KPSI Digitl Series User s Mnul KPSI 351, 353 & 355 KPSI 500 & 501 KPSI 380 Toll Free 800 745 8008 order online www.levelndpressure.com MARCH 2012
Tble of Contents Introduction...... 1 Product Introduction...... 2 Cbling nd Wiring...... 3 Instlltion...... 6 Opertion...... 7 Nomenclture...... 7 Setting the Address...... 8 Verifying the Address nd Opertion...... 9 Commnd (Functionl Overview)...... 9 Mking Mesurement...... 10 Strting non-concurrent mesurement (m[v] commnd)...... 11 Strting Concurrent Mesurement (C[v] commnd)...... 12 Mesurement commnd vritions...... 13 Other non-concurrent mesurements...... 14 Other concurrent mesurements...... 15 Chnging the Units...... 16 Setting user units...... 17 Configuring the Averging Time...... 18 Alphbetic Commnd Reference...... 19 Clibrtion...... 27 Troubleshooting nd Mintennce...... 28 Troubleshooting...... 28 Mintennce...... 29 Generl Mintennce Tips...... 29 Clogged nose piece or dirty diphrgm...... 29 Clening your trnsducer...... 29 Wrrnty nd Product Return Procedures...... 31 Wrrnty...... 31 Merchndise return procedures...... 31 1000 Lucs Wy, Hmpton, VA 23666 USA 1 of 32 1-800-745-8008
Introduction t h n k y o u f o r y o u r p u r c h s e The KPSI digitl line of wter level trnsducers offers ccurcy, verstility nd extensive fetures. You ve mde commitment to qulity. In return, we promise high level of service nd support to help you get the most from your investment in leding-edge environmentl monitoring instrumenttion. b o u t k p s i t r n s d u c e r s September 2010, Mesurement Specilties, Inc. (NASDAQ MEAS), globl designer nd mnufcturer of sensors nd sensor-bsed systems, nnounced the cquisition of Pressure Systems, Inc. ( PSI ). Mesurement Specilties will continue to develop, mnufcture nd service highly ccurte level mesuring instruments for environmentl pplictions. We re committed to consistently meeting nd exceeding our customers expecttions. w e b s i t e n d e - m i l You cn visit our website t www.mes-spec.com for informtion on our ltest product releses, ppliction notes, product specifictions nd certifictions, nd IS control instlltion drwings. We lso welcome your questions nd comments nd strive to reply promptly. Plese e-mil us t pvs.cs.mer@mes-spec.com. t e c h n i c l s u p p o r t While this mnul provides extensive guidnce for everything from setup through mintennce, we understnd tht there s nothing like getting n expert on the phone to provide quick nswers nd help ddress chllenges for your prticulr ppliction. If you hve questions concerning ny of our products, cll (757) 766-1500 or 1-800-328-3665 Mondy through Fridy between 730.m. nd 530 p.m. Estern Stndrd Time. o r d e r i n g p r o d u c t s n d c c e s s o r i e s For your convenience, orders my be plced on-line by visiting our e-commerce website, www.levelndpressure.com. You cn lso contct our Customer Service deprtment t 1-800-328-3665 or contct your locl Mesurement Specilties representtive. Expedited shipping is vilble. Mnul Content Disclimer This user s mnul ws prepred for the current firmwre nd softwre releses t the time of the mnul publiction. While this document is believed to be thoroughly relible, Mesurement Specilties ssumes no libility for inccurcies. Addend will be distributed s deemed necessry by Mesurement Specilties. All computer progrms supplied with your products re written nd tested on vilble systems t the fctory. Mesurement Specilties ssumes no libility for other computers, lnguges, or operting systems. Mesurement Specilties reserves the right to chnge the specifictions without notice. Any questions regrding firmwre upgrdes my be ddressed to Applictions Engineering. Appliction softwre nd trnsducer firmwre revisions s well s mnul ddend my be obtined from www.mes-spec.com. 1000 Lucs Wy, Hmpton, VA 23666 USA 2 of 32 1-800-745-8008
Product Introduction The KPSI 500 Series, KPSI 350 Series, nd KPSI 380 Series re high ccurcy SDI-12 submersible trnsducers. The KPSI 500 nd 350 Series use isolted diphrgm pressure sensors tht re specificlly designed for use with hostile fluids nd gses. The sensor uses silicon pressure cell tht hs been fitted into stinless steel or titnium pckge with n integrl, complint stinless steel or titnium brrier diphrgm. The KPSI 380 Series incorportes highly ccurte nickel RTD sensor into fully welded 316L stinless steel constructed housing ssembly. Different user-instllble nose cps re vilble for the KPSI 500 Series trnsducer. The closedfce end cp with #8-32UNC-2B threded hole is best used where weights re required nd for those instlltions where users my encounter shrp, protruding objects. The open-fce end cp tht llows mximum contct with the liquid medi is idel for wstewter nd gresy pplictions where clogging of the sensor is concern. A high density piezometer screen my be inserted into specilly-drilled open-fce end cps should the user decide to completely cover the KPSI 500 Series trnsducer with soil or silt. Cbling nd Wiring Most instlltions using the trnsducer connect our polyurethne or Tefzel cble to junction box. From this junction box, users run their own cble to the required instrumenttion. Polyurethne is used for most pplictions while Tefzel is recommended for highly corrosive environments. The trnsducers re intended for pplictions with requirements tht include bttery-powered opertion with miniml current drin, low system cost, nd use of single recorder with multiple sensors ttched. It will ccommodte cble lengths between sensors nd recorder up to 200 feet. The vented cble termintion end is prepred t the fctory to eliminte future moisture migrtion down its length. It my be noticed where the led wires emerge from under the jcket, tht potting mteril plus shrink tube boot hve been dded. Every effort should be mde to leve this feture intct. Should the cble be longer thn is needed for your instlltion, it is recommended tht the excess length be ccommodted in service loop nd tht the potted end of the cble NOT be shortened. The cble ttched to your trnsducer is specificlly engineered for submersible pplictions. The outer jcket provides long term relibility under most conditions. The cble should be hndled crefully, however, s the jcket my be subject to cutting should it be rked over extremely shrp edges. To gurd ginst wter incursion should n indvertent cut Cbling nd Wiring. 1000 Lucs Wy, Hmpton, VA 23666 USA 3 of 32 1-800-745-8008
