3.1
SECTION 3 INSTALLATION - ELECTRICAL
3.1 Electrical power connection
Electrical power is connected to the chassis via an IEC appliance adaptor located on the rear
of the chassis (refer to Figure 1.1). The analyser will already be configured for the mains
voltage range ordered ('110 to 120V' or '220 to 240V').
The analyser should be connected to a clean, single phase electrical power supply meeting the
requirements of 'Installation category II', at a voltage within the range selected. The electrical
power supply should be fused at a value to protect the power cord. The UK power cord already
has a 5A fuse fitted for this purpose otherwise it is recommended that the electrical power
supply is fused at 6A.
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.
Should the user connect a different power cord to the one supplied, this must be wired in
accordance with national and local regulations. After wiring the power cord, check earth
continuity from the power connection earth to the functional earth on the rear of the chassis
(see Figure 1.1).
The voltage setting may be changed as follows. The fuse value must be changed when the
voltage setting is changed:
• Unplug the mains connector.
• Remove the voltage selector, a screwdriver may be used in the slot at the top of
the voltage selector to aid ejection.
• Rotate the voltage selector through 180° so that the required voltage is shown
at the bottom of the voltage selector.
WARNINGS
• The installer must be satisfied that the 4000 series analyser installation
conforms to the relevant safety requirements, National Electrical Code
and any other local regulations, and that the installation is safe for any
extremes of conditions which may be experienced in the operating
environment of the analyser.
• This appliance must be connected to a protective earth.
• The interconnecting cables used for all input, analogue output and serial
output should be screened or equivalent protection provided, and the
functional earth must always be connected to a local EMC ground.
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