2 Installation
782 IC Column Thermostat
8
2.2
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!
2.2.1
Setting the mains voltage
Before switching on the 782 IC Column Thermostat for the first time,
check that the mains voltage set on the instrument (see
Fig. 3
) 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
12
of the
782 IC Column Thermostat.
2 Remove fuse holder
Using a screwdriver, loosen fuse holder
77
and take out com-
pletely.
3 Change mains voltage
Completely remove voltage selection insert
88
by hand, rotate it
through 180° and reinsert it. The required mains voltage (115 or
230 V) must now be visible from the front.
4 Check fuses
Carefully take both fuses out of fuse holder
77
and check their
specifications:
100
…
…
120 V
0.5 A (slow-blow)
Metrohm-No. U.600.0013
220
…
…
240 V 0.25 A (slow-blow)
Metrohm-No. U.600.0010
5 Insert fuses
Change both fuses if necessary and reinsert in fuse holder
77
.
6 Install fuse holder
Push fuse holder
77
back into the opening of the 782 IC Column
Thermostat by hand until it clicks into place properly.