Most instlltions using the trnsducer connect our polyurethne or Tefzel cble to junction box. From this junction box, users run their own cble to the required instrumenttion. Polyurethne is used for most pplictions while Tefzel is recommended for highly corrosive environments. The trnsducers re intended for pplictions with requirements tht include bttery-powered opertion with miniml current drin, low system cost, nd use of single recorder with multiple sensors ttched. It will ccommodte cble lengths between sensors nd recorder up to 200 feet. The vented cble termintion end is prepred t the fctory to eliminte future moisture migrtion down its length. It my be noticed where the led wires emerge from under the jcket, tht potting mteril plus shrink tube boot hve been dded. Every effort should be mde to leve this feture intct. Should the cble be longer thn is needed for your instlltion, it is recommended tht the excess length be ccommodted in service loop nd tht the potted end of the cble NOT be shortened. The cble ttched to your trnsducer is specificlly engineered for submersible pplictions. The outer jcket provides long term relibility under most conditions. The cble should be hndled crefully, however, s the jcket my be subject to cutting should it be rked over extremely shrp edges. To gurd ginst wter incursion should n indvertent cut occur, we hve incorported n exclusive wter block feture immeditely beneth the jcket. This feture mkes the cble selfseling in ll but the most extreme cses. The cble is fully shielded, with the shield connected to the metl housing t the trnsducer end nd terminted in blue-insulted wire t the termintion end. The shield should lwys be terminted to good erth ground, unless the trnsducer is instlled in n re where electrolysis corrosion is known to be serious problem. Surge/lightning protection is offered s n option for your trnsducer. This is chieved through the use of two (2) seprte protectors. One is locted in 4-inch long housing extension ttched directly to the non-pressure-sensing end of the trnsducer. The other protector is locted t the surfce nd grounded vi DIN-ril or ground wire. Whether lightning protection is employed or not, the cble shield is left exposed (s mentioned previously) so tht the shield my be ttched to n erth ground. sdi-12 wiring Only three wires re needed to use the SDI-12 interfce. A fourth wire (cble shield blue) is dded for user convenience. 1. Seril dt (white) SDI-12 interfce between sensors nd dt recorders. 2. Ground (blck) Supply return nd erth ground. 3. Supply (red) This line is internlly regulted nd cn ccept 8-28 VDC. 1000 Lucs Wy, Hmpton, VA 23666 USA 4 of 32 1-800-745-8008
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Instlltion The trnsducers re designed for rugged use; however, they need protection from over-pressure nd shrp impct. They re designed to be used in verticl orienttion with the sensing diphrgm fcing downwrd. For gretest ccurcy, re-clibrtions should be performed with the trnsducer in this position. When lowering the trnsducer into liquid, penetrte the surfce slowly nd only to the depth necessry. Avoid dropping the unit from bove the surfce. Clen the trnsducer s surfce by rinsing it in mile detergent. Direct probing of the diphrgm or ttempts to remove protective screens will dmge the sensor nd void the wrrnty. Most users either suspend the trnsducer in perforted 1-inch or 2-inch PVC instrumenttion free well or ttch the trnsducer using our optionl ½-inch MNPT to rigid conduit. Some pplictions use our optionl mounting brcket (PN 49-06-00PC) to clmp the trnsducer to fixed object (i.e., wll, ldder, step). Alterntively, becuse our cble hs 200 pound pull strength, the trnsducer my be suspended without ny protective still well, mounting clmp, or supporting cbles. However, users often use our cble hnger. This sensor (device) slides onto the cble from the bre wire end. The cble hnger my be positioned nywhere on the cble by pushing the ends together. Once positioned, the cble hnger contrcts to provide snug grip. 1000 Lucs Wy, Hmpton, VA 23666 USA 6 of 32 1-800-745-8008
Opertion Your trnsducer ws shipped from the fctory preset to ddress 0 (zero), nd with the pressure units set to those requested in your order. However, if modifictions re required for your ppliction, you should fmilirize yourself with the steps nd commnds needed to lter the setup of the trnsducer. To issue commnds to the sensor vi SDI-12, you will need to connect it to dt recorder tht is cpble of issuing stndrd nd extended SDI-12 commnds. NOTE As the KPSI 380 Series is high ccurcy TEMPERATURE trnsducer, it does not currently support ny pressure mesurement or configurtion commnds. Nomenclture All commnds hve three components the sensor ddress, the commnd body, nd the commnd termintion. The sensor ddress is single chrcter nd is the first chrcter of commnd. In the exmples tht follow, it is usully the number 0 (the defult ddress s shipped from the fctory). The commnd body nd the responses re shown s combintion of upper nd lower cse letters. The upper cse letters re the fixed portions of the commnd the lower cse letters re the vribles or vlues. In the specific exmples, you will see tht the lower cse letters re replced with ctul numbers. All commnds re shown with n exclmtion point (!) s the commnd termintor. 1000 Lucs Wy, Hmpton, VA 23666 USA 7 of 32 1-800-745-8008
