47
Checking Continuity (DT4252, DT4253, DT4255, DT4256)
3.4 Checking Continuity
(DT4252, DT4253, DT4255, DT4256)
The input short circuit is detected and informed via a buzzer and red
LED.
WARNING
Before measuring, be sure to turn off the power to the
measurement circuit. Otherwise, electric shock may
occur or the instrument may be damaged.
2
3
Red
Black
1
Detection Threshold Buzzer Red LED
Short circuit detection 25
Ω
±10
Ω
Sounds
(continuous
buzzer sound)
Turns on
Open detection 245
Ω
±10
Ω
Does not sound Turns off
A buzzer sounds before the red LED lights up.
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