Operating Instructions
Temperature measurement
CombiTemp™
TFRH/N
RTD temperature sensor
TFRN with the following process connections:
G 1/2 A DIN 3852-E
G 1/2 A DIN 3852-A
R 1/2 ISO 7/1
1/2-14 NPT
9
Vessel and pipe are free of media
f
Seal thread on sensor with Te
fl
on tape (PTFE) if
connection does not include sealing ring.
f
Screw in sensor.
Tightening torque: 20 Nm
f
Check leak-tightness.
Mounting with a thermowell
The TFRN with a G 1/2 A connection can be mounted in a thermowell of type ZPT4 from Baumer.
9
Vessel and pipe are free of media
f
Seal thread with Te
fl
on tape (PTFE) on
thermowell if no seal is attached.
f
Screw in thermowell or tighten closure clamp.
f
Screw sensor into thermowell.
Tightening torque: 20 Nm
f
Ensure connection is tightened.
6. Electrical connection
6.1 External connections
9
A power supply of 8 … 35 V DC is provided
(with DFON display min. voltage is 14.5 V DC or
16.5 V
DC depending on background intensity)
f
Switch off power supply.
f
Connect sensor in accordance with the pin
assignment.
M12, 5-pin
M12, 8-pin
4
3
1
2
5
6
4
1
2
8
3
7
5
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