Setting the Address If you re using the sensor connected to common wiring with other SDI-12 sensors, you my need to chnge the defult sensor ddress. Otherwise, skip this section. A unique ddress ssigned to ech sensor is n bsolute requirement for multiple sensors to shre the sme wiring. When the dt recorder needs dt from prticulr sensor, it requests dt using prticulr ddress. Only the sensor with the mtching ddress cn reply. Two or more sensors with sme ddress replying will grble this reply. The fctory defult SDI-12 ddress (0) is best reserved only for single sensors operting lone on dedicted wiring. using the get/set sensor ddress commnds No other SDI-12 sensors connected to the system should be set to ddress 0 or to the desired sensor ddress. Hint If you do not know the ddress of prticulr sensor, first use the Get Unknown Address commnd to hve the sensor identify itself. Its syntx is s follows?! NOTE There cn be only one SDI-12 sensor connected to common wiring in order for the Get Unknown Address commnd to work. The SDI-12 commnd for chnging sensor s ddress is A (Set Sensor Address). An! Where is the current ddress of the sensor, n is the new SDI-12 ddress Vlid ddresses re 0 to 9, A to Z, to z. The sensor will issue reply messge in response to the commnd, if the commnd ws recognized. The messge will be the new ddress n. Note tht both commnds bove follow the SDI-12 stndrd of ending with! termintor. As n exmple, the following Set Sensor Address commnd would set the sensor ddress from 0 to 5 0A5! The sensor will respond with the new ddress, which is 5. Subsequently, the ddress cn be set to different ddress, 9 for exmple, by the commnd 5A9! 1000 Lucs Wy, Hmpton, VA 23666 USA 8 of 32 1-800-745-8008
Verifying the Address nd Opertion The tbles below re smple commnds nd responses for the KPSI500 Other models hve the sme response for their respective model. The sensor will respond with n identifying messge when it receives the Identify commnd I. The formt of the commnd is I! Where is the ddress for the sensor The sensor will reply with 13-KPSI---500---hhh-ssssss-vvv Where is SDI-12 ddress 13 is SDI protocol version (red 1.3) KPSI is Brnd Nme 500" is KPSI Model Number hhh is Hrdwre revision level ssssss is Sensor seril number (up to 8 chr.) vvv is Softwre version If you do not get reply, check the ddress setting for the sensor nd mke sure you use the proper ddress. Commnd (Functionl Overview) The commnds to set up nd operte the sensor re those defined by the SDI-12 specifictions Version 1.0, Version 1.1, Version 1.2, nd Version 1.3, plus extended commnds. Note ALL SENSOR COMMANDS ARE UPPER CASE. All commnds strt with single chrcter ddress nd end in n exclmtion point. The ddress is single chrcter with vlues 0 to 9, A to Z, or to z. Vlues re entered in the form of polrity sign (+ or -) followed by up to seven digits, including deciml point. The commnds re in ASCII nd ll the replies use printble ASCII chrcters followed by <CR> <LF>. The cse of the letters is importnt. An A is not the sme s n. The sensor replies to ll SDI commnds it supports. If the sensor receives commnd it does not support, no reply is mde. The reply (response) will hve one of three forms 0000 Where is sensor ddress nd 0000 indictes tht no further messge to be sent. 1000 Lucs Wy, Hmpton, VA 23666 USA 9 of 32 1-800-745-8008
tttn Where is sensor ddress, ttt is time (in seconds) sensor needs to mke the mesurement or process commnd, nd n is the number of dt vlues (limited to 9) tht my be fetched by the Get Dt ( D0 ) commnd when dt is redy. In this older form, the sensor responds second time with its ddress when the dt is redy (if ttt ws not 000). This second response is clled Service Request response. This formt is generted by older non-concurrent mesurement commnds (see M[v] commnds below) nd other older commnds. tttnn Where is sensor ddress, ttt is time (in seconds) sensor needs to mke the mesurement or process the commnd nd nn is the number of dt vlues tht my be fetched by the Get Dt ( D0 ) commnd when dt is redy. This newer response formt (in SDI Version 1.2 nd lter) does not generte the second Service Request response nd cn return lrger number of vlues ( nn ) limited to 99. This formt is generted by newer concurrent mesurement commnds (see C[v] commnds below). If you issued the Chnge Sensor Address commnd or the Identify commnd described in the previous sections, you lredy hve some experience with using commnds. There re other commnds vilble to mke mesurements, set the type of output units for the mesurements, perform specil scling of the mesurements, do field clibrtion, nd the like. The following sections describe the commnds by function. Mking Mesurement There re two clsses of mesurement commnds which will be referred to s Strt Non-Concurrent Mesurement ( M[v] ) commnds) nd Strt Concurrent Mesurement ( C[v] ) commnds). In the first clss the dt recorder issues the mesurement commnd nd then wits for the sensor to complete the mesurement before continuing the dt collection cycle. Only one sensor cn be ccessed t time nd mximum of nine prmeters cn be returned. With Version 1.2 of the specifiction, concurrent mesurements re permitted. With concurrent mesurement, the dt recorder cn request the sensor to tke mesurement, determine how long it will be until the sensor hs reding, nd then continue mking requests to other sensors on the SDI-12 bus. This wy, multiple sensors re tking mesurements concurrently. Once the mesurement time for sensor expires, the dt recorder polls tht sensor for its dt. 1000 Lucs Wy, Hmpton, VA 23666 USA 10 of 32 1-800-745-8008
