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 R ange 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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