Huazheng HZGC3521 Series, Manual

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Three-phase energy meter field calibrator
2.8 Mode of power supply
The instrument is provided with automatic and manual selection mode of power supply, which
are switched by
【
F4
】
key (switch from manual to automatic mode by pressing
【
F4
】
key)
When the instrument is in the automatic selection mode of power supply, the power mode
identifier is yellow; when it is in the manual selection mode of power supply, the power mode
identifier is red.
The automatic selection mode of power supply has three methods of power supply, that is,
adapter power supply, voltage terminal and battery power supply; when it is in the automatic
selection mode of power supply, the priority of the instrument’s mode of power supply is adapter
power supply, voltage terminal and battery power supply; when it is in the instrument’s manual
power mode, you can use
【 F4 】 key to force and select the terminal power supply or battery.
2.81 Battery power supply
When the battery power supply is manually selected for the instrument, the battery status
identifier at the lower right corner of the instrument screen is red battery icon (as shown on:
) press
【
F4
】
to switch to the terminal power supply.
When a mode of power supply is automatically selected, the battery status identifier at the
lower right corner of the instrument screen is yellow battery icon.