Metrohm 791 VA Detector - Manual (Page 14)

2 Installation
791 VA Detector
8
2.2 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!
2.2.1 Setting the mains voltage
Before switching on the 791 VA Detector 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 26 of the
791 VA Detector.
2 Remove fuse holder
Using a screwdriver, loosen fuse holder 12 and take out com-
pletely.
3 Change mains voltage
Completely remove voltage selection insert 13 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 12 and check their
specifications:
100 … 240 V 1 A (slow-blow) Metrohm-No. U.600.0016
5 Insert fuses
Change both fuses if necessary and reinsert in fuse holder 12.
6 Install fuse holder
Push fuse holder 12 back into the opening of 791 VA Detector
by hand until it clicks into place properly.