Owner's manual

2 Installation
762 IC Interface10
2.2 Mains connection
2.2.1 Mains voltage and fuses
The 762 Interface has a power supply which automatically adjusts itself
to the existing mains voltage (100…240 V) and frequency (50…60 Hz).
It is equipped with an electronic overload protection device and also
has two fuses; however, these should only be exchanged by Metrohm
service technicians.
2.2.2 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
different plug has to be fitted, the yellow/green lead (IEC standard)
must be connected to the earthing socket 77 (protection class 1).
Any break in the earthing inside or outside the instrument can make it
a hazard!
Plug the mains cable into mains connection plug 88 at the 762 IC Inter-
face (see Fig. 3 and Fig. 5).
2.2.3 Switching the instrument on/off
The 762 IC Interface is switched on and off using mains switch 11 (see
Fig. 2 and Fig. 4). When the instrument is switched on the mains pilot
lamp 22 lights up.