu can view and save the system lgs fr yur Centaur by clicking Lg files in the Dwnlad files sectin n the Maintenance page Dwnlad Archive Files If an SD card is present and cnfigured t archive cntinuus and/r event data, and SOH data, yu can peridically dwnlad archive files. Frm the Maintenance page, in the Dwnlad Files sectin, click Archive files. The archive pens in a separate tab in yur brwser where yu can select the files yu wish t dwnlad. The.stre directry n the SD card is the file system reserved by the Centaur fr backup strage. D nt delete the.stre directry r mdify files within the directry. The best way t prtect yur data is t cnfigure cntinuus archiving t yur SD card. Fr mre infrmatin, see Abut Data Strage. Cntinuus data are stred in directries labelled by date. Event data are cntained in the events directry. If yu have enabled SOH in either r bth cntinuus and event archives, yu will see an sh subdirectry in these archives. Archive files can nly be dwnladed ne file at a time using this methd. As an alternative, yu can dwnlad multiple files using secure FTP and an FTP client f yur chice. Dwnlading archived files frm the SD card while it is in the SIU is very slw due t data bus speed limitatins. It is recmmended that yu retrieve data frm the internal media (Stre) via the Maintenance page if it has nt wrapped already, r by physically remving the SD card and cpying data directly nt a cmputer Dwnlad Channel Respnse Files Yu can dwnlad channel respnse data directly frm the instrument in IRIS RESP r dataless SEED frmat. The respnse is based n the current instrument cnfiguratin. 1. Frm the Maintenance page, in the Channel Respnse sectin, select the desired file frmat frm the Chse respnse file frmat drp dwn list. Revisin: 17935R /07/

95 Nanmetrics Inc. 2. Click the Dwnlad buttn. A zip file cntaining ne respnse file fr each channel will be dwnladed t yur brwser's dwnlad lcatin Remvable Media The Remvable Media sectin n the Maintenance page prvides: infrmatin abut the status and the percentage f memry used n yur SD card. the ability t remtely re-frmat yur SD card in FAT32 r ext4 frmat. a repair functin that runs a file system check n yur SD card. Frmat SD Card Frmat yur SD card by selecting either FAT32 r ext4 and clicking Frmat n the Maintenance page. Any data n yur SD card is permanently deleted and a new file system is set up fr reading and writing data. It will take significantly lnger t frmat SD cards as ext4. Repair SD Card When yu repair yur SD card by clicking the Repair buttn n the Maintenance page, Centaur runs a file system check n yur SD card and repairs the file system, if pssible Perfrm Maintenance n the Internal Strage Typically, yu nly need t perfrm internal strage maintenance tasks when instructed t d s by Nanmetrics Technical Supprt fr trubleshting purpses. These tasks invlve using Internal Strage Tls n the Maintenance page t reindex r re-create the data Stre, which is lcated in internal strage media. Fr mre infrmatin abut internal strage, see Abut Data Strage. Reindexing the Stre T reindex the Stre, which is lcated n the internal strage media, click Reindex n the Maintenance page. The index within the Stre is recalculated and synchrnized with the actual Revisin: 17935R /07/

96 Nanmetrics Inc. data that is available. Reindexing might take a lng time depending n hw much data is in the Stre. Data will cntinue t be generated during reindexing and will nt be lst. Re-creating the Stre T re-create the Stre, click Re-create n the Maintenance page. All data in the Stre is permanently deleted and a new Stre is created. In the event f internal strage failure In the event f internal strage failure, the Status LED flashes red n the instrument and there will be a warning message n the Health page indicating that data is being written t a temprary lcatin. In this case the temprary lcatin is either the SD card, if present, r RAM if n SD card is present. The instrument reserves 500 MB f space n the SD card fr backup strage. When backup strage n the SD card reaches capacity, the Centaur verwrites the ldest data in the pre-allcated backup file system. The backup strage des nt verwrite data in the SD card's cntinuus r event archive(s). A smaller stre in RAM is reserved fr backup strage. The backup Stre in RAM is primarily used t backfill a limited amunt f data lst during netwrk utages fr deplyments using cntinuus streaming. Any cnfigured streamers are unaffected by internal strage failure. What shuld I d? Dwnlad files frm yur SD card t minimize data lss. Cntact Nanmetrics Technical Supprt. Supprt staff will instruct yu abut yur next steps, which may invlve re-indexing r re-creating the Stre, r replacing yur flash strage media Restart/Shut Dwn a Centaur Read the infrmatin in this tpic carefully befre yu shut dwn r restart yur Centaur frm the Maintenance page. Revisin: 17935R /07/

