Metrohm 782 IC Column Thermostat - Manual (Page 12)

2.2 Mains connection
782 IC Column Thermostat
9
88
99
12 12
230
77
115
Fig. 3: Setting the mains voltage
2.2.2 Fuses
Two fuses 0.5 A/slow-blow for 100 … 120 V or 0.25 A/slow-blow for
220 … 240 V are installed in the fuse holder 77 of the 782 IC Column
Thermostat 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 12 12 of the 782 IC Col-
umn Thermostat (see Fig. 3).
2.2.4 Switching the instrument on/off
The 782 IC Column Thermostat is switched on and off using mains
switch 99. When the instrument is switched on the two temperature dis-
plays 55 and 66 light up.
100 – 120 V 220 – 240 V
77 Fuse holder
88 Voltage selection
insert with display
of voltage
99 Mains switch
12 12 Mains connection
plug