58
Checking the Electric Charge (DT4254, DT4255, DT4256)
3.11 Checking the Electric Charge
(DT4254, DT4255, DT4256)
Whether a power line is energized can be checked easily. If the
power line is energized, it is indicated via a buzzer and display. Use
this function for coated power lines. The detection may not be made
depending on the measurement conditions.
WARNING
To avoid electric shock, do not use the instrument
with test leads
fi
xed to the lead holders.
• To check the electric charge properly, do not use the instrument
with test leads wrapped around the instrument. The sensitivity
of electric charge detection deteriorates.
• Check that the detection function operates normally before use.
1
1
22
33
Hi
Lo
1
Select the measurement
function.
2
Move the instrument close to
the power line.
3
Switch the detection sensitivity.
When the detection level is exceeded, a
buzzer sounds and the red LED lights up.
Detection
sensitivity
Detection voltage range
Hi
40 V AC to 600 V AC
Lo
80 V AC to 600 V AC
(The position of the rotary switch varies
depending on the model.)
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