Sensor Interface; Electrical Data Of The Terminal For Calorimetric Monitoring Heads - Flow vision FC 01- CA User Manual

9 .7 Sensor interface

9 .7 . 1 Electrical data of the terminal for calorimetric monitoring heads

Terminal Mnemonics
XSK1 R(HEIZ)-LO
XSK2 R(HEIZ)-HI
XSK3 R(Tref)-HI
XSK4 R(Tref)-LO
XSK5 AGND
XSK6 IS
XSK7 SGND
XSK8
XSK9 R(Tdiff)-LO
XSK10 R(Tdiff)-HI
* RTD = Resistive Temperature Device
FC01- CA | Flow Meter
TECHNICAL DATA
Data
Function: terminal for negative pole of heater element
Drain output of heating current control
Max. sink current: I = 88 mA
sink
Dielectric strength: -0.5 V ... +20 V DC
Function: terminal for positive pole of heater element
Hi-potential of heater source
Output voltage range (load dependent)
U = 21 V ... 24 V DC
a
Max. current output: I
max
Not short-circuit proof
Function: terminal for positive RTD * pole for medium
temperature measurement
Input resistance: > 1 GΩ
Dielectric strength: -17 V ... +30 V DC
Function: terminal for negative RTD * pole for medium
temperature measurement
Input resistance: > 1 GΩ
Dielectric strength: -17 V ... +30 V DC
Function: analogue ground
Reference potential of exitation current source for
RTD * operation
Function: output of exitation current source for
RTD * operation
Exitation current: 1 mA ± 1 %
Admissible load range: R
Dielectric strength: ±15 V DC
Function: shield ground
Terminals for sensor cable shielding
Function: terminal for negative pole of the heated RTD *
Input resistance: > 1 GΩ
Dielectric strength: -17 V ... +30 V DC
Function: terminal for positive pole of the heated RTD *
Input resistance: > 1 GΩ
Dielectric strength: -17 V ... +30 V DC
= 100 mA
= 0 ... 2 kΩ
load
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