Electrical connection iTEMP TMT82
16 Endress+Hauser
5 Electrical connection
L
CAUTION
‣
Switch off the power supply before installing or connecting the device. Not conforming
with this can lead to the destruction of electronic components.
‣
Do not occupy the display connection. An incorrect connection can destroy the electronics.
NOTICE
Do not overtighten the screw terminals, as this could damage the transmitter.
‣
Maximum torque = 1 Nm (³⁄₄ lbf ft).
5.1 Connection conditions
A Phillips head screwdriver is required to wire the head transmitter with screw terminals. Use
a flat blade screwdriver for the DIN rail housing version with screw terminals. The push-in
terminal version can be wired without any tools.
Proceed as follows to wire a head transmitter mounted in the terminal head or field housing:
1. Open the cable gland and the housing cover on the terminal head or the field housing.
2. Feed the cables through the opening in the cable gland.
3. Connect the cables as shown in → 17. If the head transmitter is fitted with push-in
terminals, pay particular attention to the information in the "Connecting to push-in
terminals" section. → 21
4. Tighten the cable gland again and close the housing cover.
In order to avoid connection errors always follow the instructions in the post-connection check
section before commissioning!
Proceed as follows to wire the transmitter in a field mount housing:
1. Remove the cover clamp.
2. Unscrew the housing cover on the terminal compartment. The terminal compartment is
opposite the electronics module together with the display cover.
3. Open the cable glands of the device.
4. Route the appropriate connecting cables through the openings of the cable glands.
5. Wire the cables as described in the sections: "Connecting the sensor cables" and
"Connecting the transmitter". → 20, → 22
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