Metrohm 752 Pump Unit - Manual (Page 12)

2.2 Mains connection
752 Pump Unit
9
10 10
12 12
15 15
230
11 11
115
Fig. 3: Setting the mains voltage
2.2.2 Fuses
Two fuses 0.2 A/slow-blow for 100 … 120 V or 0.1 A/slow-blow for
220 … 240 V are installed in the fuse holder 10 10 of the 752 Pump Unit as
standard.
Ensure that the instrument is never put into operation with fuses of
another type, otherwise there is danger of fire!
For checking or changing fuses, proceed as described in section 2.2.1.
2.2.3 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
different 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 mains connection plug 15 15 of the 752 Pump
Unit (see Fig. 3).
2.2.4 Switching the instrument on/off
The 752 Pump Unit is switched on and off using mains switch 12 12. When
the instrument is switched on lamp 33 lights up.
100 – 120 V 220 – 240 V
10 10 Fuse holder
11 11 Voltage selection
insert with display
of voltage
12 12 Mains switch
15 15 Mains connection
plug