97 Nanmetrics Inc. Shut Dwn a Centaur Yu shuld nly click Shutdwn n the Maintenance page if yu are in the same lcatin as the Centaur because it is nt pssible t pwer it up remtely. Yu have t shut dwn a Centaur befre yu discnnect the pwer t avid ptential data crruptin and the pssibility f a lengthy reindexing f the internal strage n restart. When yu click Shutdwn, all data files are clsed and saved and the Web server is shut dwn s that n data is lst when the pwer is discnnected. Yu can discnnect the pwer t the Centaur when all f the LEDs n the case have turned ff. Restart a Centaur In general, yu shuld nly click Restart n the Maintenance page if instructed t d s by a Nanmetrics representative fr trubleshting purpses. Sme data lss will ccur while the Centaur is restarting. Revisin: 17935R /07/

98 Nanmetrics Inc. 6.0 Applicatin Prgram Interfaces (APIs) The fllwing HTTP-based APIs are available fr the Centaur. Data Availability API FDSN-WS Data Retrieval API Nanmetrics Data Retrieval API State f Health API Instrument Respnse API Syntax Unless indicated therwise, all parameters are ptinal. Optinal values are given in the frmat {a b}. The curly braces and vertical bar indicate the ptins and are nt part f the API request. Nte that APIs where all parameters are ptinal require the use f at least ne parameter t return data. The use f bld-italics indicates the default value f an ptinal parameter. 6.1 Data Availability API The Data Availability API prvides the means fr custm scripts and applicatins t retrieve data availability infrmatin frm Centaur. Requested data is defined by selecting a base URI t determine the data surce (band r channel). The data is further defined by selecting data surce, data type and time ptin parameters. The respnse data is prvided in JSON frmat and indicates ranges f time fr which cntiguus data is available n the instrument's primary, internal media. BASE URIs Use the fllwing URI t return data frm a device using the bandid/instrumentid parameter. /api/v1/bands/availability.jsn Use the fllwing URI t return data frm a device using the channels parameter. /api/v1/channels/availability.jsn.jsn is part f the base URIs. If yu specify any parameters, yu must remve.jsn frm the API request. Revisin: 17935R /07/

99 Nanmetrics Inc. Parameters type Use this parameter t specify data type. Frmat: type={all timeseries} Select all t return all data types. timeseries t return nly timeseries data. Example snippet: type=all bandid/instrumentid Use this parameter t specify a band r instrument data surce. Frmat1: bandid=instrumentid_sn/band/timeseries1 Example snippet: /api/v1/bands/availability?bandid=mc-ph1_ 0107/band/timeSeries... Frmat2:dataSurce={instrumentId_SN NX.STN} Example snippet: /api/v1/bands/availability?datasurce=centaur-3_ 0007&type=timeseries... Ntes: Netwrk.Statin frmat nly wrks with SEEDLink bands. Binder lkups are nt perfrmed. Multiple bandid parameters r instrumentid parameters are permitted. channels Use this parameter t specify a channel data surce. Nte that a binder is required. Frmat: channels={nx.stn.*} Example snippet: /api/v1/channels/availability?channels=xx.*.*.*&type=timeseries... Ntes: Revisin: 17935R /07/

100 Nanmetrics Inc. Uses channel naming cnfiguratin in internal Binder. If this parameter is mitted, infrmatin fr all available channels is returned. SOH channels return a mdifier n the end f the channel name t differentiate between ptentially different data that is available fr different SOH types. Refer t Channel list in the Apll Server User Guide fr the frmat fr specifying SCNL elements in a filter. view Use this parameter t trim returned data. Frmat: view=trimmed Example snippet: view=trimmed Ntes: Time ranges are trimmed t the time defined by the Time parameter. Sequence numbers are remved. Time Use this parameter t specify the ISO8601 time ptin. Frmat: {start end}time=yyyy-mm-ddthh:mm:ss.sssz Select: start t define the start time fr retrieving data using the ISO8601 standard. end t define the end time fr retrieving data using the ISO8601 standard. Example snippet: starttime=yyyy-mm-ddthh:mm:ss.sssz Ntes: Millisecnds (.sss) are ptinal. Time is expressed in accrdance with the ISO8601 standard. The Z indicates UTC (Zulu) time zne, nn-utc time znes are nt supprted. If yu d nt specify an end time, then it is assumed that the end time is the current time. Millis Use this parameter t specify the Millisecnds time ptin. Revisin: 17935R /07/

101 Nanmetrics Inc. Frmat: {start end}millis=############# Select: start t define the start time fr retrieving data in Millisecnds. end t define the end time fr retrieving data in Millisecnds. Example snippet: startmillis= &endmillis= Ntes: Since 1970 If yu d nt specify an end time, then it is assumed that the end time is the current time. Nans Use this parameter t specify the Nansecnds time ptin. Frmat: {start end}nans=################### Select: start t define the start time fr retrieving data in Nansecnds. end t define the end time fr retrieving data in Nansecnds. Example snippet: startnans= &endnans= Ntes: Since 1970 If yu d nt specify an end time, then it is assumed that the end time is the current time. Examples This sectin prvides examples f requests. Availability infrmatin fr the requested data surce and time perid (r all if unspecified) is returned. The date and time in the returned data is in ISO8601 frmat, including nansecnds. Fr instance, the cmbined date and time frmat is T10: Z. Nte that "ranges" in utput indicate gaps in the data. Several ranges in an utput culd indicate a prblem. Revisin: 17935R /07/

