Post-Installation Check; Wiring; Connection Conditions - Endress+Hauser iTEMP TMT162 Bedienungsanleitung

Wiring

4.3

Post-installation check

After installing the device, always run the following final checks:
Device condition and specifications
Is the device undamaged (visual inspection)?
Do the ambient conditions match the device specification (e.g. ambient temperature, degree of
protection, etc.)?
5 Wiring
5.1

Connection conditions

CAUTION
L
The electronics could be destroyed
‣
Switch off power supply before installing or connecting the device. Failure to observe this
may result in destruction of parts of the electronics.
‣
When connecting Ex-certified devices, please take special note of the instructions and
connection schematics in the Ex-specific supplement to these Operating Instructions.
Contact the supplier if you have any questions.
A Phillips head screwdriver is required to wire the field transmitter at the terminals.
NOTICE
Do not overtighten the screw terminals, as this could damage the transmitter.
‣
Maximum torque = 1 Nm (³⁄₄ lbf ft).
Proceed as follows to wire the device:
1. Remove the cover clamp. →  45
2. Unscrew the housing cover on the connection compartment together with the O-ring.
→  45. The connection compartment is opposite the electronics module.
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 in accordance with →  4,  37 and as described in the sections:
"Connecting the sensor" →  37 and "Connecting the measuring device" →  38.
On completion of the wiring, screw the screw terminals tight. Tighten the cable glands again.
Refer to the information provided in the ' E nsuring the degree of protection' section. Screw the
housing cover tight again and fit the cover clamp back on. →  45
In order to avoid connection errors always follow the instructions in the post-connection check
section before commissioning!
36
iTEMP TMT162
Notes
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→  33
Endress+Hauser