2.5 Supplying Power
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Chapter 2 Measurement Preparations
Connect the power cord to 8847 and plug it into an AC outlet.
Ground the instrument's functional earth.
When measuring in an electrically noisy environ-
ment, the effects of noise can be minimized by
grounding the Functional Earth terminals.
When using a potential transformer (PT) for AC
power line measurements or similar, the GND
terminal of the PT must also be grounded.
2.5 Supplying Power
2.5.1 Connecting the Power Cord
• When supplying power from an inverter or uninterruptible power supply (UPS),
ensure that the following requirements are met. If the rated power supply voltage
or frequency range is exceeded, or if a source with square wave output is used,
the instrument may be fatally damaged and an electrical accident may occur.
(1) Rated mains supply voltage is 100 to 240 VAC.
(2) Rated mains supply frequency is 50/60 Hz.
(3) Sine wave output (Do not use sources with unstable output)
• To avoid electrical accidents and to maintain the safety specifications of this
instrument, connect the power cord only to a 3-contact (two-conductor +
ground) outlet.
To avoid damaging the power cord, grasp the plug, not the cord, when unplug-
ging it from the power outlet.
Turn off the power before disconnecting the power cord.
1. Connect the power cord to the power
inlet on the instrument.
2. Plug the power cord into the mains outlet.
Connection Procedure
Right Side
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2.5.2 Grounding the Instrument’s Functional Earth
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