102 Nanmetrics Inc. bandid/instrumentid 21T12:00:00.000Z &type=timeseries&startTime= T00:00:00Z &type=timeseries&startMillis= &endMillis= Trimmed example f the JSON data returned fr bandid/instrumentid (... indicates where the data wuld cntinue) { availability : [ { id : titansma_0069/band/timeseries1, ranges : [ { starttime : T17:03: Z, endtime : T15:01: Z }, { starttime : T15:01: Z, endtime : T22:27: Z } ] }, { id : titansma_0069/band/timeseries2, ranges : [... Revisin: 17935R /07/

103 Nanmetrics Inc. channels 21T12:00:00.000Z T00:00:00Z tmillis= &endmillis= Trimmed example f the JSON data returned fr channels (... indicates where the data wuld cntinue { availability : [ { id : CI.ADO/BHZ, ranges : [ { starttime : T17:03: Z, endtime : T15:01: Z }, { starttime : T15:01: Z, endtime : T22:27: Z } ] }, { id : CI.ADO/BHN, ranges : [... Revisin: 17935R /07/

104 Nanmetrics Inc. 6.2 Web Service data dwnlad interface (FDSN-WS) This web service interface allws yu t dwnlad time series seismic data and SOH data in MiniSEED frmat. The API is cmpliant with FDSN-WS Specificatins versin 1.1. See fr cmplete details. The fdsnws-dataselect service currently supprts the fllwing methds: query versin applicatin.wadl The fllwing required parameters f fdsnws-dataselect service are supprted: starttime endtime netwrk statin lcatin channel The fllwing ptinal parameters are nt supprted at this time. quality minimumlength lngestnly frmat ndata Example snippet: /fdsnws/dataselect/1/query?netwrk=xx&statin=s0001&lcatin=*&channel=zz Z&starttime= T18:21:00.000&endtime= T18:22: Nanmetrics data retrieval API This API allws yu t dwnlad seismic data r SOH data frm a Centaur. This API has been deprecated. We recmmend that yu use the FDSN-WS Data Retrieval API. Revisin: 17935R /07/

105 Nanmetrics Inc. BASE URI /retrieval Parameters Grup Use this parameter t select either seismic data r SOH data t dwnlad. Frmat: Grup={TIME_SERIES SOH} Select: TIME_SERIES t dwnlad seismic data. SOH t dwnlad State-f-Health data. Example snippet: Grup=TIME_SERIES Ntes: The TIME_SERIES ptin is required if yu wish t use the TIME_SERIES_[n] parameter. The SOH ptin is required if yu wish t use the ENVIRONMENT, TIMING, r TRIGGER parameters. TIME_SERIES_[n] Use this sub-parameter t select time series data if yu have specified the TIME_SERIES grup. Frmat: TIME_SERIES_[n]=true; where n=the channel number Select true t dwnlad time series data fr the defined channel. Example snippet: TIME_SERIES_1=true&TIME_SERIES_2=true&TIME_SERIES_3=true Ntes: Yu can nly use this parameter if yu have specified the TIME_SERIES grup. At least ne channel must be defined. If yu d nt define a channel an HTTP 500 errr stating that "n channels were selected" will result. One r mre channels may be included in each request. Revisin: 17935R /07/

106 Nanmetrics Inc. The available channels are as fllws: Centaur3: TimeSeries1/2/3, 1/2/3/101/102/103 with secndary channels enabled. Centaur6: TimeSeries1/2/3/4/5/6, 1/2/3/4/5/6/101/102/103/104/105/106 with secndary channels enabled. The number f channels available depends n the Centaur mdel and cnfiguratin. The SCNL infrmatin included in the MiniSEED file is defined in the Channel Naming sectin. ENVIRONMENT Use this sub-parameter t retrieve envirnment SOH data if yu have specified the SOH grup. Frmat: ENVIRONMENT=true Select true t dwnlad envirnment SOH data fr the defined time range. Example snippet: ENVIRONMENT=true Ntes: Yu can nly use this parameter if yu have specified the SOH grup. This parameter can be called with the TIMING and TRIGGER parameters. Several SOH grups may be selected and multiple grups can be dwnladed in a single request. Refer t SOH Grups fr a listing f the data available fr each SOH grup. TIMING Use this sub-parameter t retrieve timing SOH data if yu have specified the SOH grup. Frmat: TIMING=true Select true t dwnlad timing SOH data fr the defined time range. Example snippet: TIMING=true Ntes: Yu can nly use this parameter if yu have specified the SOH grup. This parameter can be called with the ENVIRONMENT and TRIGGER parameters. Several SOH grups may be selected and multiple grups can be dwnladed in a single Revisin: 17935R /07/

