2 fuses, 3 mains cable and mains connection, 4 switching the instruments on/off – Metrohm 761 SD Compact IC User Manual

Page 37: Fuses, Mains cable and mains connection, Switching the instruments on/off, Figure 13, Setting the mains voltage, Ction 2.11.2, Figure 13 ) mat

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2.11 Mains connections

761 SD Compact IC / Instructions for Use 8.

761.1043

29

Figure 13: Setting the
mains voltage

2.11.2 Fuses

One of the two fuses 1 A/slow-blow for 100

120 V or 0.5 A/slow-blow

for 220

240 V is installed in the fuse holder 16 of the 761 SD Compact

IC as standard.

Ensure that the instrument is never put into operation with fuses of an-

other type; otherwise there is a danger of fire!

For checking or changing fuses, proceed as described in Section
2.11.1
.

2.11.3 Mains cable and mains connection

Mains cable

The instrument is supplied with one of three mains cables

6.2122.020 with plug SEV 12 (Switzerland,

)

6.2122.040 with plug CEE(7), VII (Germany,

)

6.2133.070 with plug NEMA 5-15 (USA,

)

which are three-cored and fitted with a plug with an earthing pin. If a dif-
ferent plug has to be fitted, the yellow/green lead (IEC Standard) must
be connected to protective earth (protection class 1).

Any break in the earthing inside or outside the instrument can make it

a hazard!

Mains connection
Plug the mains cable into the mains connection plug 15 of the 761 SD

Compact IC (see Figure 13).

2.11.4 Switching the instruments on/off

The 761 SD Compact IC is switched on and off using the mains switch
14. When the instrument is switched on, the mains pilot lamp 7 lights.

14

Mains switch

Switch for switching the instrument on

and off:

I = ON

0 = OFF

15

Mains connection plug

Mains connection, see Section 2.11.3

16

Fuse holder

220 - 240 V

100 - 120

V

220 - 240

V

100 - 120 V

100 – 120 V

220 – 240 V

14

15

16

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