11 mains connections, 1 setting the mains voltage, Mains connections – Metrohm 761 SD Compact IC User Manual
Page 36: Setting the mains voltage, Ction 2.11, N 2.11
2 Installation
761 SD Compact IC / Instructions for Use 8.
761.1043
28
2.11 Mains
connections
Next connect the 761 SD Compact IC to the electrical mains. Separat-
ing column and precolumn will not yet have been fitted. They are fitted
only after rinsing the new equipment components (see Section 2.15).
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!
2.11.1 Setting the mains voltage
Before switching on the 761 SD Compact IC for the first time, check that
the mains voltage set on the instrument (see Figure 13) matches the lo-
cal mains voltage. If this is not the case, you must reset the mains volt-
age on the instrument as follows:
1 Disconnect mains cable
Disconnect mains cable from mains connection plug 15 of the
761 SD Compact IC.
2 Remove fuse holder
Using a screwdriver, loosen the fuse holder 16 below the mains
connection plug 15 and take it out completely.
3 Check and change the fuse
Carefully remove the fuse installed for the desired mains voltage
out of the fuse holder 16 and check its specifications (the posi-
tion 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 the fuse if necessary and reinsert it in the fuse holder
5 Fit the fuse holder
Depending on the desired mains voltage, insert the fuse holder
16 in the 761 SD Compact IC so that the corresponding mains
voltage range can be read normally and the adjacent white ar-
row points to the white bar imprinted below the fuse holder (see