strting non-concurrent mesurement (M[v] commnd) The originl commnd to tell the sensor to strt mesurement non-concurrently is M[v]! Where is the ddress chrcter, nd M[v] is Strt Non-Concurrent Mesurement commnd. An optionl digit v identifies commnd vritions. Most dt recorders will issue this commnd nd utomticlly hndle the reply to collect dt. You cn lso issue the commnd yourself. In reply, the sensor will respond with tttn Acknowledges it is from sensor with ddress, tht ttt seconds re required before the mesurement is completed, nd n vlues will pper in finl dt strem cquired. When the mesurement is complete, the sensor sends second response, clled Service Request Where Service Request response contins only, the ddress of the sensor. Note tht you still hve no dt from the sensor. To get dt, enter the Get Dt commnd to sensor Where is the ddress chrcter nd D0 is the commnd to retrieve mesured dt. Note The number zero follows D, not the letter O. Depending on the vrition of the commnd, the sensor will reply with one of these response formts v vu vvv Where is the ddress, v is dt vlue, nd u is n optionl units indictor. Both v nd u hve the formt of polrity sign (+ or -) followed by up to seven digits, including deciml point. Formt returned depends on the commnd vrition. The u indictes the units of the mesurement ccording to the following tbles 0 units re feet of wter 1 units re psi 2 units re kilopscl 3 units re cm of wter 4 units re meters of wter 5 units re mm of wter 9 units depend on user-entered scle fctors (slope nd offset). 1000 Lucs Wy, Hmpton, VA 23666 USA 11 of 32 1-800-745-8008
If the field clibrtion offset is non-zero, then one of the following vlues of u will be returned 10 units re feet of wter with non-zero field clibrtion offset 11 units re psi with non-zero field clibrtion offset 12 units re kilopscl with non-zero field clibrtion offset 13 units re cm of wter with non-zero field clibrtion offset 14 units re meters of wter with non-zero field clibrtion offset 15 units re mm of wter with non-zero field clibrtion offset 19 user units with non-zero field clibrtion offset (psi + field clibrtion offset) * user slope + user offset set by XE or XS set by XUU set by XUU If the unit hs hd its clibrtion modified t stndrds lb other thn t Mesurement Specilties, then the vlue returned for u will hve one hundred (100) dded to it. In other words, if the XC commnd hs been utilized to set the clibrtion scle fctor (slope) to other thn 1 or the clibrtion offset fctor to other thn 0, then 100 will be dded to the unit s indictor. Strting Concurrent Mesurement (C[v] commnd) The commnd to tell the sensor to strt concurrent mesurement is C[v]! Where is the ddress chrcter, nd C[v] is Strt Concurrent Mesurement commnd. An optionl digit v identifies commnd vritions. In reply, the sensor will respond with tttnn Acknowledges it is from sensor with ddress, tht ttt seconds re required before the mesurement is completed, nd nn vlues will pper in finl dt strem cquired. Note the 2-digit nn returned llows for lrger number of dt items to be returned in the eventul dt response (though not utilized by model 500 sensor). When the mesurement is complete, the sensor does NOT issue the second response, known s Service Request response, s did n M commnd. To request the dt you must enter the Get Dt commnd only fter the first response s estimted time for completion (ttt) hs expired Where is the ddress chrcter nd D0 is the commnd to retrieve mesured dt. Note the number zero follows D, not the letter O. As in ll of the other (non-crc) M nd C commnds, D0 commnd must eventully be issued to get the dt from the sensor. In its response, three dt mesurements nd CRC ppendge re returned s follows +3.14+2.718+1.414Ipz where ( Ipz ) is the three-chrcter CRC code ppendge. 1000 Lucs Wy, Hmpton, VA 23666 USA 12 of 32 1-800-745-8008
Depending on the vrition of the commnd, the sensor will reply with one of these response formts v vu vvv Where is the ddress, v is dt vlue, nd u is n optionl units indictor. Both v nd u hve the formt of polrity sign (+ or -) followed by up to seven digits, including deciml point. Formt returned depends on the commnd vrition. mesurement commnd vritions To enhnce the error detection cpbility in SDI-12 dt collection systems, vritions of the Strt Non-Concurrent Mesurement commnds (M, M1... M9) nd Strt Concurrent Mesurement commnds (C, C1,...C9) re vilble. One vrition requests tht the dt be returned with 16-bit Cyclic Redundncy Check (CRC) ppended. It dds C to commnd, such s MC, MC1, CC, or CC1 The number of mesurements returned in response is the sme s the mesurements returned for non-crc commnd, but with CRC ppendge following them. An exmple of such commnd follows MC! Where is the ddress chrcter, M is bsic commnd to mke mesurement, nd C is the dded commnd letter requesting CRC ppendge. The sensor might respond with 0053 Acknowledging it is t ddress nd indicting tht fter 5 seconds, three (3) mesurements will be redy to red with D0 commnd. When n M commnd mesurement is complete, the sensor responds with n extr Service Request response. Where is the ddress chrcter. 1000 Lucs Wy, Hmpton, VA 23666 USA 13 of 32 1-800-745-8008
As in ll of the other (non-crc) M nd C commnds, D0 commnd must eventully be issued to get the dt from the sensor. In its response, three dt mesurements nd CRC ppendge re returned s follows +3.14+2.718+1.414Ipz where ( Ipz ) is the three-chrcter CRC code ppendge. other non-concurrent mesurements The SDI stndrd llows for severl other mesurement commnd vritions, such s M1, M2, nd the like. The sensor supports the following ones M1! M2! M3! M4! M5! M6! M7! Mesure psi using fctory clibrtion. Does not pply user scling, field clibrtion, or offsets. Returns 1 vlue nd the units re fixed to psi. Mesure temperture (Celsius or Fhrenheit). This returns two vlues the temperture nd the units. The units will be 0 for Celsius nd 1 for Fhrenheit. Mesure scle fctors user slope, user offset, nd field clibrtion offset. Use this if you wnt to view user-entered vlues tht cn ffect the vlue returned. Mesure clibrtion lb slope nd offset. Use this if you wnt to view the clibrtion lb vlues tht cn ffect the vlue returned. This commnd requests high ccurcy PCB (printed circuit bord) temperture. For the KPSI 380 Series, this commnd requests the high ccurcy nickel RTD temperture. This commnd requests bttery voltge. This commnd combines M0 nd M2 for both pressure nd temperture. Remember to issue the D0 commnd fter the mesurement is complete (s signled by extr Service Request response), in order to retrieve the dt. 1000 Lucs Wy, Hmpton, VA 23666 USA 14 of 32 1-800-745-8008
other concurrent mesurements The SDI stndrd llows for other concurrent mesurement commnds, such s C1, C2, etc. The sensor supports the following optionl concurrent mesurements commnds C1! C2! C3! C4! C5! C6! C7! Mesure psi using fctory clibrtion. Does not pply user scling, field clibrtion, or offsets. Returns 1 vlue nd the units re fixed to psi. Mesure temperture (Celsius or Fhrenheit). This returns two vlues the temperture nd the units. The units will be 0 for Celsius nd 1 for Fhrenheit. Mesure user scle fctors user slope, user offset, field clibrtion offset. Use this if you wnt to view user-entered vlues tht cn ffect the vlue returned. Mesure clibrtion lb slope nd offset. Use this if you wnt to view the clibrtion lb vlues tht cn ffect the vlue returned. This commnd requests concurrent high ccurcy printed circuit bord (PCB) temperture. For the KPSI 380 Series, this commnd requests the high ccurcy nickel RTD temperture. This commnd requests concurrent bttery voltge. This commnd combines C0 nd C2 for both pressure nd temperture. Remember to issue the D0 commnd fter the mesurement is complete (fter estimted time for completion expires), in order to retrieve the dt. 1000 Lucs Wy, Hmpton, VA 23666 USA 15 of 32 1-800-745-8008
Chnging the Units As noted bove, ll Strt Mesurement commnds cn return the pressure in severl different units. The selection of the units is mde using the XUP commnd XUPnd! Where n is one of the selections from the following tble nd d is the signed (+) dt disply scling (number of digits to the right of the deciml point) pproprite to the new units. n Type Units Comments +0 ft of wter The conversion of feet of wter uses the fctor 2.3073 ft per psi. +1 psi Pounds per squre inch (defult conversion fctor = 1) +2 kp Kilopscl +3 cm of wter The conversion fctor is 70.3265 cm per psi. +4 m of wter The conversion fctor is 0.703265 m per psi. +5 mm of wter The conversion fctor is 703.265 mm per psi +9 user units The vlue hs units tht depend on the fctor entered using the XUU commnd. For exmple, the following commnd to sensor 0 0XUP+0+2! will specify the output to be in the defult units (feet of wter) with resolution of 2 deciml plces. The second prmeter (2 in the exmple) is optionl. If omitted, the scling is not chnged. 1000 Lucs Wy, Hmpton, VA 23666 USA 16 of 32 1-800-745-8008
setting user units If you wnt the sensor to red out in units other thn feet of wter, psi, kp, centimeters of wter, meters of wter, or millimeters of wter you will need to use the XUP commnd to set the units to 9, user units. When user units re selected, the softwre will use the eqution Output = psi * slope + offset Where slope nd offset re vlues you cn enter into the system. The XUU commnd is used to enter the user-defined scle fctors. The formt is XUUso! Where s is the signed slope nd o is the signed offset. For exmple, the following commnd will set the slope to 70.32 nd the offset to 0.0 for sensor 0, which re the proper vlues to convert the psi to cm of wter 0XUU+70.32+0! Similrly, the slope nd offset cn be set to ny vlues tht will produce the desired units. NOTE Remember tht both n XUU nd n XUP commnd re required for the sensor to report in user-defined units. field clibrtion The sensor my hve chnge in the clibrtion over time. The most common chnge is chnge in sensor zero (vlue red when the pressure is 0). The sensor hs two commnds tht cn be used to djust for this chnge in zero. The XE commnd llows direct setting of n offset which will be dded to the mesurement to compenste for this drift XEou! where o is the signed field clibrtion offset vlue with units u +0=feet, +1=psi, +2=kP, +3=cm, +4=m, +5=mm, nd +9=user units. For exmple, the commnd 0XE+0.02+0! would set the offset pressure of sensor t ddress 0 to 0.02 feet (u=+0). The other commnd used to set the offset is the XS commnd, nd it hs two forms. The first form cuses the sensor to mke pressure redings nd utomticlly compute new offset XS! use this form of commnd only if you vent the sensor to the tmosphere. 1000 Lucs Wy, Hmpton, VA 23666 USA 17 of 32 1-800-745-8008
Use the second form when the sensor is t stble known pressure. XSpu! where p represents the signed known pressure vlue nd u = signed units. For exmple, fter venting the sensor t ddress 0 to the tmosphere, the following commnd would cuse new offset to be computed 0XS! If the sme sensor ws under pressure nd stble t 4.65 feet of H 2 0, the following commnd would djust the offset to ensure the 4.65-foot offset 0XS+4.65+0! If the sme sensor ws under pressure nd stble t 5.00 psi, the following commnd would djust the offset to ensure the 5.00-psi offset 0XS+5.00+1! When the sensor hs completed self-clibrtion, the new offset is stored into memory. A response ttt1 is returned by ny of the bove commnd forms. It indictes tht commnd lst send to sensor t ddress will be complete in ttt seconds, nd one (1) vlue (offset in units of psi) will be returned in the response to subsequent D0 commnd. The offset cn lso be displyed t ny time using the M3 commnd. Remember The units for the displyed field clibrtion offset will be psi, regrdless of the units you used in the XSdu! commnd. Configuring the Averging Time setting the verging time The sensor supports user selectble verging time for SDI-12 redings. The time period in seconds is specified with the following commnd XTt! where t is the signed time in seconds The exmple commnd 0XT+10! will set the verging time to 10 seconds for sensor t ddress 0. 1000 Lucs Wy, Hmpton, VA 23666 USA 18 of 32 1-800-745-8008
