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Operating Instructions
Temperature measurement
CombiTemp™
TFRH/N
RTD temperature sensor
Connector type
Output
Circuit
Pin
Function
M12, 5-pin
Pt100
(single element)
Pt100
11
11
12
12
1, 2 Pt100 11
3, 4 Pt100 12
5
n.c.
Pt100
(double element)
Pt100
11
12
Pt100
21
22
1
Pt100 11
2
Pt100 12
3
Pt100 21
4
Pt100 22
5
n.c.
4 … 20 mA
(2-wire)
4
«
20 mA
+Vs
Iout
1
+Vs
2
Common for relays 11, 21
3
Iout
4
Relay 22
5
Relay 12
M12, 8-pin
4 … 20 mA
(2-wire)
4
«
20 mA
+Vs
Iout
1
n.c.
2
+Vs
3
Relay 21
4
Relay 22
5
Relay 11
6
Relay 12
7
Iout
8
n.c.
If no common supply is used for both relays an M12, 8-pin connector is required.
Electrical connection with cable gland
9
Sensor is mounted
f
Screw in cable gland.
Tightening torque: max. 4 Nm
Cable gland type
Cable diameter
M16 plastic
5 … 10 mm
M16 stainless steel
5 … 9 mm
M20 plastic
8 … 13 mm
M20 stainless steel
9
… 13 mm
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