107 Nanmetrics Inc. request. Refer t SOH Grups fr a listing f the data available fr each SOH grup. TRIGGER Use this sub-parameter t retrieve envirnment SOH data if yu have specified the SOH grup. Frmat: TRIGGER=true Select true t dwnlad trigger SOH data fr the defined time range. Example snippet: TRIGGER=true Ntes: Yu can nly use this parameter if yu have specified the SOH grup. This parameter can be called with the ENVIRONMENT and TIMING parameters. Several SOH grups may be selected and multiple grups can be dwnladed in a single request. Refer t SOH Grups fr a listing f the data available fr each SOH grup. Millis Use this parameter t define the start and end time fr the seismic r SOH data. Frmat: {start end}millis=<{start end} time in millisecnds since epch> Select: start t define the start time fr retrieving data in Millisecnds. end t define the end time fr retrieving data in Millisecnds. Example snippet: startmillis=<start time in millisecnds since epch> SOH Grups Envirnment SOH Timing SOH Triggers SOH Supply vltage Lcatin Start time Ttal current GPS receiver status Duratin Revisin: 17935R /07/

108 Nanmetrics Inc. Envirnment SOH Timing SOH Triggers SOH Temperature GPS satellites used Channel Timing status Vtes Timing phase lck Timing uncertainty 6.4 State f Health API Use this API t retrieve the current status f all SOH channels n the specified instrument in JSON frmat. This API als allws yu t share the infrmatin with ther applicatins such as external reprting tls. BASE URI /api/v1/instruments/sh Parameters instrumentid Use this parameter t specify the target instrument. Frmat: instrumentid=[instrumentid] Example snippet: instrumentid=centaur-6_0242 Ntes: If yu d nt specify an instrument, the instrument will reprt its wn SOH. pretty Use this parameter t retrieve the data in human-readable frmat. Frmat: pretty={true false} Select: Revisin: 17935R /07/

109 Nanmetrics Inc. true t utput the requested data in human-readable frmat. false t utput the requested data in machine language. Example snippet: pretty=true 6.5 Instrument respnse API Use this API t dwnlad verall instrument respnse. The respnse is based n the current instrument cnfiguratin. Fr Centaur the sensr library cntains respnse infrmatin fr all Nanmetrics and sme third party sensrs. Nanmetrics can include sensr respnse fr additinal third party sensrs. Cntact techsupprt@nanmetrics.ca fr mre details. BASE URIs Use the fllwing URI t return a dataless SEED file. /api/v1/respnses/channels.dataless Use the fllwing URI t return an IRIS RESP file. /api/v1/respnses/channels.resp Use the fllwing URI t return a JSON file. /api/v1/respnses/channels.json Parameters allinone Use this parameter t gather all f the channel respnse files int ne file fr dwnlading. Frmat: allinone={true false} Select: true t return a zip file f all channel respnse files. false t return a separate respnse file fr each channel. Example snippet: allinone=true Revisin: 17935R /07/

110 Nanmetrics Inc. 7.0 Reference Infrmatin This sectin cntains infrmatin n everything frm technical specificatins t physical features and dimensins. 7.1 Technical Specificatins The Centaur prvides ne r tw three-channel banks f high perfrmance 24-bit digital recrders, each mdel designated as a three- r six-channel Centaur. The tw types f digital recrder banks available are the Standard digital recrder mdel with inputs designed fr active-utput instruments such as bradband seismmeters, and the High-Gain digital recrder mdel designed t recrd signals frm passive utput sensrs such as gephnes. A six-channel Centaur may have ne bank f each type r bth banks f the same type. The specificatins fr the Centaur are listed in the fllwing tables: Sensr Inputs Sensr Cmpatibility Digitizer Perfrmance Calibratin External SOH Inputs Recrding (Cntinuus) Recrding (Events) Data Retrieval Data Streaming Timing Cmmunicatins Lcal User Interface Cnnectrs Pwer Pwer Usage Physical Characteristics Sensr Inputs Channels One r tw banks f 3-channel high-perfrmance 24-bit digital recrders: standard digital recrder ptin: 3 r 6 channels ptimized fr active-utput bradband seismmeters high-gain digital recrder ptin: 3 r 6 channels designed fr passive-utput sensrs such as gephnes Revisin: 17935R /07/

