2.7
Figure 2.6 Fuse holder spring clips
operation fit fuse T3.15A HBC to IEC 127 ( Figure 2.4 ). Voltage selector
position 110/120V for 85 to 132 V operation fit fuse T5.0A HBC to IEC
127 ( Figure 2.5 ). If a 20mm fuse is used then ensure that the fuse does
not extend into the spring clips provided for a 1 inch fuse (see Figure
2.6).
Replace the voltage selector and mains connector.
If a loose IEC socket has been supplied this must be wired in accordance with national
and local regulations. The flexible power cord used should be rated as follows:-
Current 6 A
Voltage According to voltage setting
The analyser should be connected to a clean, single phase electrical power supply
meeting the requirements of ’Installation category II’ (IEC 664, see page 2.1), at a
voltage within the range selected. The electrical power supply should be fused at a
value to protect the power cord. It is recommended that the electrical power supply is
fused at 6A.
For compliance with EMC emissions and susceptibility standards - EN 50081-1 (1992),
and EN 50082-2 the EMC ground must always be connected to a local earth (see
Figure 1.1).
After wiring the power cord, check earth continuity from the power connection earth to
the EMC ground on the rear of the chassis (see Figure 1.1).
The user must ensure that when installed in a rack, cabinet or other fixture, the mains
switch is readily accessible or where this is impractical, the installation must be provided
with a separate means of disconnecting power which complies with the relevant local
and national standards.
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