B&K Precision 1673 - Manual - Manual (Page 8)

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Retain the original packing in case subsequent repackaging for return is required. Use of
the original packing is essential.
After the mechanical inspection, verify the contents of the shipment. The items included
with the instrument are:
 Power cord
 Instruction manual
 Pair of test leads (x2)
If the contents are incomplete, or if the instrument does not pass the specification
acceptance tests, notify the local service center.
3.2 Input Power Requirements
The instrument can operate on 115 V or 230 V AC source at 50 or 60 Hz. The line selector
plug on the rear panel allows you to select the line voltage. Before connecting the power
plug to an AC line outlet, be sure to check that voltage selector plug is set in the correct
position corresponding to the line voltage in your location and the fuse rating is as shown
in the table.
Selector Line Voltage Fuse
115V 100 ~ 125V 50/60 Hz 6A (model 1672) 10A (model 1673)
230V 220 ~ 240V 50/60 Hz 3A (model 1672) 6A (model 1673)
Figure 1 – Fuse Table
3.3 Location
Before applying power to unit, make sure that input voltage setting is correct and the
ventilation holes are not blocked. Ensure that the ventilation fan located on the rear panel
is working well (it should turn on when powered on). Do not load the output if ventilation
fan is not working otherwise it may cause the power supply to overheat.