Metrohm 750 Autosampler - Manual (Page 18)

2.3 Mains connection
750 Autosampler
15
2.3 Mains connection
Follow the instructions below for connecting to the power supply. If
the instrument is operated with the mains voltage set wrongly and/or
wrong mains fuse there is a danger of fire!
2.3.1 Check fuses
The selection of mains voltage (100, 120, 220 or 240 V) and mains fre-
quency (50 or 60 Hz) is made automatically by the 750 Autosampler
according to the mains voltage and frequency used. Nevertheless, be-
fore the 750 Autosampler is switched on for the first time a check
should be made as to whether the correct fuses for the intended mains
supply have been inserted in the instrument. Proceed as follows:
1 Disconnect mains cable
Disconnect mains cable from mains connection plug 14 14 of the
750 Autosampler (see Fig. 5).
2 Remove fuse cassette
Using a screwdriver, loosen fuse cassette 15 15 alongside the
mains connection plug 14 14 and take out completely.
3 Remove fuse holder
Lift up the spring clip on the upper side of fuse cassette 15 15 and
remove the fuse holder completely from the fuse cassette.
4 Check fuses
Carefully take the two fuses out of the fuse holder and check
their specifications:
100 … …120 V 2 A (rapid-action, with low rup-
turing capacity, 3AG)
230 … …240 V 1.25 A (rapid-action, with low rup-
turing capacity, 5 ××20 mm)
5 Insert fuses
Change fuses if necessary and reinsert in fuse holder.
6 Install fuse holder
Push the fuse holder into fuse cassette 15 15 until the spring clip
clicks into position.
7 Insert fuse cassette
Completely reinsert fuse cassette 15 15 in 750 Autosampler.