5320A
Users Manual
2-4
The calibrator is designed to be supplied by 230 or 115 V, 50 or 60 Hz ac power (mains).
It is a laboratory instrument whose parameters are guaranteed at 23 ±5 °C. Before
powering on the instruments, place it on a level surface. Do not cover the vents at the
bottom side and the fan opening at the rear panel.
Power Considerations
The Calibrator operates on varying power distribution standards found throughout the
world, and must be set up to operate on the correct line voltage that will power it. The
Calibrator is packed ready for use with a line voltage determined at the time of ordering.
If the selected line voltage does not match the power the Calibrator will be plugged into,
then the Calibrator’s line voltage setting must be changed and the line fuse replaced.
Power Cord
A power cord that will mate with the power receptacles found in the area to which the
Calibrator is shipped is included with each Calibrator. Table 2-2 lists the line power cords
used with the Calibrator.
XWWarning
To avoid shock hazard, connect the factory supplied three-
conductor line power cord to a properly grounded power outlet.
Do not use a two-conductor adapter or extension cord; this will
break the protective ground connection. If a two-conductor
power cord must be used, a protective grounding wire must be
connected between the ground terminal and earth ground
before connecting the power cord or operating the instrument.
After you verify that the line voltage selection switches are set to the correct positions,
verify that the correct fuse for that line voltage is installed. Connect the Calibrator to a
properly grounded three-prong outlet.
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