HygroClip 2 (HC2) Humidity Temperature Probes User Guide

Transcription

1 Page 1 f 29 Prbes User Guide

2 Page 2 f 29 Table f cntents 1 Overview Hardware and sftware cmpatibility Mdels General descriptin Pwer supply Measured parameters Calculated parameters Analg utput signals Digital interface Cnnectr Sensr prtectin (dust filter) User cnfigurable settings and functins Functin verview Factry default settings Mechanical installatin General guidelines fr fixed installatin Electrical installatin General guidelines fr fixed installatin Analg signal wiring Minimum analg utput lad Digital signal wiring Grunding Operatin Operatin with an indicatr, data lgger r transmitter Stand-alne peratin as an analg prbe Stand-alne peratin as a digital prbe (PC r netwrk) Cnnectivity examples fr stand-alne prbes Hand-held prbes used with an indicatr Maintenance Cleaning r replacing the dust filter Peridic calibratin check Validatin f the utput signals transmissin Firmware updates Technical data Specificatins Dew pint accuracy Effect f cable temperature n the accuracy f prbes HC2-C04 and HC2-C Accessries and parts Supprting dcuments Dcument releases... 29

3 Page 3 f 29 Applicability: This manual applies t all HC2 prbes with firmware versin 1.x, where 1.x can be 1.0, 1.1, etc. Changes t the last digit f the versin number reflect minr firmware changes that d nt affect the manner in which the prbe shuld be perated. 1 Overview The HC2 series are digital humidity-temperature prbes based n the AirChip 3000 technlgy. These prbes fe linear analg utput signals. The HC2 prbes are designed fr use with the HygrClip 2 generatin f ROTRONIC humidity-temperature instruments: hand-held and bench tp indicatrs, data lggers, transmitters, hygrstats, etc. The HC2 prbes maintain all f the benefits f the riginal HygrClip technlgy such as the pssibility f ht-swapping prbes and feature significant imprvements in the area f measurement accuracy and functinality. The HC2 prbes can als be used as a stand-alne device using either the analg utput signals r the prbe digital interface. Cnnectrs, cables and digital interface adapters are available t this purpse. Digital integratin with OEM applicatins is facilitated by the prbe cmmunicatin prtcl ptins. The HC2 prbes ffer the fllwing user functins: User cnfigurable settings Calculatin f the dew r frst pint Humidity temperature calibratin and adjustment Simulatr mde Autmatic humidity sensr test and drift cmpensatin Sensr failure mde Data recrding The ability fr the user t easily update the AirChip 3000 firmware means that the HC2 prbes can be kept upt-date regarding any future functinality imprvement. Available in different cnfiguratins, the HC2 prbe series is designed t meet the requirements f a large number f applicatins and envirnments. 1.1 Hardware and sftware cmpatibility The HC2 prbes are cmpatible nly with the AirChip 3000 generatin f ROTRONIC humidity-temperature instruments and are nt backward cmpatible with instruments based n the previus technlgy. Cnfiguratin f the HC2 prbes and access t the prbe functins requires a PC with the ROTRONIC HW4 sftware versin r higher r cnnectin t a cmpatible instrument frm ROTRONIC.

4 Page 4 f 29 2 Mdels In the fllwing tables, we have indicated the type f instrument primarily used with each prbe mdel. The fllwing shuld als be nted: The HC2 prbes can be directly cnnected t a PC r t an Ethernet netwrk using ne f the available digital interface adapters (see separate dcument E-M-HC2-accessries). The HC2 Prbes can als be used as a stand alne device with tw analg utput signals. Different cnnectrs are available t this purpse (see separate dcument E-M-HC2-accessries). Regardless f the prbe mdel, the analg utputs signals are always scaled in the same way by the %RH and - C). The user is respnsible fr recnfiguring the prbe analg utputs (requires the ROTRONIC HW4 sftware) and fr prviding pwer t the prbe. Climate measurement Fr use with indicatrs, data lggers and transmitters, with r withut an extensin cable Temperature limits -5 C (-58 F) HC2-S HC2-S3 Husing and filter cap: plycarbnate, black Standard dust filter: NSP-PCB-PE (Plyethylene) Accurate measurements require full immersin in the envirnment t be measured Weight: apprx. 10 g (0.35 z) Same as HC2-S but with white husing and filter cap fr utdr use

5 Page 5 f 29 Measurement in tight spaces Fr use with indicatrs, data lggers and transmitters HC2-C04 Temperature limits - 85 C (- 185 F) Diameter: 4 mm (0.1 cable length (electrnics prbe tip: abut 0.59 m (1.9 ft) Prbe electrnics husing: plycarbnate, black Weight: apprx. 150 g (5.3 z) HC2-C05 Same as HC2-C05 but with Can be equipped with Tefln dust filter SP-T05 Weight: apprx. 160 g (5.6 z) Nte: accuracy f the HC2-C04 and HC2-C05 prbe mdels is affected by the temperature f the cable separating the sensrs frm the electrnics (see 10.3). Spt check measurements in air ducts, chambers and vens Handheld prbe fr use with indicatrs and data lggers HC2-HK25 HC2-HK40 Temperature limits at sensr C ( F) Barrel: diameter: 15 Prbe cable length: 2 m (6.5 ft) Handgrip: POM, black -, barrel: PPS, black Filter base (NSP-ME) with wire mesh filter cartridge (SP-M15) Weight: apprx. 210 g (7.4 z) Temperature limits at sensr - C (- F) Same as HC2-HK25 but with barrel 400 mm barrel length (15.7 Weight: apprx. 240 g (8.5 z)

