ITT IM213 Water Pump User Manual


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22
Troubleshooting
Red Light Codes (continued)
Flashes Controller Status Description
 3Blinks(contd.) -DisconnecttheWhitewireinthesensorcablefromterminal6.
  -SetthemetertoreadDCcurrent(mA)
  -Connecttheblackleadfromthemetertoterminal6 
  (TRANSDUCERINPUT)
  -ConnecttheredleadfromthemetertotheWhitewireinthe 
  sensorcable.
  -Themeterwilldisplaytheoutputofthesensor.Iffunctioning 
  properly,theoutputofthesensorwillbebetween4mAand 
  20mAdependingonthepressureinthesystem.Refertothe 
  chartbelowtodeterminethesensorfeedbackatvariouspressures.
  Thefollowingformulagivesthetransduceroutputbasedonapplied
  pressure:
Output Current =
Output Current Range
x System Pressure + 4mA
Pressure Range
  Where:
  •OutputCurrentisthetransduceroutput
  •OutputCurrentRangeisthemaximumoutputsignalofthe 
  transducerminustheminimumoutputsignalofthetransducer.In 
  thiscase:
  OutputCurrentRange=20mA–4mA,or16mA
  •PressureRangeisthepressurethatcorrespondstothemaximum
  outputsignal.Fora300PSItransducerthePressureRange= 
  300PSI–0PSI=300PSI
  •SystemPressureisthesystempressureasreadonthepressure 
  gauge.
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