Alphbetic Commnd Reference This section documents ll the commnds supported by the digitl trnsducer. All commnds re listed lphbeticlly in lrge tble with four (4) columns contining the following informtion Commnd Function Syntx Sensor Response 1-3 letter bbrevition (opertion code) for the commnd, functionl description of the commnd, complete rendering of the commnd s structure, description of the response(s) returned by sensor. Some commnds require nother specil Get Dt commnd ( D0 ) to follow them (immeditely or fter dely of ttt seconds, s indicted by prmeter in the min response). Also, some commnd responses generte min response, which is followed ttt seconds lter by second response clled the Service Request response. In both cses, stndlone colon () will indicte this required following reltionship between two commnds nd two responses. To void unnecessry repetition of frequently-used prmeter descriptions in the tble entries, ech occurrence of simple item lwys represents the ddress of the sensor. Also, ttt represents common prmeter of min response time in seconds until dt will be redy to red with following D0 commnd. All responses end with non-printble <CR><LF> chrcter pir, which is not shown in the tble. Commnd Function Syntx Sensor Response Acknowledge Active!? Get Unknown Address?! New in Version 1.2 of SDI- 12 spec. Note Sensor must be only sensor on SDI-12 bus when this commnd given. Otherwise, communictions collision occurs when multiple sensors respond. Ab Set Sensor Address Ab! b is new ddress b b is new ddress. Exmple 5A9! (sets previous ddress 5 to new ddress 9) 1000 Lucs Wy, Hmpton, VA 23666 USA 19 of 32 1-800-745-8008
C or C0 Strt Concurrent Pressure Mesurement fter which you must send the Get Dt commnd C! ttt02 02" is number vlues in D0" resp pu p is ± pressure vlue. u is signed units indictor. Units set by XUP commnd. If XUM + 1 commnd executed then ± temperture vlue nd units code (tu) lso ppended. C1 Strt Concurrent Fctory Pressure Mesurement C1! ttt01 01" is number vlues in D0" resp p (pressure in psi, the fctory clibrted vlue). p is ± pressure vlue (psi). C2 Strt Concurrent Temperture Mesurement C2! ttt02 02 is number vlues in D0 resp. tu t is signed temperture. u is units +0=Celsius nd +1=Fhrenheit. Use XUT commnd to set units. C3 Strt Concurrent Scle Fctor Mesurement C3! 00103 03 is number vlues in D0 resp. (user slope, user offset, nd field clibrtion offset) soc s is signed user slope. o is signed user offset (psi). c is signed field cl. offset (psi). C4 Strt Concurrent Stndrds Lb Scle Fctors Mesurement (clibrtion slope nd clibrtion offset) C4! 00102 02 is number vlues in D0 resp. so s is signed cl. slope. o is signed cl. offset (psi). 1000 Lucs Wy, Hmpton, VA 23666 USA 20 of 32 1-800-745-8008
C5 Strt Concurrent High- Accurcy Temperture C5! ttt02 02 is number vlues in D0 resp. tu t is signed temperture. u is units +0=Celsius, +1=Fhrenheit. Use XUT commnd to set units. C6 Strt Concurrent Bttery Voltge Mesurement C6! 00201 01 is number vlues in D0 resp. v v is signed bttery voltge. C7 Strt Concurrent Pressure nd Temperture Mesurement C7! ttt04 04 is number vlues in D0 resp putu p is ±pressure vlue, 1 st u is +units index. Units set by XUP commnd. t is ±temperture vlue, 2 nd u is +0=Celsius or +1=Fhrenheit. Use XUT commnd to set units. D0 Get Dt NOTE This commnd is only issued fter Strt Mesurement (vrious M[v] or C[v] ) commnd. It should not be issued until mesurement time (returned in response) hs expired (or extr Service Request response hs been received fter Strt Non-Concurrent Mesurement (vrious M[v] ) commnd is issued. Exmple 0D0! (Send Get Dt commnd to sensor 0 ) v or pu vu or putu or vv or vvv p is ± pressure vlue. t is ± temperture vlue. v is other non-specific vlue u is +units indictor (see pressure units tbles for D0 in Section 5.5). Exmple 0+10.23+0 If previous mesurement commnd ws n M or C bove exmple response would be the vu form nd would indicte tht the wter level of sensor 0 is t 10.23 feet. NOTE If ddress is returned lone with no dt nd unit vlues, this indicted tht there is no dt vilble. Either Strt Mesurement commnd ws not 1000 Lucs Wy, Hmpton, VA 23666 USA 21 of 32 1-800-745-8008
issued, the commnd ws borted by sending new commnd before the mesurement time expired, or n expected Service Request response ws not yet received. I Identify Sensor I! 13-KPSI---500---hhh-ssssss-vvv 13 Supports SDI Version 1.3 commnds KPSI Mnufcturer 500 Model number hhh Hrdwre revision ssssss Seril number vvv Softwre revision M or M0 Strt Non- Concurrent Pressure Mesurement M! ttt2 (Service Request response) 2" is number vlues in D0" resp pu or putu P is ± pressure vlue u is +units indictor. Use XUP commnd to set units. If XUM +1" commnd executed then ± temperture vlue nd units code (tu) lso ppended. M1 Strt Non- Concurrent Fctory Pressure Mesurement AM1! ttt1 (Service Request response) 1" is number vlues in D0" resp (fctory clibrted vlue lwys in psi) p p is ± pressure vlue (psi) M2 Strt Non- Concurrent Temperture Mesurement M2! ttt2 (Service Request response) 2" is number vlues in D0" resp tu t is signed temperture u is +units 0=Celsius, 1=Fhrenheit. Use XUT commnd to set units. 1000 Lucs Wy, Hmpton, VA 23666 USA 22 of 32 1-800-745-8008
M3 Strt Non- Concurrent Scle Fctor Mesurement M3! 0013 (Service Request response) 3" is number vlues in D0" resp (user slope, user offset, nd field clibrtion offset) soc s is signed user slope o is signed user offset (psi) c is signed field cl. offset (psi) M4 Strt Non- Concurrent Stndrds Lb Scle Fctor Mesurement M4! 0012 (Service Request response) 2" is number vlues in D0" resp (stndrds lb clibrtion slope nd clibrtion offset) so s is signed cl. slope o is signed cl. offset (psi) M5 Strt Non- Concurrent High-Accurcy Temperture M5! ttt2 (Service Request response) 2" is number vlues in D0" resp tu t is signed temperture u is +units 0=Celsius, 1=Fhrenheit. Use XUT commnd to set units. M6 Strt Non- Concurrent Bttery Voltge Mesurement M6! 0021 (Service Request response) 01" is number vlues in D0" resp v v is the bttery voltge. M7 Strt Non- Concurrent Pressure nd Temperture Mesurement M7! ttt4 4 is number vlues in D0 resp putu p is ±pressure vlue, 1 st u is +units index. Units set by XUP 1000 Lucs Wy, Hmpton, VA 23666 USA 23 of 32 1-800-745-8008
