Metrohm 788 IC Filtration Sample Processor - Manual (Page 19)

2.2 Mains connection
788 IC Filtration Sample Processor
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4 Insert fuse
Change fuse if necessary and reinsert in fuse holder 32 32 32 32.
5 Install fuse holder
Depending on the desired mains voltage, insert fuse holder 32 32 32 32 in
the 788 IC Filtration Sample Processor so that the corresponding
mains voltage range can be read normally and the adjacent
white arrow points to the white bar imprinted on the right side of
the fuse holder (see Fig. 3).
2.2.2 Fuses
One of the two fuses 0.5 A/slow-blow for 100}120 V or 0.25 A/slow-
blow for 220}240 V is installed in fuse holder 32 32 32 32 of the 788 IC Filtration
Sample Processor as standard.
Ensure that the instrument is never put into operation with fuses of
another type, otherwise there is danger of fire!
For checking or changing fuses, proceed as described in section 2.2.1.
2.2.3 Mains cable and mains connection
Mains cable
The instrument is supplied with one of three mains cables
x 6.2122.020 with plug SEV 12 (Switzerland, })
x 6.2122.040 with plug CEE(7), VII (Germany, })
x 6.2133.070 with plug NEMA 5-15 (USA, })
which are three-cored and fitted with a plug with an earthing pin. If a
different plug has to be fitted, the yellow/green lead (IEC standard)
must be connected to protective earth (protection class I).
Any break in the earthing inside or outside the instrument can make it
a hazard!
Mains connection
Plug the mains cable into mains connection plug 33 33 33 33 of the 788 IC
Filtration Sample Processor (see Fig. 3).
2.2.4 Switching the instrument on/off
The 788 IC Filtration Sample Processor is switched on and off using
mains switch 34 34 34 34.