User Guide

Forhosing,werecommendusingpolyurethanetubing.Wehavehadgoodresults
with2.4mmIDtubingfromEmiplastics.com.Inimperialmeasurement,3/32”ID
tubingisequivalent.Thisisavailablethroughlaboratorysupplystoressuchas
ColeParmer.
Formulas
TheFormulatotranslateSensorValueintoPressureis:
Note:1.0kPa=0.145psi
OtherInterfacingAlternatives
Ifyouwantmaximumaccuracy,youcanusetheRawSensorValuepropertyfromthePhidgetInterfaceKit.Toadjustaformula,
substitute(SensorValue)with(RawSensorValue/4.095)IfthesensorisbeinginterfacedtoyourownAnalogtoDigital
ConverterandnotaPhidgetdevice,ourformulascanbemodifiedbyreplacing(SensorValue)with(Vin*200).Itisimportant
toconsiderthevoltagereferenceandinputvoltagerangeofyourADCforfullaccuracyandrange.
EachAnalogInputusesa3pin,0.100inchpitchlockingconnector.Picturedhereis
aplugwiththeconnectionslabelled.Theconnectorsarecommonlyavailablerefer
totheAnalogInputPrimerformanufacturerpartnumbers.
API
PhidgetanalogsensorsdonothavetheirownAPItheysimplyoutputavoltagethatisconvertedtoadigitalvalueand
accessedthroughthe"Sensor"propertiesandeventsonthePhidgetInterfaceKitAPI.Itisnotpossibletoprogrammatically
identifywhichsensorisattachedtotheAnalogInput.ToanInterfaceKit,everysensorlooksthesame.Yourapplicationwill
needtoapplyformulasfromthismanualtotheSensorValue(anintegerthatrangesfrom0to1000)toconvertitintothe
unitsofthequantitybeingmeasured.Forexample,thisishowyouwoulduseatemperaturesensorinaC#program: