Flow vision FC 01- CA, User Manual

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TECHNICAL DATA
69
FC 01- CA | Flow Meter
9 .7 Sensor interface
9 .7 .1 Electrical data of the terminal for calorimetric monitoring heads
Terminal Mnemonics Data
XSK1 R(HEIZ)-LO Function: terminal for negative pole of heater element
Drain output of heating current control
Max. sink current: I
sink
= 88 mA
Dielectric strength: -0.5 V … +20 V DC
XSK2 R(HEIZ)-HI Function: terminal for positive pole of heater element
Hi-potential of heater source
Output voltage range (load dependent)
U
a
= 21 V … 24 V DC
Max. current output: I
max
= 100 mA
Not short-circuit proof
XSK3 R(Tref)-HI Function: terminal for positive RTD * pole for medium
temperature measurement
Input resistance: > 1 G
Ω
Dielectric strength: -17 V … +30 V DC
XSK4 R(Tref)-LO Function: terminal for negative RTD * pole for medium
temperature measurement
Input resistance: > 1 G
Ω
Dielectric strength: -17 V … +30 V DC
XSK5 AGND Function: analogue ground
Reference potential of exitation current source for
RTD * operation
XSK6 IS Function: output of exitation current source for
RTD * operation
Exitation current: 1 mA ± 1 %
Admissible load range: R
load
= 0 … 2 k
Ω
Dielectric strength: ±15 V DC
XSK7 SGND Function: shield ground
XSK8 Terminals for sensor cable shielding
XSK9 R(Tdiff)-LO Function: terminal for negative pole of the heated RTD *
Input resistance: > 1 G
Ω
Dielectric strength: -17 V … +30 V DC
XSK10 R(Tdiff)-HI Function: terminal for positive pole of the heated RTD *
Input resistance: > 1 G
Ω
Dielectric strength: -17 V … +30 V DC
* RTD =
R
esistive
T
emperature
D
evice