INSTALLATION
2-4
Connecting to supply
The instrument is a Safety Class 1 product and therefore must be earthed. Use the supplied power
cord or an appropriate replacement. Make sure that the instrument is plugged into an outlet socket
with a protective earth contact.
Ensure that the AC supply is correctly connected to the line power receptacle. For line power in
the range 100 to 240 V~, the PSU automatically selects the appropriate range. No manual
voltage-range selection is provided.
Disconnecting device
The detachable power cord is the instrument’s disconnecting device, but if the instrument is
integrated into a rack or system, an external power switch or circuit breaker is required. Whatever
the disconnecting device, make sure that you can reach it easily and that it is accessible at all
times.
Standby/on switch
The switch on the front panel is only a standby switch. It is not the line switch, which is on the
rear panel.
Fuse
For the AC voltage range of 100 to 240 V~ the fuse rating is T2AL250V. The fuse is a cartridge
type measuring 20 mm
× 5 mm.
The fuse-holder is integral with the rear panel’s 3-pin line power plug. To change the fuse, use a
screwdriver to lever out the holder.
Goods-in checks
The following goods-in check confirms that the instrument is functioning correctly, but does not
verify conformance to the listed specification. To verify that the instrument conforms to the
specification given in Chapter 1, refer to Chapter 6, ‘Operational verification testing'.
1 Ensure that the correct fuse is fitted (accessible on the rear panel) and connect the instrument
to the supply.
2 Switch on and check that the amber standby LED lights.
3 If the instrument appears to be completely dead, carry out the following:
Check that the mains power cord is providing power to the instrument.
Check that the mains fuse has not blown.
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