KROHNE CORIMASS G-MFM 4085 EN - Manual (Page 83)

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8.3 Change of operating voltage and power fuse F9
Always switch off power source before commencing work!
Remove electronics as described in Section 8.2.
8.3.1 Replacement of power fuse F9
The mains fuse F9 of the converter, sits on the power supply board beside the transformer, as
shown below.
The fuse will not blow, unless there was either a connection error or a fault in the converter
itself.
The table below shows the right fuse for the different voltages the converter could be set to. Do
not use any other than the specified type.
For position of fuses, see power supply board layout diagram.
Voltage Fuse F9
200,230/240 VAC 160 mA T
100,115/120 VAC 315 mA T
42,48 VAC 800 mA T
21,24 VAC 1.6 A T
The fuses should be in anti-surge type with a breaking capacity of 1500 A at 250 V AC.
For part numbers, see table under section 9, Order numbers.
8.3.2 Changing the operating voltage
1. Insert voltage select cable into the correct position on the power supply circuit board, to
obtain desired voltage.
2. If necessary, change fuse F9 to suit the new voltage. (See fuse table for values of F9)
IMPORTANT
If the operating voltage has been altered from the factory setting, ensure that the primary head’s
data plate and the label on the F9 fuse holder are amended accordingly.
Power supply layout