6 Page 6 f 29 Measurement f dust-free granular prducts in bulk Handheld prbe fr use with indicatrs and data lggers HC2-P05 Temperature limits - C (- F) Barrel: diameter: 5 mm ( mm (7.9 Prbe cable length: 2 m (6.5 ft) Handgrip: POM, black - barrel: stainless steel Weight: apprx. 160 g (5.6 z) Measurement f seeds, granulates and pwders in bulk Handheld prbe fr use with indicatrs and data lggers HC2-HP28 Temperature limits at sensr C ( F) Barrel: diameter: 10 mm ( mm (11.0 Prbe cable length: 2 m (6.5 ft) Handgrip: POM, black - barrel: aluminum / elx Dust filter: sintered steel filter cartridge (ET-Z10) Weight: apprx. 200 g (7.1 z) HC2-HP50 Same as HC2-HP28 but with barrel 500 mm barrel length (19 Weight: apprx. 250 g (8.8 z)

7 Page 7 f 29 Measurement f paper cardbard stacks and rlls Handheld prbe fr use with indicatrs and data lggers HC2-HS28 HC2-HS42 Temperature limits at sensr - C (- F) Blade: Prbe cable length: 2 m (6.5 ft) Weight: apprx. 240 g (8.5 z) Handgrip: POM, black - blade: aluminum / elx Same as HC2-HS28 but with 420 mm blade length (16.5 Weight: apprx. 300 g (10.6 z) mm Measurement f prduct samples (liquids, pastes, pwders, granules r chunks) Handheld prbe fr use with indicatrs and data lggers HC2-AW Temperature limits at sensr - C (- F) Barrel: aluminum (tp), stainless steel (bttm) Prbe cable length: 0.95 m ( ) Weight: apprx. 541 g (1 lb 3.1 z) Use tgether with WP14 r WP-40 sample cup hlder Prir t use, verify the integrity and cleanliness f the sealing O-ring lcated under the prbe Pwer Indicatr (red LED) Pwer ON/OFF (push buttn) Nte: When using the HC2-AW prbe, check that the red LED n tp f the prbe is lit. This indicates that the prbe is being pwered. If necessary, pwer the prbe by pressing nce n the red buttn lcated n tp f the prbe. When the red LED is nt lit, the prbe is nt pwered and the instrument is nt receiving a signal frm the prbe.

8 Page 8 f 29 Prcess measurement (fixed installatin) Fr use with transmitters and data lggers HC2-IC102 HC2-IC105 HC2-IC302 HC2-IC305 Temperature limits at sensr - C (- F). See nte belw Prbe cable length.: 2 m (6.5 ft) r 5 m (16.4 ft) Barrel: PPS Filter base (NSP-ME). Filter cartridge t be rdered separately Weight: with 2 m cable apprx. 230 g (8.1 z), + 80 g (2.8 z) per additinal meter Same as HC2-IC1xx but with 250 mm barrel length fr thrugh wall installatin Weight: with 2 m cable apprx. 260 g (9.2 z), + 80 g (2.8 z) per additinal meter Nte: HC2-IC1 (100 mm barrel length) t avid measurement errrs due t temperature gradients fully immerse the prbe barrel in the envirnment t be measured Prcess measurement (fixed installatin) Fr use with transmitters and data lggers HC2-IC302-A HC2-IC305-A HC2-IC402-A HC2-IC405-A HC2-IC502-A HC2-IC505-A HC2-IC702-A HC2-IC705-A Temperature limits at sensr - C (- F) Barrel: diameter: 25 / 15 mm (1.0 / 250 mm (9.8 Prbe cable length.: 2 m (6.5 ft) r 5 m (16.4 ft) Barrel: PPS, black Filter base (NSP-ME). Filter cartridge t be rdered separately Designed fr thrugh wall installatin Weight with 2 m cable: apprx. 290 g (10.2 z), + 80 g (2.8 z) per additinal meter Same as HC2-IC3xx-A Weight with 2 m cable: apprx. 320 g (11.3 z), + 80 g (2.8 z) per additinal meter Same as HC2- IC3xx-A Weight with 2 m cable: apprx. 350 g (12.3 z), + 80 g (2.8 z) per additinal meter Same as HC2- IC3xx-A Weight with 2 m cable: apprx. 380 g (13.4 z), + 80 g (2.8 z) per additinal meter

9 Page 9 f 29 Prcess measurement (fixed installatin) Fr use with transmitters and data lggers HC2-IM102 HC2-IM105 HC2-IM302 HC2-IM305 HC2-IM402 HC2-IM405 HC2-IM502 HC2-IM505 Temperature limits at sensr - C (- F) 20 mm (4.7. See nte belw Prbe cable length.: 2 m (6.5 ft) r 5 m (16.4 ft) Barrel: stainless steel Filter base (SP-MSB15). Filter cartridge t be rdered separately Weight with 2 m cable: apprx. 260 g (9.2 z), + 80 g (2.8 z) per additinal meter Same as HC2-IM1xx but with 280 mm barrel length(11.0 thrugh wall installatin Weight with 2 m cable: apprx. 400 g (14.1 z), + 80 g (2.8 z) per additinal meter Same as HC2-IM1xx but with 430 mm barrel length(16.9 thrugh wall installatin Weight with 2 m cable: apprx. 540 g (19.0 z), + 80 g (2.8 z) per additinal meter Same as HC2-IM1xx but with 580 mm barrel length(22.8 thrugh wall installatin Weight with 2 m cable: apprx. 680 g (24.0 z), + 80 g (2.8 z) per additinal meter Nte: HC2-IM1 (120 mm barrel length) - t avid measurement errrs due t temperature gradients fully immerse the prbe barrel in the envirnment t be measured

