KYORITSU 3321A, Instruction Manual

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5−3 Battery voltage check
(1) Set the Range switch to the BATT. CHECK position.
(2) Press the Test button or Remote control switch.
(3) If the meter pointer does not move to BATT GOOD, replace
the batteries as shown in Section 7 "Battery replacement".
CAUTION
Never keep the Test button pressed or locked during battery
check to avoid battery power drain.
5−4 Power-on-indication LED
On an insulation resistance range or BATT. CHECK range,
when the Test button or Remote control switch is pressed, the
power-on-indication LED (red) lights up, indicating the
instrument is in the operation mode.
Batteries have exhausted.
Replace the batteries. Proceed to measurement.
6−1 AC voltage measurement (Mains disconnection check)
The AC voltage measurement function is available on any
ranges.
(1) Connect the Earth probe to the earth of the circuit under test
and Line probe to the other side. If the circuit is not earthed,
connect Earth probe to any appropriate conductor.
(2) Without pressing the Test button or Remote control switch,
take the reading on the AC voltage scale.
６．Measurement