commnd. t is ±temperture vlue, 2 nd u is +0=Celsius or +1=Fhrenheit. Use XUT commnd to set units. R0 R1... R9 Strt Continuous Mesurements (unimplemented) R0! R1!... AR9! Note ddress return indictes unimplemented commnd V Initite Verify Sequence V! 0013 (Service Request response) efg e is executed +1=YES, +0=NO f is +number unexpected interrupts g is +interrupt code Exmple +1 + 0 + 0 is norml XE Set Field Clibrtion Offset XEou! o is signed offset. u is units +0=feet of wter, +1=psi. 0011 (Service Request response) Service Request resp. returned in 001 seconds. 1 is number vlues in D0 resp o Exmple XE-0.05+0! (set offset to -0.05 feet) o = signed offset vlue (psi) XS Reclculte Field Clibrtion Offset XS! or XSdu! d nd u re optionl signed vlues. When omitted, sensor is ssumed to be vented to tmosphere. When supplied, d is desired reding for sensor nd in units indicted by u. The sensor will mke mesurement nd reclculte the field offset to ensure reding mtches vlues entered. ttt1 (Service Request response) Service Request resp. returned in ttt seconds. 1 is number vlues in D0 resp o o is new offset (psi). 1000 Lucs Wy, Hmpton, VA 23666 USA 24 of 32 1-800-745-8008
XT Set Averging Time XTt! t = +verging time in seconds (0 to 25) 0011 (Service Request response) Service Request resp. returned in 001 seconds. 1 is number vlues in D0 resp. s s = number smples to be verged during selected time XUM Set /Red Mesurement Mode of M/M0, C/C0, MC/MC0, CC/CC0 Commnds Drop optionl rgument [m] to Red mode XUM[m]! m=missing to red mode or m=+0 to set mode for pressure dt only (defult) or m=+1 to set mode for pressure dt nd temperture dt just like M7/C7/MC7/CC7 commnds ttt1 {Service Request response) Service request resp. returned in m seconds. 1 is number vlues in D0 resp. m m=+0 (Press.only) or m=+1(press. nd Temp) XUP Set Pressure Units XUPn[d]! n=+0 feet of wter n=+1 psi n=+2 kp n=+3 cm of wter n=+4 m of wter n=+5 mm of wter n=+9 user units [+d=optionl number of plces to right of the deciml point] 0012 (Service Request response) Service Request resp. returned in 001 seconds. 2 is number vlues in D0 resp NOTE Mke sure you use XUU commnd to set the slope nd offset for the desired user units. ud u is +units selected. d is +number of digits to right of deciml point. 1000 Lucs Wy, Hmpton, VA 23666 USA 25 of 32 1-800-745-8008
XUT Set Temperture Units XUTu! u =+0 Celsius u =+1 Fhrenheit 0011 (Service Request response) Service Request resp. returned in 001 seconds. 1 is number vlues in D0 resp u Exmple XUT+1! (Set units =Fhrenheit) u is +units selected. XUU Set User Units XUUso! s is signed user slope. o is signed user offset. User output = (psi) * user slope + user offset. Exmple XUU+27.63+0! (27.63 inches per psi) 0012 (Service Request response) Service Request resp. returned in 001 seconds. 2 is number vlues in D0 resp so s is user slope. o is user offset. NOTE A slope of 0 is invlid. NOTE Be sure units of pressure ( XUP ) re set to user units (9). 1000 Lucs Wy, Hmpton, VA 23666 USA 26 of 32 1-800-745-8008
Clibrtion The sensors undergo rigorous screening nd testing t the fctory before they re shipped, to ensure tht they meet their ccurcy specifictions over temperture. Any drift in the zero of the unit cn be esily checked by exposing the unit to tmosphere nd performing mesurement. Any drift cn be nulled out vi the XS commnd. For optimum ccurcy the offset drift should be nulled out t lest every 6 months. The therml clibrtion will remin ccurte for the life of the trnsducer. The KPSI 380 Series uses the stndrds lb clibrtion slope nd clibrtion offset coefficients during the engineering unit conversion. These coefficients cn be viewed using the M4! or C4! commnds, nd cn be djusted during trnsducer reclibrtion if desired. Contct the fctory for detils. 1000 Lucs Wy, Hmpton, VA 23666 USA 27 of 32 1-800-745-8008
Troubleshooting nd Mintennce troubleshooting The following checklist will help in troubleshooting problems PROBLEM POSSIBLE CAUSE Fulty wiring -- check ll wiring nd termintions No power -- check fuse in the dt recorder nd power t sensor. No dt Wrong ddress requested -- mke sure the dt recorder is set up to request dt t the proper ddress Wrong ddress set in sensor -- use the identify commnd to mke sure the sensor is responding to the proper ddress. Grbled dt Commnd or ddress is wrong cse -- ll SDI-12 commnds re cpitl letters. Mke sure ddress is proper cse nd commnds re upper cse. Multiple sensors set to the sme ddress -- check ddress settings of ll SDI sensors. Remove ll other sensors from the recorder nd dd them one t time. Communiction is defined to be 1200, E, 1. Commnd issued to wild crd ddress (* or?). Remove ll other sensors from the recorder nd try gin. Wrong units selected -- use the M commnd nd look t the units field. Verify tht the desired units re selected. Erroneous dt Erroneous offset entered -- disply the field clibrtion offset using the M3 commnd nd verify it. Re-clibrte the offset. Erroneous user slope nd offset entered -- disply the user slope nd offset using the M3 commnd nd verify. 1000 Lucs Wy, Hmpton, VA 23666 USA 28 of 32 1-800-745-8008