10 Page 10 f 29 Measurement in cmpressed air cnduits and vessels (fixed installatin) Fr use with transmitters and data lggers HC2-IE102 HC2-IE105 Temperature limits at sensr C ( F) 400 bar / 5800 PSI Prbe cable length.: 2 m (6.5 ft) r 5 m (16.4 ft) Barrel: stainless steel Filter base (SP-MSB15). Filter cartridge t be rdered separately Weight with 2 m cable: apprx. 290 g (10.2 z), + 80 g (2.8 z) per additinal meter HC2-IE302 HC2-IE305 Temperature limits at sensr C ( F) 400 bar / 5800 PSI Prbe cable length.: 2 m (6.5 ft) r 5 m (16.4 ft) Barrel: stainless steel Filter base (SP-MSB15). Filter cartridge t be rdered separately (see Accessries) Weight with 2 m cable: apprx. 290 g (10.2 z), + 80 g (2.8 z) per additinal meter Nte: T avid measurement errrs, temperature shuld be the same n bth sides f the munting wall

11 Page 11 f 29 3 General descriptin 3.1 Pwer supply The accuracy specified fr the HC2 prbes is valid nly when the prbe is supplied with a vltage within the range f 3.3 VDC ± 0.1 VDC. The prbes are tested and adjusted at the factry using a supply vltage f 3.3 VDC. As explained belw, it is generally nt advisable t pwer the HC2 prbes with a vltage ther than 3.3 VDC ± 0.1 VDC: Prbe mdels with a length f cable between the sensrs and electrnics (HC2-IC, HC2-IM, HC2-IE, etc.) will exhibit large measurement errrs when pwered frm a vltage surce ther than 3.3 VDC ± 0.1 VDC All ther prbe mdels tlerate a supply vltage within the range f 3. prbe mdel and n the cnditins f the applicatin, pwering the prbe with a vltage higher than 3.4 VDC can deterirate measurement accuracy due t self-heating f the prbe. When a vltage surce f 3.3 VDC is nt available, the prbe shuld be used tgether with a vltage adapter (see separate dcument E-M-HC2-accessries) s as t prvide 3.3 VDC t the prbe. Use f a vltage adapter allws pwering the prbe frm a vltage surce f 5 t 24 VDC r 5 t 16 VAC. During start-up the typical current cnsumptin f the prbe is initially 8 ma during 2ms and 5 ma during the next 2s. Withut a pwer supply limiter, the start-up current may reach a maximum f 50 ma. After start-up the current cnsumptin is n average less than 3 ma. Randmly distributed current spikes f maximum 1 ma are nrmal during peratin and are caused by the prbe micr-prcessr and assciated cmpnents. The HC2 prbes are plarity prtected by a keyed cnnectr. There is n electrical plarity prtectin. 3.2 Measured parameters The HC2 prbe measures relative humidity with a ROTRONIC Hygrmer IN1 capacitive sensr and temperature with a Pt100 RTD. 3.3 Calculated parameters Using the ROTRONIC HW4 sftware, the HC2 prbe can be cnfigured by the user t calculate either the dew pint r the frst pint. 3.4 Analg utput signals efault factry settings are as fllws: Output 2 = Using the ROTRONIC HW4 sftware any utput signal can be made t crrespnd ne f the fllwing: Relative humidity Temperature Dew r frst pint Any utput can als be disabled. The scale f each analg utput can be set within the numerical limits f and If s desired, any utput can als be disabled (n signal).

12 Page 12 f 29 The D/A cnverters used t generate the analg utput signals feature a 16-bit reslutin. utput signals exhibit a small psitive ffset f 3 mv r less at 0 V. Minimum lad requirements apply t the external device r circuit cnnected t the prbe vltage utputs. chapter Nte: users wh require an prbe t ne f the available transmitters. either cntact ROTRONIC r cnnect the 3.5 Digital interface The HC2 prbe features a UART interface (Universal Asynchrnus Receiver Transmitter) that allws twway cmmunicatin with the prbe. Fr cnnecting the HC2 prbe t a PC, use any f the fllwing digital adapter cables AC3001, AC3002 r AC3005 (see dcument E-M-HC2-accessries). The prbe can als be indirectly cnnected t a PC using an instrument frm the ROTRONIC prgram. The UART interface allws tw-way cmmunicatin with the prbe. The ROTRONIC HW4 sftware (versin r higher) allws full access t the fllwing: Measurement data (humidity and temperature) and calculated parameter (dew r frst pint) Prbe infrmatin: name, RS-485 address, humidity sensr status, etc. Prbe alarm functins Prbe data lgging functin Prbe calibratin and prbe adjustment functins Prbe cnfiguratin Cmmunicatin prtcl ptins The prbe measurement data can be read withut having t use the ROTRONIC HW4 sftware. Starting with firmware versin 1.3, the HC2 prbe ffers the fllwing cmmunicatin prtcl ptins (ASCII) which can be selected by cnnecting the prbe t a PC running the ROTRONIC HW4 sftware (versin r higher): RO-ASCII: this is the standard (default) cmmunicatin prtcl used by all AirChip 3000 devices and by the HW4 sftware. In principle, this prtcl supprts all f the AirChip 3000 functins but sme f the functins require a certain amunt f cmputatins t be carried ut by an external device such as a PC. Custm: this cmmunicatin prtcl can be used t prvide cmpatibility f the HC2 prbe with an existing cmmunicatin system. The Custm cmmunicatin prtcl is limited t reading measurement data frm the HC2 prbe. Functins such as device cnfiguratin, humidity and temperature adjustment, etc. are nt supprted. The Custm prtcl is applicable t all AirChip 3000 devices with a digital interface and allws RS-485 netwrking I2C: The I2C prtcl available with the HC2 prbe des nt allw the netwrking f devices and is limited t a ne way cmmunicatin where the HC2 prbe autmatically sends data during each refresh interval t an external device with I2C input. When using either the RO-ASCII r the Custm prtcl, the HC2 prbe can be set t send data autmatically after each refresh cycle withut requiring a data request. When this mde is enabled, the receiving device must be listening at all times in rder t get the measurement data. Fr details, see dcument E-M-AC3000-CP

