Changing Fuses - Siemens FIDAMAT 6 Operating Instructions Manual

6.2 Replacing the motherboard and option board
Removal and installation
of the motherboard
Removal of option board /
adapter board
6.3

Changing fuses

FIDAMAT 6 gas analyzer
Operating manual –A5E00222135-01
Replacing or installing the motherboard or option board is a simple
matter.
To remove the board, follow the following procedure:
•
Disconnect the analyzer from the power supply
•
Unscrew and remove the housing cover
•
Remove the data connector from the housing back panel
•
Undo the 3 screws which are located between the SUB D connectors
at the rear of the unit
•
Pull out the ribbon-cable plug-in connectors from the motherboard
•
Carefully remove the motherboard
The procedure is the same as for the motherboard. Unlike the
motherboard, only two screws are used in each case to fix the option
board and the adapter board to the unit back panel.
The reverse order of operations applies to installing the two boards.
Warning
Always disconnect the unit from the power supply before changing fuses!
Apart from this, the requirements applicable to operator and maintenance
personnel described in Section 1.6 will apply.
The unit is protected against various influences (for example, mains
voltage, heating) by several fuses.
However, should even just one mains fuse be defective, nevertheless
replace both of them!
To replace the temperature fuse, proceed as follows:
1. Disconnect the analyzer from the power supply
2. Remove the housing cover panel
Maintenance
6-3