Metrohm 790 Personal IC User Manual Page 28

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2.4 Mains connection
790 Personal IC
19
2.4 Mains connection
Follow the instructions below for connecting to the power supply. If
the instrument is operated with a mains voltage set wrongly and/or
wrong mains fuse, there is a danger of fire!
2.4.1 Setting the mains voltage
Before switching on the 790 Personal IC for the first time, check that the
mains voltage set on the instrument (see
Fig. 9
) matches the local
mains voltage. If this is not
the case, you must reset the mains voltage
on the instrument as follows:
1 Disconnect mains cable
Disconnect mains cable from mains connection plug
12
1212
12
of the
790 Personal IC.
2 Remove fuse holder
Using a screwdriver, loosen fuse holder
13
1313
13
below the mains
connection plug
12
1212
12
and take out completely.
3 Check and change fuse if necessary
Carefully take the fuse installed for the desired mains voltage out
of fuse holder
13
1313
13
and check its specifications (the position of the
fuse in the fuse holder is marked by the white arrow imprinted
next to the mains voltage range):
100
120 V
1.0 A (slow-blow)
Metrohm No. U.600.0016
220
240 V 0.5 A (slow-blow)
Metrohm No. U.600.0013
4 Insert fuse
Change fuse if necessary and reinsert in fuse holder
13
1313
13
.
5 Install fuse holder
Depending on the desired mains voltage, insert fuse holder
13
1313
13
in the 790 Personal IC so that the corresponding mains voltage
range can be read normally and the adjacent white arrow points
to the white bar imprinted below the fuse holder (see
Fig. 9
).
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