iTEMP TMT162 Wiring
Endress+Hauser 15
5 Wiring
5.1 Connection conditions
L
CAUTION
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. → 24
2. Unscrew the housing cover on the connection compartment together with the O-ring.
→ 24. 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 → 5, 16 and as described in the sections:
"Connecting the sensor" → 15 and "Connecting the measuring device" → 17.
On completion of the wiring, screw the screw terminals tight. Tighten the cable glands
again. Refer to the information provided in the 'Ensuring the degree of protection' section.
Screw the housing cover tight again and fit the cover clamp back on. → 24
In order to avoid connection errors always follow the instructions in the post-connection
check section before commissioning!
5.2 Connecting the sensor
NOTICE
‣
ESD - electrostatic discharge. Protect the terminals from electrostatic discharge.
Failure to observe this may result in destruction or malfunction of parts of the
electronics.
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