111 Nanmetrics Inc. A 6-channel Centaur may have ne 3-channel bank f each type (standard and high-gain) r bth banks f the same type. Sampling Simultaneus n all 3 r 6 channels Reslutin 24 bits per channel, full 24-bit range t clip level Input Impedance 40 kω (Standard digital recrder mdel) 1.8 MΩ (High-Gain digital recrder mdel) Input Vltage Range Standard digital recrder mdel: 40 V, 20 V, 10 V, 4 V, 2 V, 1 V peak-t-peak differential, sftware selectable High-Gain digital recrder mdel: 10V, 5V, 2.5V, 1V, 0.5V, 0.25V peak-t-peak differential, sftware selectable Sensr Cmpatibility Sensr Types Bradband active seismmeters fr Standard digital recrder mdel Shrt perid passive seismmeters and gephnes fr High-Gain digital recrder mdel Cntrl Lines 6 per sensr input - typically used fr Cal enable, mass centre, mass lck/unlck, and selecting XYZ/UVW Cnfigurable lgic level: Revisin: 17935R /07/

112 Nanmetrics Inc. High: 5 V, 12 V, pen drain Lw: 0, pen drain Cnfigurable assert and de-assert behaviur is cnsistent acrss all cntrl lines Sensr Pwer Supply pwer pass-thrugh t sensr (9-36 VDC, 1A). Over-current and surge prtected Serial Interface Supprts digital management f Nanmetrics sensrs Digitizer Perfrmance Type True 24-bit ADC per channel Preamp Gain Standard digital recrder mdel: Gain Gain (db) Input vltage range Clip Sensitivity 1x 0 db 40 Vpp ±20.97 V 0.4 cunts/µv 2x 6 db 20 Vpp ±10.48 V 0.8 cunts/µv 4x 12 db 10 Vpp ±5.24 V 1.6 cunts/µv 10x 20 db 4 Vpp ±2.10 V 4 cunts/µv 20x 26 db 2 Vpp ±1.05 V 8 cunts/µv 40x 32 db 1 Vpp ±0.524 V 16 cunts/µv Revisin: 17935R /07/

113 Nanmetrics Inc. High-gain digital recrder mdel: Gain Gain (db) Input vltage range Clip Sensitivity 4x 12 db 10 Vpp ±5.24 V 1.6 cunts/µv 8x 18 db 5 Vpp ±2.62 V 3.2 cunts/µv 16x 24 db 2.5 Vpp ±1.31 V 6.4 cunts/µv 40x 32 db 1 Vpp ±0.524 V 16 cunts/µv 80x 38 db 0.5 Vpp ±0.262 V 32 cunts/µv 160x 44 db 0.25 Vpp ±0.131 V 64 cunts/µv Sample Rates 1, 2, 5, 10, 20, 40, 50, 80, 100, 200, 250, 500, 1000, 2000, and 5000 sps Dual Sample Rates A secnd sample rate can be selected frm the sample rates abve Lw-pass Filter Filter type: Linear phase (cntact Nanmetrics fr ther ptins) Attenuatin: 140 db at utput Nyquist, 0 db at 80% Nyquist frequency Digital Filters Lw-pass and high-pass high-quality digital filters, independently user cnfigurable frm first t fifth rder with crner frequencies frm 0.1 mhz t 50% f sample rate. Different filters may be independently cnfigured fr primary and secndary sample rates and fr the Sensr A and Sensr B channel banks n 6-channel Centaurs. Revisin: 17935R /07/

114 Nanmetrics Inc. Accuracy Sensitivity accurate t ±0.5% Dynamic Range Standard digital recrder mdel: sps, sps (40 Vpp range) High-Gain digital recrder mdel: sps, sps (10 Vpp range) Nise Flr (typical) Shrted Input (RMS) Standard digital recrder mdel: Sample rate 40 Vpp input range 2 Vpp input range (μv) High-Gain digital recrder mdel: Sample rate 10 Vpp input range 0.5 Vpp input range (μv) Revisin: 17935R /07/

115 Nanmetrics Inc. High-Gain digital recrder mdel: Sample rate 10 Vpp input range 0.5 Vpp input range (μv) Calibratin Signal Surce 16-bit DAC with 30 ksps utput Attenuatin Attenuate the calibratin signal by the specified value. Optins are 1, 10, 100, Factry default is 1. Wavefrms Playback audi files created in standard.wav file editrs Step and 1 Hz sine prvided User installed custm wavefrms Pseud randm binary (PRB) External State-Of-Health (SOH) Inputs This nly applies t Centaur mdels that have an external SOH input. See applicable mdels. Channels 3 single-ended ±5V inputs, 50 kω input impedance Revisin: 17935R /07/

116 Nanmetrics Inc. Sampling Cnfigurable frm 60 t 3600 secnds, nn-simultaneus Reslutin 18 bits effective reslutin Recrding (Cntinuus) Frmats MiniSEED 1, Nanmetrics NP 2 Internal Strage 8 GB flash memry (ther capacities available upn request) Remvable Media SD card up t 64 GB Recrding (Events) Triggers Bandpassed STA/LTA r threshld Captured Data Recrded n SD card: MiniSEED 3, ASCII 4 (COSMOS, SMC, Text) 1 A versin f SEED data which nly cntains wavefrm data. N statin r channel metadata is included. 2 A packet frmat develped by Nanmetrics that is used fr the transmissin f data. 3 A versin f SEED data which nly cntains wavefrm data. N statin r channel metadata is included. 4 American Standard Cde fr Infrmatin Interchange Revisin: 17935R /07/

