KROHNE BM 100A Handbook - Manual (Page 46)

46 Handbook BM 100 A
4.2.2 Basic Servicing – Replacing fuses and the electronics chassis
BM100 servicing by the customer is limited by warranty to the removal and
replacement of :
• the power supply fuse
• the electronics chassis.
Other repairs must be done by KROHNE-authorised service staff.
Removing the electronics chassis
Before changing the electronics chassis remember to save the current configuration
of the instrument :
• Note the settings on the configuration record supplied in appendix B or
• Save the settings in a *.dat file on PC-STAR. Press the F4 key to open a
directory.
Please follow these instructions carefully:
Step 1
Disconnect instrument from the power supply. If instrument is equipment category 1 /
2 GD (ATEX classification) or located in a Division 1 (US) area, please refer to
Supplementary Installation and Operating Instructions BM100 A / Ai KEMA 01 ATEX
1078X for more information.
Step 2
Remove back cover with supplied wrench.
Step 3
Unplug terminal blocks from electronics chassis.
Step 4
Remove the front cover with wrench. Step 5
Undo the 2 screws holding display on chassis.