Remove Defective Transmitter; Disconnect Compact Type Transmitter - Siemens SITRANS FC720 Operating Instructions Manual

Coriolis c
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Dismantling of the defective transmitter
7. Disconnect the power cables from L/+ and N/- "power supply connection terminals".
8. Remove "Grounding screw for connecting grounding conductor".
9. Remove potential equalization from "Grounding terminal for potential equalization".

19.1.3 Remove defective transmitter

After disconnection the transmitter has to be removed by unscrewing the four clamping
bolts.
Fig. 96: Removal of defective transmitter from the mounting bracket
The mounting bracket (U-bracket) remains for the installation of the spare transmitter.

19.1.4 Disconnect compact type transmitter

Life-threatening injuries from electric shock
WARNING
▶ Switch off power supply and communication.
▶ Secure against inadvertent switch-on.
After power down and breaking all power cable connections from L/+ N/- and grounding
Disconnecting
for the power circuit (except potential equalization connection of external grounding
power, communi-
terminal) the transmitter has to be disconnected by the following procedure:
cation and ground-
ing
1. Remove locking screw of the "Terminal box power and I/O connection" and remove
2. Disconnect the communication and I/O cables (avoid short circuit!).
3. Remove the cable gland and cable.
the back cover.
Grounding screw
A5E52748387-AA, 2023/09
FC7x0
Transmitter replacement
157 / 180

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Sitrans fc740

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