13 Page 13 f Cnnectr All standard prbe mdels f the HC2 series use the same keyed cnnectr (male). The cnnectr is lcated either directly n the prbe bdy r at the end f a cable. The prbe cnnectr is secured t the matching female cnnectr with a threaded cllar. Pin-ut diagram Prbe cnnectr (7-pin male lking at prbe) Pin # Wire Clr Name Functin 1 Green VDD (+) 3.2 t 5 VDC 2 Grey GND Pwer and digital signal 3 Red RXD UART 4 Blue TXD UART 5 White Out 1 analg (+) 6 Brwn Out 2 analg (+) Temperature - C (default) 7 Yellw AGND Analg signal grund 3.7 Sensr prtectin (dust filter) Mst prbes f the HC2 series are supplied with a filter t prtect the sensrs against dust particles and high air velcity. Depending n the prbe mdel the fllwing types f filter materials are used: Material Maximum temperature Ntes Plyethylene 100 C (212 F) Recmmended filter material fr all applicatins belw 100 C. Gd respnse and gd prtectin against fine dust particles. N water absrptin r retentin Tefln 200 C (392 F) Gd prtectin against fine dust particles and salt (marine envirnments). Mderately slw respnse Stainless steel wire mesh Stainless steel sintered filter 200 C (392 F) Prvides fastest respnse time. Nt recmmended in envirnments with fine dust particles (clgging) and in biactive envirnments 200 C (392 F) Gd respnse at lw humidity levels. D nt use at high humidity levels. Prvides best prtectin against abrasive particles Nte: Depending n the prbe mdel, the dust filter is either autmatically included with the prbe r it must be rdered separately (see Mdels).

14 Page 14 f 29 4 User cnfigurable settings and functins The HC2 prbe ships cnfigured as per the factry defaults: Users wh intend t use the prbe as a stand-alne analg device can use the prbe as any cnventinal humidity and temperature prbe. A cnnecting cable with active electrnics may be required t pwer the prbe. Mst such users will never have t use the prbe cnfigurable settings and functins Users wh purchased a prbe fr use with anther ROTRONIC instrument can als use the prbe right away and d nt necessarily have t use the prbe cnfigurable settings and functins Users that intend t use the prbe as a stand-alne digital device typically need t use a cnnecting cable with active electrnics and generally need t cnfigure either the prbe r the PC Making use f the prbe cnfigurable settings and functins is entirely up t the user and the apprpriate settings depend n the user applicatin. We have prvided belw a shrt descriptin f the prbe functins and als indicated the factry default settings. 4.1 Functin verview MEASUREMENT ACCURACY AND RELIABILITY AirChip 3000 Functins Descriptin Humidity / temperature adjustment 1-pint r multi-pint humidity calibratin r adjustment 1-pint r 2-pint temperature calibratin r adjustment Generate a time stamp fr calibratins and adjustments Retain and view last adjustment date and adjustment values Generate calibratin and adjustment prtcls Autmatic humidity sensr test and ptinal drift cmpensatin Tests the humidity sensr fr drift caused by cntaminants and can be used t autmatically apply a crrectin. The test is autmatically carried ut at regular intervals f time. Can be cnfigured, enabled, r disabled Data recrding The humidity sensr status can be verified either with the HW4 sftware and is shwn as Gd, SQ-tuned (crrected fr drift) r Bad (defective) The data recrding functin differs frm a true data lgging functin in the sense that the AirChip 3000 des nt time stamp the data. This data recrding functin can be used t investigate events such as a sensr malfunctin as well as t retrieve data that wuld therwise be lst Start r stp data recrding - up t 2000 value pairs (%RH and temperature). Starting a recrding sessin erases all previusly recrded data The recrding mde and lg interval can be specified When the prbe is pwered ff, the recrding sessin is paused but nt ended As lng as the recrding sessin has nt been ended, the prbe autmatically resumes recrding data when pwered up again The recrded data can be dwnladed t a PC with the HW4 sftware, time stamped and viewed

