Instruction Manual for ASHCROFT models including: K1 K2 K8 Pressure Transducer, K1 Pressure Transducer, K2 Pressure Transducer, K8 Pressure Transducer, Pressure Transducer, Transducer
Ashcroft K2 Pressure Transducer - BriceBarclay
Ashcroft K1 K2 K8 Pressure Transducer IOM I&M Manual - BriceBarclay
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DocumentDocumentK1, K2, K8 PRESSURE TRANSDUCER INSTRUCTION SHEET m WARNING! READ m BEFORE INSTALLATION 1. GENERAL: Afailureresultingininjuryordamagemay becausedbyexcessiveoverpressure, excessivevibrationorpressurepulsation, excessiveinstrumenttemperature,corrosionofthepressurecontainingparts,or othermisuse.ConsultAshcroftInc.,Stratford,Connecticut,USAbeforeinstallingif thereareanyquestionsorconcerns. 2. OVERPRESSURE: Pressurespikesinexcessoftherated overpressurecapabilityofthetransducer maycauseirreversibleelectricaland/or mechanicaldamagetothepressuremeasuringandcontainingelements. Fluidhammerandsurgescandestroyany pressuretransducerandmustalwaysbe avoided.Apressuresnubbershouldbe installedtoeliminatethedamaginghammereffects.Fluidhammeroccurswhen aliquidflowissuddenlystopped,aswith quickclosingsolenoidvalves.Surges occurwhenflowissuddenlybegun,as whenapumpisturnedonatfullpoweror avalveisquicklyopened. Liquidsurgesareparticularlydamagingtopressuretransducersifthepipe isoriginallyempty.Toavoiddamaging surges,fluidlinesshouldremainfull(if possible),pumpsshouldbebroughtupto powerslowly,andvalvesopenedslowly. Toavoiddamagefrombothfluidhammer andsurges,asurgechambershouldbe installed. Symptomsoffluidhammerandsurge's damagingeffects: ·Pressuretransducerexhibitsanoutput atzeropressure(largezerooffset). ·Pressuretransduceroutputremains constantregardlessofpressure ·Inseverecases,therewillbenooutput. FREEZING: Prohibitfreezingofmediainpressure port.Unitshouldbedrained(mountin verticalpositionwithelectricaltermination upward)topreventpossibleoverpressure damagefromfrozenmedia. 3. STATIC ELECTRICAL CHARGES: Anyelectricaldevicemaybesusceptible todamagewhenexposedtostaticelectricalcharges.Toavoiddamagetothetransducerobservethefollowing: ·Operator/installershouldfollowproper ESD(electrostaticdischarge)protection proceduresbeforehandlingthepressure transducer. Note:Theshieldanddrainwireinthe cable(ifsupplied)isnotconnectedtothe transducerbody,andisnotasuitable ground. MOUNTING Thetransducerrequiresnospecialmounting hardware,andcanbemountedinanyplane withnegligiblepositionerror. Althoughtheunitcanwithstandnormal vibrationwithoutdamageorsignificant outputeffects,itisalwaysgoodpracticeto mountthetransducerwherethereisminimumvibration. ForunitswithNPTtypepressurefittings applyteflontapeoranequivalentsealantto thethreadsbeforeinstalling. Whentightening,applyawrenchtothehex wrenchflatslocatedjustabovethepressurefitting. DO NOT tightenbyu singapipe wrenchonthehousing. POWER SUPPLY K1 Models Only Thesupplyvoltageforthe1-5and1-6Vdc outputtransducersmustbewithintherange of10to36Vdc.Themaximumsupplyvoltagefora4-20mAcurrentoutputtransducer is36Vdcwhiletheminimumsupplyvoltage isdependentupontheloopresistanceofthe circuit.Theloadlimitationchartshowsthe minimumsupplyvoltage(Vmin)requiredfora givenloopresistance(RLOOP). NOISE Forminimumnoisesusceptibility,avoid runningthetransducer'scableinaconduit thatcontainshighcurrentACpowercables. Wherepossibleavoidrunningthecablenear inductiveequipment. SHIELD WIRING Connectthebraidedshieldtotheguard terminalonthereadinginstrument(meter, etc.)ifavailableortogroundortothepower supplynegativeterminal. ADJUSTMENT POTENTIOMETERS Thezeroandspanpotsareaccessible