3.2 Connecting the AC Adapter
41
3
Connect the power cord and the instrument to the supplied Model 9418-
15 AC Adapter, then plug the power cord into an outlet. When used with
the battery pack installed, the battery serves as an operating backup
supply in case of power failure, and the AC adapter otherwise has prior-
ity.
3.2 Connecting the AC Adapter
Before Connecting
• Use only the supplied Model 9418-15 AC Adapter input voltage
range is 100 to 240 VAC (with ±10% stability) at 50/60 Hz. To avoid
electrical hazards and damage to the instrument, do not apply
voltage outside of this range.
• Turn the instrument off before connecting the AC adapter to the
in
strument and to AC power.
• To avoid electrical accidents and to maintain the safety specifica-
tions of this instrument, connect the power cord only to a 3-con-
tact (two-conductor + ground) outlet.
If the AC adapter is used without the battery pack installed, be aware
that a power interruption lasting more than two cycles causes measure
-
ment to be interrupted and the instrument to turn off.
AC Adapter Connection Procedure
The output plug of the AC adapter should be oriented in one of the three directions shown
below while connected to the instrument. Otherwise, the plug may inadvertently disen-
gage.
Connect the power
cord to the inlet socket
on the AC adapter.
Rated supply voltage is 100 to 240
VAC, and rated supply frequency
is 50 or 60 Hz.
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2
Connect the output plug of the AC
adapter to the instrument.
Plug the power cord into the mains outlet.
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