Mintennce Typicl mintennce for the sensor consists of checking the wiring to mke sure it is not corroded or fryed, checking the tmospheric vent tube to mke sure it is intct nd lek-free, nd checking or setting the field clibrtion offset. Mintennce should be performed t lest every 6 months, in order to insure tht the sensor meets the ccurcy specifictions. The offset cn be checked by venting the sensor to the tmosphere nd tking reding from the sensor. If the sensor hs been subjected to more thn its mximum pressure, the offset of the unit should be checked s described bove. Generl Mintennce Tips clogged nose piece or dirty diphrgm Either of these conditions could result in erroneous redings from your trnsducer. WARNING NEVER ttempt to clen your trnsducer s nose piece or diphrgm with ny object. This will dent the sensor diphrgm nd cuse permnent dmge to the trnsducer. Your trnsducer my be clened in ccordnce with the procedures listed in step 4, below. clening your trnsducer mterils required Mterils required Plstic bowls 8-12 inches in dimeter nd 4-6 inches deep Supply of clen, lint-free clening rgs 32 ounce bottle of The Works-Tub nd Shower Clener ( mild detergent) mnufctured by Lime-O-Sol Compny in Ashley, IN 46705 nd vilble loclly through Wl-Mrt, K-Mrt, Trget, nd Ace Hrdwre stores t $2 to $4 per bottle Preprtion Prior to clening your pressure trnsducer, ensure tht ll procedures hve been followed in the proper clening of the cble nd trnsducer to remove ny hzrdous mterils. The vent filter (or bellows) must be properly ttched. The cble should be coiled to ensure ese of hndling nd it must be protected ginst the possibility of ccidentl brsion nd/or penetrtion of the cble jcket by shrp objects. A led length of 1 to 1 ½ feet of cble from the trnsducer should be llowed to fcilitte hndling during clening. The protective covering (or similr protective device) tht is shipped with ech trnsducer should be ttched to the trnsducer t ll times. It should only be removed prior to instlltion or clening. Your work surfce needs to be clen nd free of clutter 1000 Lucs Wy, Hmpton, VA 23666 USA 29 of 32 1-800-745-8008
nd lrge enough to ccommodte ll mterils required in ddition to the trnsducer nd cble. Fill one of the bowls with fresh wter, one with mild detergent mixed with wter nd the lst with 16 ounces of The Works. clening Step 1 Holding the cble 6 inches from the trnsducer, immerse the unit in the bowl contining the mild detergent nd stir for 20-30 seconds. Remove nd rinse in the bowl contining the fresh wter, using the sme stirring motion used in the mile detergent. Rinse nd wipe dry. Step 2 Holding the body of the trnsducer with one hnd so tht you re looking t the retining screen protecting the sensor, crefully remove the sensor nose piece by simply unscrewing it from the sensor body. Do not touch the sensor diphrgm with your finger or ny other object. Also, do not try to dry the inside portion of the trnsducer, s you risk dmging the pressure sensor. Step 3 Plce the trnsducer in verticl position with the pressure sensing end fcing downwrd in the bowl contining The Works solution for pproximtely 15-20 seconds. Rinse in the bowl contining clen wter nd wipe dry the externl csing only. Plce the protective screen in the sme solution for 15-20 seconds, rinse nd wipe dry. Step 4 Holding the trnsducer in verticl position so tht you cn see the fce of the pressure sensor, screw the protective nose piece bck into plce. 1000 Lucs Wy, Hmpton, VA 23666 USA 30 of 32 1-800-745-8008
Wrrnty nd Product Return Procedures wrrnty Any trnsducer tht is less thn 2 yers old (see DOM) which does not meet the product s specifictions nd exhibits no physicl dmge to the housing, sensor, or cble (cuts), will be replced under wrrnty. Units 2-3 yers old Units tht fll within this ge group nd exhibit no obvious physicl dmge to the housing, sensor, or cble (cuts), re replced t discounted list price. Units greter thn 3 yers old Units tht fll within this ge group re not repired or replced under wrrnty. merchndise return procedures Contct the KPSI Applictions Engineer (1-800-328-3665 ext. 4398) if your trnsducer is not operting properly. The engineer will work with you to troubleshoot the problem nd, if necessry, forwrd you to the Customer Service Representtive to obtin Returned Merchndise Authoriztion (RMA). The stff is vilble for troubleshooting t (757) 766-1500 or toll free t 1-800-328-3665 during stndrd working hours, Estern time. Be prepred to supply the following informtion when requesting the RMA Trnsducer prt number Seril number Complete description of problems/symptoms Bill To nd Ship To ddress Purchse order number (not required for wrrnty repirs) Customer contct nd telephone number The bove informtion, including the RMA number, must be on the customer s shipping documents tht ccompny the equipment to be repired. We lso request tht the outside of the shipping continer be lbeled with the RMA number to ssist in trcking the repirs. All equipment should be sent to the following ddress ATTN KPSI TRANSDUCER REPAIR DEPARTMENT (7-digit RMA number) Mesurement Specilties 1000 Lucs Wy Hmpton, VA 23666 1000 Lucs Wy, Hmpton, VA 23666 USA 31 of 32 1-800-745-8008
NOTE Plese do not return equipment without obtining n RMA# from Customer Service. Prior to returning to Mesurement Specilties, the trnsducer nd cble must be clened per instructions provided on the clening certificte supplied when the trnsducer ws delivered. The certificte cn lso be found on www.mes-spec.com/ under the Qulity & Complince tb The completed certificte must ccompny the trnsducer when shipped to Mesurement Specilties. If the trnsducer hs been used in medi other thn potble wter, customer service must be notified t the sme time n RMA number is requested. Mesurement Specilties reserves the right to reject ny shipment deemed to be unsnitry or environmentlly unsfe to hndle. If these guidelines re not met, the pckge will be sent bck unopened nd t the customer s expense. Plese include the ttched vent filter or neroid bellow with ech returned trnsducer. Mesurement Specilties will return wrrnty items prepid vi UPS GROUND. If the customer desires nother method of return shipment, Mesurement Specilties will prepy nd dd the shipping chrges to the repir bill. Incoming freight chrges re the customer s responsibility. The customer is lso responsible for pying shipping chrges to nd from Mesurement Specilties for ny equipment not under wrrnty. Once the return is received, it typiclly tkes 5-10 working dys for the technicin to mke fult determintion. 1000 Lucs Wy, Hmpton, VA 23666 USA 32 of 32 1-800-745-8008
TM 1000 Lucs Wy, Hmpton, VA 23666 USA 757-766-1500, Toll Free 800-745-8008 Fx 757-865-8744 E-mil pvg.cs.mer@mes-spec.com www.mes-spec.com online orders www.levelndpressure.com