User manual
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2.1 INTRODUCTION
The 1657 is configured, calibrated and tested prior to shipment. This
instrument is therefore ready for immediate use upon receipt. The initial
physical inspections should be made to ensure that no damage has been
sustained during shipment.
2.2 UNPACKING
Inspect the shipping container before accepting it from the carrier. If damage
to the container is evident, remove the instrument from the container and
visually inspect it for damage to the instrument case and parts.
If damage to the instrument is evident, a description of the damage should be
noted on the carrier's receipt and signed by the driver or carrier agent. Save all
shipping containers and material for inspection. Forward a report of any
damage to the factory or the agent through which the unit is procured.
Retain the original packing container if subsequent repackaging for return to
the factory were required. Repackaging is straightforward and is essentially
the reverse of the unpacking. Should only a sub-assembly need to be
repackaged for re-shipment, use the original containers.
Remove the Source module from its shipping container and inspect for any
damage to the front panel switches and display module. Check the rear of the
instrument for damage to Sockets, Fuse Holders and Terminals etc. Also check
for any optional parts, which have been ordered by you. If any of the part is
damaged or broken then DO NOT switch-ON the instrument.
Next, you MUST become familiar with the unit configuration.
2.3 INPUT POWER REQUIREMENTS
The Model 1657 is configured at the factory to operate from 90 to 264 VAC, 1 ะค
(phase), 47-63 Hz power line. The AC line input connector is type IEC320-C19.
CAUTION: THE AC SOURCE WILL BE DAMAGED IF IT IS OPERATED
AT AN INPUT VOLTAGE THAT IS OUTSIDE ITS CONFIGURED INPUT
RANGE.
FUSE
The AC power source uses a Type F 20 A fuse that is located in the fuse holder
at the rear panel of the unit. Please check the fuse before powering on the
instrument.










