KYORITSU 3127 - Manual (Page 16)

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5. Preparation for measurement
It is recommended to charge the battery with reference to “10.1 How to charge
battery” described in the manual before stating to use with the instrument since
the battery voltage may be low due to self-discharge.
5-1 Checking the battery voltage
(1) Set the Range switch to any position other than“OFF”.
(2) When the battery mark shown at the upper left on the LCD is last 1 level
,
the batteries are almost exhausted.
Charge battery to perform further measurements.
The instrument operates properly even in such a low battery power condition
and it may not affect the accuracy.
When battery mark is empty , the battery voltage is below the lower limit
of the operating voltage. In such a condition, the accuracy isn’t guaranteed.
Refer to“10.1 How to charge battery” and charge battery.
5-2 Connecting test leads
Insert the test lead firmly to the connector terminal on the instrument. Connect the
Line Probe(red) to the Line terminal, the Earth Cord(black) to the Earth terminal
and the Guard Cord(green) to the Guard terminal. (To establish guard is not
necessary, you do not have to connect the Guard cord.)
# DANGER
● Do not press the TEST button when the Range switch is at any position other
than “OFF”. High voltages are applied to the test leads and you may get
electrical shocks.