15 Page 15 f 29 MEASUREMENT LOOP VALIDATION AirChip 3000 Functins Simulatr mde Descriptin Used t make the prbe generate fixed values fr the humidity, temperature and calculated parameter. Can be cnfigured, enabled r disabled SAFEGUARDS AirChip 3000 Functins Device write prtectin Descriptin Used t prtect the prbe with a passwrd t prevent unauthrized digital access by a digital user. Can be cnfigured, enabled r disabled PROCESS PROTECTION / PROTECTION OF OTHER DEVICES AirChip 3000 Functins Limit humidity utput t 100 %RH Out-f-limit value alarm Descriptin Used t prevent the humidity signal frm exceeding 100 %RH when cndensatin frms n the sensr. Can be enabled r disabled Used t specify the nrmal range fr humidity, temperature and the calculated parameter depending n the user applicatin. Can be cnfigured, enabled r disabled Bad sensr alarm Fail safe mde Out-f-limit values trigger a digital alarm Built-in functin. Cannt be disabled A bad humidity r temperature sensr triggers a digital alarm Used t specify a "safe" fixed value fr humidity and fr temperature in the event f a sensr failure. Can be cnfigured, enabled r disabled 4.2 Factry default settings Nte: Cnfiguratin f the prbe by the user and access t its functins requires a PC with the ROTRONIC HW4 sftware (versin r higher) installed. Fr cnnecting the HC2 prbe t a PC, use any f the fllwing digital adapter cables AC3001, AC3002 r AC3005 (see dcument E-M-HC2-accessries). Cnfigurable Settings system (Metric r English) Psychrmetric calculatin Output 1 parameter, scale and unit Factry default Metric Nne Output 2 parameter, scale and unit Temperature: - Cmmunicatin prtcl RS-485 address 0 Device name RO-ASCII Prbe type

16 Page 16 f 29 Functins Humidity / temperature adjustment Device write prtectin Limit humidity utput t 100 %RH Out-f-limit value digital alarm Data recrding Autmatic humidity sensr test Humidity sensr drift cmpensatin Fail safe mde Simulatr mde Factry default Disabled Enabled Disabled Disabled Disabled Disabled Disabled Disabled Fr a detailed descriptin f all AirChip 3000 / prbe main functins see dcument E-T-AC3000-DF-V1 Instructins regarding the cnfiguratin f the prbe and access t its functins are prvided in the fllwing manuals: E-M-HW4v3-Main E-M-HW4v3-F2-001 E-M-HW4v3-DR-001 E-M-HW4v3-A2-001 E-M-AC3000-CP.

17 Page 17 f 29 5 Mechanical installatin Nte: the fllwing instructins apply nly t the situatin where the HC2 prbe is fixed installed. 5.1 General guidelines fr fixed installatin Fr best results, please bserve the fllwing guidelines: Install the prbe at a lcatin where humidity, temperature and pressure cnditins are representative f the envirnment r prcess t be measured. Avid the fllwing: (a) Clse prximity f the prbe t a heating element, a cling cil, a cld r ht wall, direct expsure t sun rays, etc. (b) Clse prximity f the prbe t a steam injectr, humidifier, direct expsure t precipitatin, etc. (c) Unstable pressure cnditins resulting frm excessive air turbulence. When installing the prbe n a wall, d nt place the prbe right abve a heat prducing device f instrument such as a transmitter r an Ethernet adapter (warm air tends t rise). If pssible, chse a lcatin that prvides gd air mvement at the prbe: air velcity f at least 1 meter/secnd (200 ft/ minute) facilitates adaptatin f the prbe t changing temperature. When installing the prbe thrugh a wall, immerse as much f the prbe as pssible in the envirnment t be measured. Psitin the prbe s as t prevent the accumulatin f cndensatin water at the level f the sensr leads. Install the prbe s that the prbe tip is lking dwnward. If this is nt pssible, install the prbe hrizntally. Depending n the prbe mdel, a prbe hlder (munting flange with a cmpressin fit ting) can facilitate installatin thrugh a wall. Future maintenance can be made easier by prviding next t the prbe a calibratin access rifice. During maintenance, this permits the insertin f a reference prbe (calibratr).the calibratin access r ifice shuld have the same size as the rifice used t install the prbe and can be equipped with a prbe hlder.

18 Page 18 f 29 6 Electrical installatin Nte: the fllwing instructins apply nly t the situatin where the HC2 prbe is fixed installed. 6.1 General guidelines fr fixed installatin Pwer supply wiring Heavy machinery and instrumentatin shuld nt share the same pwer supply wiring. If this cannt be avided, nise filters and surge prtectrs shuld be used. Mst UPS devices have thse features al ready integrated. General guidelines fr signal cables The fllwing guidelines are derived frm Eurpean Standard EN fr the transmissin f signals by cpper wires. When planning an installatin, the rules prvided by EN shuld be fllwed under cnsideratin f lcal circumstances t determine the psitin f machines and equipment. All ROTRONIC HygrClip prducts are tested fr Electrmagnetic Cmpatibility accrding t EMC Directive 2004/106/EG and fllwing Eurpean standards: - EN : 2001, EN : EN : 2005, EN : A11 Whenever the level f electrmagnetic interference is expected t be high, bth the instruments and signal cables shuld be placed as far away as pssible frm the surce f interference. In general, signal cables shuld be installed in bundles r channels / cnduits, separate frm ther cables as indicated in the table belw: Bus signals such as RS485 Data signals fr PCs, printers etc. shielded analg inputs unshielded direct current (<= 60V) shielded prcess signals (<= 25 V) unshielded alternate current (<= 25V) caxial cables fr CRT mnitrs in cmmn bundles r channels / cnduits direct current frm 60 V t 400 V (unshielded) alternate current frm 25V t 400 V (unshielded) in separated bundles r channels / cnduits, withut minimum distance

