Repair, maintenance and servicing
6.3 Replacement of motherboard and optional board
OXYMAT 64
Operating Instructions, 06/2008, A5E00880383-03
107
6.3
Replacement of motherboard and optional board
The motherboard, optional board and adapter board can be easily replaced/retrofitted.
Removing/installing the motherboard
To remove, proceed as follows:
1.
Disconnect the device from the mains.
2.
Loosen the screws on the housing cover and remove it.
3.
Remove the data plug from the rear of the housing.
4.
Loosen the three screws which are between the SUB-D plug connectors on the rear of
the device.
5.
Disconnect the plug connectors of the ribbon cables from the motherboard.
6.
Carefully remove the motherboard.
To install the boards, carry out the same steps in the opposite order.
Removing the optional/adapter boards
The procedure is the same as for the motherboard. Unlike the motherboard, both the
optional and adapter boards are only fixed to the rear of the housing with two screws.
6.4
Replacement of fuses
WARNING
Make sure you disconnect the device from the mains before exchanging fuses!
Apart from this, the described requirements applicable to operator and maintenance
personnel apply.
The device is protected by two fuses against various influences (e.g. mains voltage, heat).
The fuses depend on various conditions (e.g. analyzer version, mains voltage).
The appropriate fuse ratings can be taken from the spare parts list.
Table 6- 1
Fuse ratings in Ampere
Voltage
Fuse rating:
200 to 240 V
0.63 T/250
100 to 120 V
1 T/250