117 Nanmetrics Inc. Data Prducts Peak Grund Mtin (PGA, PGD, PGV) statistics available n instrument fr cnnected accelermeters Data Retrieval File Transfer via Ethernet, Wi-Fi, r Ethernet-cnnected DSL, cellular, VSAT, radi Media Exchange SD card field-swappable during cntinuus recrding with n lss f data Data Streaming Cntinuus Seismic data and State-f-Heath data Data Frmats SEEDLink (ptinal) r NP 1 (standard) Events Triggered event data: , secure file transfer, ther ptins available Timing Timing System Internal DCXO clck disciplined t GPS External PTP v1 (IEEE ) timing surce (ptinal firmware, please cntact Nanmetrics.) 1 A packet frmat develped by Nanmetrics that is used fr the transmissin f data. Revisin: 17935R /07/

118 Nanmetrics Inc. Timing Accuracy <100 µs (with GPS pwer mde set t Duty cycled) <5 µs (with GPS pwer mde set t Always n) <500 μs (using external PTP v1 (IEEE ) timing surce n lcal LAN) GPS Receiver Internal 12-channel receiver GPS Pwer Selectable: Always n r Duty cycled PTP (ptinal) High-precisin netwrk timing via Nanmetrics PTP Master n same LAN (IEEE ) Cmmunicatins Web-based UI Supprts standard PC, tablet, and mbile platfrms Prvided via nbard Web server Use Web Interface fr: State-f-health, wavefrm, and sensr mnitring Viewing event infrmatin and dwnlading events Calibratin, cnfiguratin, and maintenance Interfaces 10/100 Base-T Ethernet, WiFi (ptinal) IP Addressing Static IP, dynamic (DHCP), r link-lcal IP address Revisin: 17935R /07/

119 Nanmetrics Inc. Prtcls UDP/IP (unicast/multicast) r HTTP-based streaming Lcal User Interface Remvable Media SD card prtected in waterprf media bay. Media eject buttn and LED ensures gap-free swapping External Status LEDs System status, Ethernet link, Time quality, Media card status, and Sensr A & B state-f-health Buttns Wi-Fi wake-up, media eject, system shutdwn Cnnectrs Sensr 26-pin, shell size 16, female MIL-C Series 1 Recmmended mate: Suriau A16-26P Pwer 3-pin, shell size 8, male MIL-C-26482G Series 1 Recmmended mate: Suriau JC8-3AS Ethernet Watertight RJ-45 cnnectr USB USB 2.0 type A receptacle behind media bay dr Revisin: 17935R /07/

120 Nanmetrics Inc. Recmmended mate: USB 2.0 type A, male GPS Antenna TNC 1 female with 3.3 V supply fr active antenna External State-Of-Health (SOH) 4-pin, shell size 8, female MIL-C Series 1 Recmmended mate: Suriau JC8-4PW This nly applies t Centaur mdels that have an external SOH input. See applicable mdels Pwer Pwer Supply 9-36 V DC islated input Prtectin Electrnic resettable fuse design Reverse battery and shrt circuit prtectin Battery Manager User-cnfigurable lw vltage shutdwn and restart threshlds Grunding Grunding lug screw and wire included Pwer Usage GPS duty-cycled, recrding t internal media. 1 Threaded Neill-Cncelman Revisin: 17935R /07/

121 Nanmetrics Inc. Standard pwer usage fr each digital recrder type 3-channel standard digital recrder: 1.0 W 6-channel standard digital recrder: 1.6 W 3-channel high-gain digital recrder: 1.2 W 6-channel high-gain digital recrder: 2.0 W 3-channel standard & 3-channel high-gain cmbined digital recrder: 1.8 W If yu have: Ethernet cnnected, add 300 mw t the abve numbers. GPS always n, add 400 mw t the abve numbers. Fr each set f 3 high-gain channels, add 200 mw t the abve numbers Physical Characteristics Husing Aluminum Surface resistant t crrsin, scratches, and chips Weather Resistance Rated t IP-68 with cnnectrs mated r capped (48 hurs immersin at 2 m depth) Humidity 0 t 100% Operating Temperature -20 C t +60 C Strage Temperature -40 C t +70 C Weight 1.9 kg (3-channel), 2.0 kg (6-channel) Revisin: 17935R /07/

122 Nanmetrics Inc. Size Length: 196 mm Width: 137 mm Height: 88 mm 7.2 SOH channels in Steim cmpressed frmats The Centaur stres selected SOH channels in Steim cmpressed frmats. This data can be retrieved frm the internal strage, streamed via SEEDLink r dwnladed in MiniSEED frmat via the Maintenance page. Cde Descriptin Units Ntes EX1 External SOH channels micrvlts EX2 1 t 3 EX3 LCE Abslute clck phase micrsecnds The difference between the digitizer clck and errr the GPS receiver. When GPS value is ff r unlcked, as indicated by GST, the LCE value will be 0. Revisin: 17935R /07/