throughthetopofthecase.Loosenthefour screwsandseparatethetopcarefully.The zeropotismarkedwithawhitedot. VENT TUBE ThecablewillhaveaclearTeflonventtube that'srequiredatpressurebelow500psito provideatmosphericreference.Theopen endshouldbeplacedinadryarea. OUTPUT K8 Only Sensitivitymaybefrom6mV/Vto18mV/V foranyindividualtransducer.Zerooffsetis within±3mV/V.Outputisproportionalto supplyvoltage(ratiometric). EXCITATION K8 & K2 Forproperoperationavoltagewithinthe rangeof5to10Vdcmustbeappliedbetweenthetransducer'ssupplyterminals. Load Limitations 4-20mA Output Only (R LOOP) 1182 1000 750 500 250 OPERATING REGION 0 0 10 20 30 36 Vmin=10V+(.022AxR L) RL=RS+RW RL =LoopResistance(ohms) RS =SenseResistance(ohms) RW =WireResistance(ohms) ©2012AshcroftInc.,250EastMainStreet,Stratford,CT06614,USA.Tel:203-378-8281·Fax:203-378-0499,Allspecificationsaresubjecttochangewithoutnotice. Allsalessubjecttostandardtermsandconditions.Allrightsreserved.www.ashcroft.com.I&M011-10063-1/01(250-2924).Rev.A7/12 K1, K2, K8 PRESSURE TRANSDUCER INSTRUCTION SHEET Wiring Diagrams for All Transducers + POWER SUPPLY RED (+ Power) WHITE (- Power) + GREEN (+ Output) BLACK (- Output) METER (Blue, K8 only) TRANSDUCER 4-Wire Ratiometric (mV/V) + POWER SUPPLY + METER (+ Power) (Common) (+ Output) TRANSDUCER 3-Wire Voltage POWER SUPPLY + (+) POWER + TRANSDUCER () OUTPUT METER 4-20 mA Dimensions NOTE: All dimensions are decimal inches K1, K2 Transducers 6-PIN BENDIX 0.9 SQ. ------------------4-PIN BENDIX 0.8 SQ. 3.0 3.0 .625 HEX K8 Transducers 0.5 0.5 0.34 1.1 2.1 .625 HEX K1 Transducers Electrical Connections Voltage Output Units 1-5, 1-6 Vdc CONNECTOR TYPE MATING CONNECTOR CABLE CODING Hirschmann Type PIN1 PIN2 PIN4 = +Power = Common = Output Red Black Green Bendix 4-Pin, 6-Pin PinA = +Power PinB = Output PinD = Common Cable Type F2 Red = +Power White = Common Green = Output Red Green White N/A Cable Type C1 Red =+ Power White = Common N/A Green = Output Current Output Units 4-20mA CONNECTOR TYPE MATING CONNECTOR CABLE CODING Cable Type F2 Red = +PowerN/A Black = Power Cable Type C1 Red = +PowerN/A Black = Power Hirschmann Type Pin-1 = +PowerRed Pin-2 = PowerBlack Bendix 4-Pin, 6-Pin PinA = +PowerRed PinB = Power Green K2 Transducers Electrical Connections K8 Transducers Electrical Connections Ratiometric (mV/V) CONNECTOR TYPE Cable Type F2 Red = +Power White = Power Green = +Output Black = Output MATING CONNECTOR CABLE CODING N/A Cable Type C1 Red =+ Power White = Power N/A Green =+ Output Black = Output Bendix 4-Pin PinA = +Power PinB = +Output PinC = Output PinD = Power Red Green Black White Bendix 6-Pin PinA = +Power PinD = Power PinB = +Output PinC = Output PinE = ShuntCal. PinF = ShuntCal. Red White Green Black Ratiometric (mV/V) Cable Type F2 Red = +Power White = Power Green = +Output Black = Output 4 Inch Leads Red* = +Power White = Power Green = +Output Blue = Output *Orange = +Power,RoHScompliant versions Special Wiring See "X" Variation On Unit Label Variation Wire Hookup Red = +Power XTQ Black = Common White = Output Red = +Power XTG Black = Common Green = Output Recalibration Instructions: 1. Apply 0% Full Scale Pressure. 2. Set the output using the Zero adjustment potentiometer. 3. Apply 100% Full Scale Pressure. 4. Set the output using the Span adjustment potentiometer. 5. Repeat steps 1 thru 4 as necessary. ©2012AshcroftInc.,250EastMainStreet,Stratford,CT06614,USA.Tel:203-378-8281·Fax:203-378-0499,Allspecificationsaresubjecttochangewithoutnotice. Allsalessubjecttostandardtermsandconditions.Allrightsreserved.www.ashcroft.com.I&M011-10063-1/01(250-2924).Rev.A7/12