beautypg.com

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

background image

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

16.

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

Figure 13).