123 Nanmetrics Inc. Cde Descriptin Units Ntes LCQ Clck quality A heuristic time quality value that can be defined as fllws: 100% means that the system lcked t GPS with time errr < 5 μs 90% signifies an estimated time errr f < 100 μs (GPS duty cycling, r carse lcked) 70% signifies an estimated time errr f < 200 μs (GPS carse lcked r system free running) <70% decrements frm 70% by 1% fr each hur free running 0% means that the system has never lcked r been free running fr mre than 70 hurs VCO VCO cntrl vltage (fr raw DAC timing scillatr) cunts VEC Digitizer system milliamps current VM1 Sensr SOH channels 1 micrvlts This value typically represents mass psitin. VM2 t 6 VM1 t 3 fr Sensr A SOH 1 t 3 VM3 VM4 t 6 fr Sensr B SOH 1 t 3 VM4 Fr Nanmetrics seismmeters: VM5 VM1/VM4 = W axis VM6 VM2/VM5 = V axis VM3/VM6 = U axis Nte that SOH channels 4 t 6 are nly available n 6-channel Centaur mdels. Revisin: 17935R /07/

124 Nanmetrics Inc. Cde Descriptin Units Ntes VPB Digitizer buffer percent used This value is typically 100% nce the buffer is full. GNS GPS number f satellites used The number f satellites used by the timing slutin. If the GPS receiver status is ff as indicated by GST, the last knwn value is preserved. GLA GPS latitude micrdegrees GLO GPS lngitude micrdegrees GEL GPS elevatin micrmetres GST GPS status 0=ff, 1=unlcked, 2=lcked GPL GPS PLL status 0=n lck, 1=carse lck, 2=fine lck, 3=free running VDT Digitizer system temperature millidegrees Celsius VEI Input system vltage millivlts GAN GPS antenna status 0=k, 1=n antenna, 2=antenna shrt 7.3 Wi-Fi Access t the Centaur If yu need t access the Web interface f a Centaur that is nt cnnected via Ethernet t the Internet r a laptp, yu can create a Wi-Fi cnnectin t the device using the ptinal USB Wi-Fi Accessry Kit and access it using a Wi-Fi device. The kit cntains a USB Wi-Fi dngle that yu can install permanently (using the O-ring and Media Bay dme cver supplied in the kit) r use temprarily depending n yur needs. The Wi-Fi cnnectin is nly activated when the Wake buttn n the Centaur is pressed. Wi-Fi access t the Centaur is autmatically disabled after the Wi-Fi cnnectin has been idle fr mre than 5 minutes Revisin: 17935R /07/

125 Nanmetrics Inc. r when the device is shut dwn r restarted. It is als disabled when the USB eject buttn is pressed (used fr safe remval f the dngle). 1. Accessing the Web interface f the Centaur ver Wi-Fi can cause lw levels f nise in the digitized data. 2. Ensure yur Wi-Fi device is at least ne metre frm the Centaur t achieve reliable cmmunicatins. At a high level, yu have t perfrm the fllwing steps t access the Centaur ver Wi-Fi: 1. Remve the Media Bay cver. 2. Insert the USB Wi-Fi dngle and then press the Wake buttn t activate the Wi-Fi. Yu can als press the Wake buttn befre yu insert the USB Wi-Fi dngle but yu have t insert the dngle within 4 minutes f pressing the buttn. 3. Select the Centaur wireless netwrk n yur Wi-Fi device and type the passwrd w1f1admin t cnnect t it. We recmmend that yu change yur passwrd after yu have lgged n fr the first time. See Changing the admin passwrd. The name f the wireless netwrk is centaur-3_xxxx r centaur-6_xxxx, where XXXX is the serial number f the device. 4. Type r int yur brwser t access the Web interface f the Centaur. When yu have finished accessing the Web interface, press the USB eject buttn and wait until the USB eject LED turns slid green befre yu remve the USB Wi-Fi dngle and replace the Media Bay cver. If yu are installing the dngle permanently, yu d nt need t press the USB eject buttn but yu d need t place the O-ring nt the Media Bay dme cver (bth supplied in the USB Wi-Fi Accessry Kit) and screw the dme int the Media Bay slt t prtect the Media Bay frm the elements. 7.4 Cnnectrs and Pinuts This sectin des nt include pinuts fr industry standard cnnectrs. See the Technical Specificatins Technical Specificatins fr the full list f cnnectrs. Revisin: 17935R /07/

126 Nanmetrics Inc. Pwer cnnectr Sensr cnnectr External SOH Input Pinut Pwer Cnnectr Receptacle and Pinut Cnnectr type: 3-pin, shell size 8 MIL-C-26482G Series 1 Recmmended mating cnnectr: Suriau JC8-3AS Pin Name Functin A PWR Raw (battery) pwer in (9 V t 36 V DC) B CHGND Internal cnnectin t chassis grund C PWR_RTN Raw pwer return Revisin: 17935R /07/