19 Page 19 f 29 direct and alternate current > 400 V (unshielded) Telephne lines lines leading int EX-rated areas in separated bundles r channels / cnduits, withut minimum distance Lightning prtectin Cabling in areas with a risk f lightning requires a lightning prtectin. Fr cabling undergrund in between buildings, we recmmend the use f special fiber ptic cables. If this is nt pssible, use cpper cables that are suitable fr undergrund installatin. 6.2 Analg signal wiring Preferably use a shielded cable t cnnect the analg utputs f the HC2 t ther devices. The maximum cable length is determined by the maximum errr that the user will accept. This can be calculated as fllws: Errr (V) = cable resistance x current thrugh lad 6.3 Minimum analg utput lad 6.4 Digital signal wiring Use ne f the available cnnecting cables (see Accessries) t cnnect the UART digital interface f the HC2 prbe t ther devices. Withut a signal bster, the maximum cable length shuld nt exceed 5 m (16 ft). 6.5 Grunding In the case f a fixed installatin, grund the HC2 prbe, especially if the electrnics will be subjected t a lw humidity envirnment (35 %RH r less). The pwer supply and digital grund (GND) and the analg grund (AGND) shuld be tied separately t a prper grund s as t avid spikes in the analg signals. 7 Operatin 7.1 Operatin with an indicatr, data lgger r transmitter The HC2 prbes are cmpatible with a large number f indicatrs, data lggers and transmitters frm ROTRONIC. Operating instructins are prvided in each device manual. 7.2 Stand-alne peratin as an analg prbe The HC2 prbes can be used as a cnventinal analg prbe. See Accessries, supply vltage adapters, cnnectrs and cables. Use the HW4 sftware t cnfigure the prbe as desired, cmplete the mechanical and electrical installatin and pwer up the prbe.

20 Page 20 f Minimum lad requirements fr the prbe vltage utputs The fllwing requirements apply t any external device r circuit cnnected t the prbe vltage utputs: HC2 Vltage Output RL HFC2 utput signal Input resistance RL >=1kOhm GND In the situatin where the external device uses an internal pull-up resistr the value f this resistr shuld meet the requirements shwn belw. It is als necessary t add a pull-dwn resistr RL cnnected t grund in rder t be able t read 100% f the range f the prbe vltage utput. HC2 Vltage Output VCC R Pull-up RL HC2 signal VCC R pull-up RL 3.3V 250 kohm 1 kohm HC2 signal VCC R pull-up RL 5.0V 400 kohm 1 kohm HC2 signal VCC R pull-up RL 10.0V 1 MOhm 1 kohm GND

21 Page 21 f Stand-alne peratin as a digital prbe (PC r netwrk) The HC2 prbes can be cnnected t a PC r t an Ethernet netwrk with ne f the available digital interface adapters (see Accessries). Prbe cnfiguratin and full access t all prbe functins requires a PC with the ROTRONIC HW4 sftware installed. Starting with firmware versin 1.3, the prbes accept several cmmunicatin prtcls that allw users t read the measurement data withut the HW4 sftware. When using the standard RO-ASCII prtcl, access t sme f the prbe functins is als pssible withut HW4. Fr details, see dcument E-M-AC3000-CP. 7.4 Cnnectivity examples fr stand-alne prbes Digital cnnectin example: RS-485 netwrk Master E2-01XX-MOD 240 RS-485 device cnnectrs Adapter 240 Addr. 1 (T Cnnectin) USB r TCP/IP prt Slave HC2 prbe Addr. n Ntes: The master device can be either a transmitter such as the HF5 (USB r TCP/IP interface) r an adapter such as the AC3010 cable (USB) Pwer t the cmbinatin E2-01XX-MOD and HC2 prbe can be prvided by an individual AC adapter r by a central vltage surce cnnected t the RS-485 netwrk (requires cables with 2 twisted pairs: ne fr the data, the ther fr pwer)

22 Page 22 f 29 Analg cnnectin example: Vltage Surce r E2-01XX-ACT Vltage Adapter HC2 prbe Cable ended with pen wires 2 x analg signal Cntrller (r ther) 7.5 Hand-held prbes used with an indicatr The mst cmmn surce f errr when measuring relative humidity with a hand-held prbe is a difference between the temperature f the prbe and the temperature f the envirnment. At a humidity cnditin f 50 %RH, a temperature difference f 1 C (1.8 F) typically results in an errr f 3 %RH n relative humidity. When using a humidity prbe with a prtable indicatr, it is gd practice t mnitr the display fr temperature stability. When mving the prbe frm ne area t anther, the prbe shuld be given sufficient time t equilibrate with the envirnment t be measured. This time can be shrtened, and errrs avided, by using the prbe cnfiguratin that fits best fr yur applicatin. In extreme situatins, cndensatin may ccur n the sensrs when the prbe is clder than the envirnment. As lng as the humidity / temperature limits f the humidity sensr are nt exceeded, cndensatin des nt alter the calibratin f the sensr. Hwever, the sensr has t dry ut befre it can prvide a valid measurement. Nn-mving air is an excellent insulatr. When there is n air mvement, surprising differences in temperature and humidity can nted ver shrt distances. Air mvement at the prbe generally results in measurements that are bth faster and mre accurate.

