User ManUal - FlowVision GmbH

FC100-CA | Flow MeterTechnical DataGMBH7.5.3 Electronic control unit FC100-CATemperature drift:Warm up period until fullaccuracy is reached:0.1 %/K/MBE * (CSP-…)0.05%/K/MBE * (CSF-…, CST-…)5 minutes* MBE – of final value, ** MW – measured value, *** MB – measuring range1) Please enquire for higher accuracy.7.6 Sensor interfaceElectrical data of the terminal for calorimetric monitoring headsTerminal Mnemonics DataXSK1 R(HEIZ)-LO Function: terminal for negative pole of heater elementDrain output of heating current controlMax. sink current: I sink = 88 mAElectric strength: -0.5 V … +20 V DCXSK2 R(HEIZ)-HI Function: terminal for positive pole of heater element; hi-potentialof heater source; output voltage range (load dependent)U a = 21 V … 24 V DCMax. current output: I max = 100 mANot short-circuit proofXSK3 R(Tref)-HI Function: terminal for positive RTD * pole for mediumtemperature measurementInput resistance: > 1 GΩElectric strength: -17 V … +30 V DCXSK4 R(Tref)-LO Function: terminal for negative RTD * pole for mediumtemperature measurementInput resistance: > 1 GΩElectric strength: -17 V … +30 V DCXSK5 AGND Function: analogue groundReference potential of current source for RTD * operationXSK6 IS Function: output of current source for RTD * operationOutput current: 1 mA ± 1%Admissible load range: R load = 0 … 2 kΩElectric strength: ±15 V DCXSK7 SGND Function: shield groundXSK8Terminals for sensor cable shieldingXSK9 R(Tdiff)-LO Function: terminal for negative pole of the heated RTD *Input resistance: > 1 GΩElectric strength: -17 V … +30 V DCXSK10 R(Tdiff)-HI Function: terminal for positive pole of the heated RTD *Input resistance: > 1 GΩElectric strength: -17 V … +30 V DC* RTD = Resistive Temperature Device69