127 Nanmetrics Inc Sensr Cnnectr and Pinut Cnnectr type: 26-pin, shell size 16, female MIL-C Series 1 Pin Name Functin Details U CH1+ Channel 1 input ±20 V, differential C B CH1_GND Channel 1 grund/shield Cnnected t shield grund A CH2+ Channel 2 input ±20 V, differential S Recmmended mating cnnectr: Suriau A16-26P CH1- CH2- Revisin: 17935R /07/

128 Nanmetrics Inc. Pin Name Functin Details T CH2_GND Channel 2 grund/shield Cnnected t shield grund a CH3+ Channel 3 input ±20 V, differential P CH3- R CH3_GND Channel 3 grund/shield Cnnected t shield grund K SEN_SOH1 Sensr state f health input signals X SEN_SOH2 ±10 V, single-ended Referenced t DGND J SEN_SOH3 H SEN_CTRL1 Sensr cntrl signal utputs W SEN_CTRL2 0 V / 5 V / 12 V / high impedance Referenced t DGND G SEN_CTRL3 Z SEN_CTRL4 c SEN_CTRL5 Y SEN_CTRL6 N SEN_CAL1 Sensr calibratin signal utputs M SEN_CAL2 ±5 V single ended Referenced t DGND in vltage mde L SEN_CAL3 V DGND Digital grund Digital grund Revisin: 17935R /07/

129 Nanmetrics Inc. Pin Name Functin Details F SEN_V+ Sensr pwer supply Filtered, unregulated vltage E SEN_V- Reserved fr future use D SEN_RTN Sensr pwer return Switched, vercurrent prtected b CHGND Chassis External SOH Input Pinut This nly applies t Centaur mdels that have an external SOH input. See applicable mdels. Cnnectr type (n chassis): 4-pin, shell size 8, female MIL-C Series 1 Required mating cnnectr: MIL-C cnnectr, 4-pin, shell size 8, male Suriau JC8-4PW Pin Name Functin A Channel 1 Channel 1 input Revisin: 17935R /07/

130 Nanmetrics Inc. Pin Name Functin B Channel 2 Channel 2 input C Channel 3 Channel 3 input D GND Grund reference fr SOH input Making the Ethernet Cable Cnnectr Waterprf If required fr yur applicatin, yu can make the Ethernet cable cnnectr n the Centaur waterprf by installing a sealing plug nt the end f the Ethernet cable. T perfrm this task, yu need The Ethernet cable sealing plug that was shipped in the bx with the Centaur A crimping tl A wire cutter/stripper tl An Ethernet cable An Ethernet cable cnnectr (RJ45) T cmplete this task 1. Cut the RJ45 cnnectr ff f the end f the Ethernet cable and dispse f it. 2. Thread all three parts f the Ethernet cable sealing plug separately nt the Ethernet cable in the fllwing rder: sealing nut, cupling nut, bdy. Revisin: 17935R /07/

131 Nanmetrics Inc. 3. Crimp a new RJ45 cnnectr nt the end f the Ethernet cable in accrdance with the EIA/TIA T568B wiring diagram fr a Cat 5 cable. 4. Press the tab dwn int the grve n the RJ45 cnnectr and slide the bdy f the Ethernet cable sealing plug dwn nt it. 5. Fit the cupling nut nt the bdy and mve it t the end near the RJ45 cnnectr. 6. Thread the sealing nut nt the ther end f the bdy and tighten it. After yu have tightened the sealing nut, it shuld nt be pssible t slide the cable thrugh the Ethernet cable sealing plug: there shuld be n mvement at all. 7. Plug the Ethernet cable int the Ethernet cnnectr n the Centaur, thread the cupling nut n t the Ethernet cnnectr, and tighten it t seal the entire cnnectin. Revisin: 17935R /07/

132 Nanmetrics Inc. Revisin: 17935R /07/

133 Nanmetrics Inc. 7.5 Physical Features and Dimensins Refer t the fllwing figures t view the features and dimensins. All dimensins in the figures are in millimetres unless therwise stated. Tp View Side View View f External Cnnectrs View f Open Media Bay Dr Tp View f the Centaur Dimensins are in millimetres unless therwise stated. Revisin: 17935R /07/

134 Nanmetrics Inc. The external SOH input is nt available n all Centaur mdels. See applicable mdels. Revisin: 17935R /07/

135 Nanmetrics Inc Side View f the Centaur View f the External Cnnectrs Dimensins are in millimetres unless therwise stated. Revisin: 17935R /07/

136 Nanmetrics Inc View f Open Media Bay The external SOH input is nt available n all Centaur mdels. See applicable mdels. Revisin: 17935R /07/