23 Page 23 f 29 8 Maintenance 8.1 Cleaning r replacing the dust filter Depending n the cnditins f measurement, the filter shuld be checked frm time t time. Crrded, disclred r clgged filters shuld be replaced. If the prbe has a remvable cartridge, simply replace the cartridge (leave the metal base n the prbe). If the prbe has a plastic sltted cap with a built-in filter element fllw these instructins: 1) Unscrew the filter frm the prbe and pull it straight away, in the alignment f the prbe, s as nt the catch the humidity and temperature sensrs. 2) Befre putting n a new dust filter, check the alignment f bth sensrs with the prbe. The wires that cnnect the sensrs t the prbe are very thin and bend easily. If necessary, crrect the alignment by tapping the sensr very gently with a smth bject such as a small plastic rd. D nt use sharp pliers r tweezers as this culd puncture the sensr and d nt pull hard n the sensr. 8.2 Peridic calibratin check Bth the Pt 100 RTD temperature sensr and assciated electrnics are very stable and shuld nt require any calibratin after the initial factry adjustment. Lng term stability f the ROTRONIC Hygrmer humidity sensr is typically better than 1 %RH per year. Fr maximum accuracy, calibratin f the prbe shuld be verified every 6 t 12 mnths. Applicatins where the prbe is expsed t cntaminants may require mre frequent verificatins. Calibratin and adjustment f the HC2 prbe can be dne with either a PC with the HW4 sftware installed (versin r higher) r with the HP23 hand-held calibratr. Fr cnnecting the HC2 prbe t a PC, use any f the fllwing digital adapter cables AC3001, AC3002 r AC3005 (see dcument E-M-HC2-accessries). Prcedure fr adjusting the HC2 prbe with the ROTRONIC HW4 sftware: Cnnect the HC2 prbe t the HW4 PC as explained in the HW4 manual E-M-HW4v3-Main Start HW4 sftware n the PC and search fr the HC2 prbe. (HW4 Main Menu Bar > Devices and Grups > Search fr USB masters r Search fr RS232 masters r search fr Ethernet masters, depending n the cnnecting cable). After finding the HC2 prbe with HW4, expand the device tree t see the HC2 prbe functins and select Prbe Adjustment. Fr further instructins see HW4 manual E-M-HW4v3-A Validatin f the utput signals transmissin If s desired, transmissin f the HC2 prbe utput signals can be validated by using the prbe simulatr functin. The HW4 sftware is required t enable and cnfigure this functin. When the functin is enabled the prbe generates digital and analg signals crrespnding t values specified by the user.

24 Page 24 f 29 9 Firmware updates Firmware updates will be available n the ROTRONIC website fr dwnlading. Firmware files are given a name that shws bth t which device the file applies and the versin number f the firmware. All firmware files have the extensin HEX. Fr cnnecting the HC2 prbe t a PC, use any f the fllwing digital adapter cables AC3001, AC3002 r AC3005 (see dcument E-M-HC2-accessries). Prcedure fr updating the firmware: Cnnect the HC2 prbe t the HW4 PC as explained in the HW4 manual E-M-HW4v3-Main Cpy the firmware update file frm the ROTRONIC website t the PC. Start HW4 sftware n the PC and search fr the HC2 prbe. (HW4 Main Menu Bar > Devices and Grups > Search fr USB masters r Search fr RS232 masters r search fr Ethernet masters, depending n the cnnecting cable). After finding the HC2 prbe, expand the device tree t see the HC2 prbe functins. Select Device Manager. In the Device Manager menu bar select Tls > Firmware Update. Fr instructins see dcument E-M-HW4v3-F2-001

25 Page 25 f Technical data 10.1 Specificatins General Device type Mechanical cnfiguratin Humidity temperature prbe See mdels Pwer supply and cnnectins Supply vltage (VDD) Recmmended supply vltage Supply vltage during factry tests and adjustment Supply vltage stability / ripple Nminal current cnsumptin HC2-IC, HC2-IM and HC2-IE: 3.3 V ± 0.1V 5 VDC ± 0% 3.3 VDC 3.3 VDC See System Accuracy, effect f VDD < 4.5 ma at VDD = 3.3 VDC 7.5 ma at VDD = 5 VDC Maximum start-up current unlimited < 50mA during 2µs Minimum start-up current Maximum current spike during peratin Plarity prtectin 8 ma during 2ms and 5 ma during 2s 1 ma during maximum 2µs Mechanical nly (keyed cnnectr) Humidity measurement Sensr Measuring range Measurement accuracy at 23 C with 3.3 VDC supply vltage Repeatability Lng term stability Sensr time cnstant ROTRONIC Hygrmer IN1 ±0.8 %RH (w. standard adjustment prfile) ±1.0 %RH fr mdels HC2-C04 and HC2-C05 (see als 10.3) 0.3 %RH < 1 %RH / year Typical 10 sec, 63% f a 35 t 80 %RH step change (1m/sec air flw at sensr) Temperature measurement Sensr Measuring range - Measurement accuracy at 23 C with3.3 VDC supply vltage Repeatability Lng term stability Sensr time cnstant Pt100 RTD, IEC 751 1/3 class B ±0.1 C ±0.3 C fr mdels HC2-C04 and HC2-C05 (see als 10.3) 0.05 C < 0.1 C / year Typical 4 sec, 63% f a step change (1m/sec air flw at sensr) Calculated parameters Psychrmetric calculatins Dew r frst pint (user cnfigurable) Start-up time and data refresh rate Start-up time 1.5s (typical) Data refresh rate 1.0s (typical) when nt calculating any parameter

