KYORITSU 3126 - Manual (Page 14)

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6. Measurement
6-1 Mains disconnection check (Voltage measurement)
# DANGER
● Do not make measurement on a circuit in which the electric
potential exceeds AC/DC600V (voltage to ground) in order
to avoid getting electrical shock. In addition, do not use this
instrument when the voltage to ground is 600V or higher even
the line voltage is 600V or less.
● Ensure that a measurement is performed at the secondary side
of the circuit breaker when testing the voltages of power lines,
which has a large current capacity, in order to avoid possible
hazard to the user.
● Extra precaution shall be taken to minimize the possibility of
shorting the power line with the metal tip of test lead at voltage
measurement. It may cause personal injury.
● Do not start a measurement with the battery cover removed.
● Connect the Earth cord (black) to the Earth terminal of the
circuit under test.
Voltage can be measured by setting the Range switch on this
instrument to “V
AC/DC
” position. No need to press the Test button.
KEW3126 has an AC/DC auto-detect circuit and can measure
DC voltage as well. At DC voltage measurement, when applying
positive voltage to the Line Probe (red), positive value is displayed
on the LCD.
Ensure that the circuit breaker of the circuit under test is turned off.
(1) Connect the Earth Cord (black) to the earth
side of the circuit under test and the Line
Probe (red) to the line side respectively.
(2) Confirm that the voltage displayed on the
LCD is “Lo”. If the display doesn’t show
“Lo”, voltage is applied on the circuit
under test. Check the circuit under test
again and turn off the circuit breaker.