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K-type thermocouple distribution of the highest
measurement temperature of 250
4.16 Non-Contact Voltage Measurement（NCV)
Set the function range switch to the NCV range position.
At this time, the instrument displays "NCV" and "----"
symbols, and the top of the instrument is close to the object
to be detected such as the mains phase line, the power
switch and the outlet. When the voltage is detected to be
greater than 110V (AC RMS), the meter lights up the
corresponding signal strength indicator (high, medium and
low) according to the detected signal strength, and the
buzzer will give out alarm at different frequencies.
Note:
1) Even if there is no indication, the voltage may still exist.
Do not rely on non-contact voltage detectors to determine if
there is voltage on the shield. Detection operations may be
affected by socket design, insulation thickness and type of
different factors.
2) When the input voltage of the instrument input terminal,
due to the existence of induced voltage, the voltage sensing
indicator may also be bright.
3) Sources of external environment interference (such as
flash, motor, etc.) may falsely trigger non-contact voltage
detection.
5 Maintenance
5.1 Battery Replacement
To avoid false readings that could result in
electric shock or personal injury, replace the
battery immediately with the "
" symbol on the
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