26 Page 26 f 29 Cnfigurable analg utputs Output 1 Output 2 Factry default parameter Factry default scale Factry default parameter Can be made t crrespnd t any parameter Relative humidity Can be made t crrespnd t any parameter Temperature Factry default scale C Output 1 and Output 2 Signal type User cnfigurable scaling limits - Offset at 0 V + 3 mv (maximum) Ripple < 1.2 mv/x 2µs Shrt circuit tlerant Internal resistance Minimum external lad Deviatin frm digital signal Digital interface Interface type Organizatin Default cnfiguratin Yes Tlerance 3 % Baud rate cnfiguratin: Lgical levels Maximum cable length < ±1 mv frm t 1.0 V / + 2 mv frm 0.0 t V UART (Universal Asynchrnus Receiver Transmitter) Dialg, duplex Baud rate : Parity : nne Data bits : 8 Stp bits : 1 Flw Cntrl : nne N Lgical 0: < = 0.3V * VDD Lgical 1: > = 0.8V * VDD 5 m (16.4 ft) w/ signal bster Effect f VDD in the range 3.2 t 5.0 V (see nte belw) Temperature (digital) <0.05 C Humidity (digital) <0.25 %RH Analg signals <2mV (reference: digital value) Nte: fr mdels HC2-IC, HC2-IM and HC2-IE, VDD is limited t 3.3 V ± 0.1V General specificatins Husing material See Mdels Cllar material (cnnectr) Alu-Anticrdal (andized) Dust filter material See Mdels Prtectin grade IP 65 Physical dimensins See Mdels Weight See Mdels

27 Page 27 f 29 Cnfrmity t standards CE / EMC immunity Slder type FDA / GAMP directives EMC Directive 2004/108/EG: EN : 2001, EN : 2005 EN : 2005, EN : A11 Lead free (RHS directive) cmpatible Envirnmental limits Strage and transit - Operating limits at electrnics - Temperature limits at sensr Maximum humidity at sensr Maximum air velcity at prbe Critical envirnments See Mdels 100 %RH up t 80 C (176 F) 75 %RH at 100 C (212 F) 45 %RH at 125 C (260 F) 15 %RH at 150 C (302 F) 20 m/s (3,935 ft /min) Humidity sensr: as per DV Critical chemicals 10.2 Dew pint accuracy The HC2 prbes can be cnfigured t calculate either the dew pint r frst pint based n the measurement f relative humidity and temperature. The accuracy f this cnversin varies, depending n the humidity and temperature cnditins as shwn in the graph belw: Example -

28 Page 28 f Effect f cable temperature n the accuracy f prbes HC2-C04 and HC2-C05 Accuracy f the HC2-C04 and HC2-C05 prbes is affected by the temperature f the cable separating the sensrs frm the electrnics. Errr n humidity: Humidity measurement accuracy is specified at ±1.0 %RH when bth the humidity sensr and the cable are at 23 C. Depending bth n the value f temperature and n the expsed length f cable, the prbe exhibits a predictable errr (bias) as illustrated belw: Systematic errr as a functin f the length f cable expsed t temperature Cable Length [cm] -40 C -20 C 0 C 23 C 40 C 60 C 85 C Errr n temperature: Temperature measurement accuracy is specified at ±0.3 C when bth the temperature sensr and the cable are at 23 C. When the full length f the 2 meter prbe cable is expsed t temperature values within the range f -40 t 85 C, the additinal errr is limited t C. 11 Accessries and parts Fr accessries and parts such as the HW4 cnfiguratin sftware, extensin cables, adapter cables, calibratin accessries and spare dust filters, please see dcument E-M-HC2-accessries 12 Supprting dcuments Dcument File Name E-M-HC2-accessries Cntents Accessries and parts fr prbes, indicatrs and transmitters

29 Page 29 f 29 Dcument File Name E-T-AC3000-DF-V1 Cntents AirChip 3000 Descriptin and Main Functins E-M-HW4v3-DIR E-M-HW4v3-Main E-M-HW4v3-F2-001 E-M-HW4v3-A2-001 List f the HW4 manuals HW4 sftware versin 3: General instructins and functins cmmn t all devices HW4 sftware versin 3: HC2 prbe series Device cnfiguratin and AirChip 3000 functins HW4 sftware versin 3: Prbe Adjustment functin AirChip 3000 devices E-M-HW4v3-DR-001 HW4 sftware versin 3: Data Recrding Functin AirChip 3000 Devices E-M-AC3000-CP E-M-TCPIP-Cnf E-M-CalBasics E-T-HumiDefs AirChip 3000 Cmmunicatin Prtcl Cnfiguratin prcedures fr ROTRONIC devices with Ethernet (TCP/IP) interface Temperature and humidity adjustment basics Instructins fr using the ROTRONIC humidity standards Humidity Definitins Nte: All dcument file names have an extensin crrespnding t the dcument release number (example f a first release: E-M-HW4v2-Main_10). This extensin is nt shwn in the abve table. 13 Dcument releases Dc. Release Date Ntes _20 Apr. 11, 2009 Original release _21 Aug. 19, 2009 Added prbe mdel HC2-AW Crrected the specificatin f sme f the prbe materials _22 Jun. 18, 2010 Updated dcument t HW4 sftware v.3 _23 May 20, 2011 Mdified dimensinal specificatins f the HC2-C04 prbe _24 Jan. 6, 2012 Changed the factry default fr data recrding t disabled