User's Manual

7ML19985FH01 Sitrans LR 400 – INSTRUCTION MANUAL Page 65
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Maintenance
Maintenance and repairs
Changing the device fuse
The device fuse is located on the power supply unit board.
Position of device fuse and electronics cover locking:
Change a defective fuse as follows:
1. Disconnect the device from the power supply.
2. If your device is in a pressure-tight housing, release the cover locking of the
electronics cover with an Allen key (see above).
3. Remove the electronics cover from the housing.
4. If your device has an optional operating and monitoring module, pull it out of the
front of the housing. Disconnect the plug of its cable from the socket and place the
operating and monitoring module on one side.
Warning: The device fuse must only be changed by qualified personnel
who are familiar with the installation, commissioning, and operation of
the SITRANS LR 400.
device fuse
electronics cover locking
Caution! Take care not to bend or damage any of the cables.
Touching the electronic circuit boards can damage sensitive parts.
chap8.fm Page 65 Tuesday, October 9, 2001 1:29 PM