21
Diode test
functions
Forward DC current is about 2.5mA
Reverse DC voltage is about 3V
Overload protection:600V
It displays the
approximate forward
voltage value of the
diode.
Continuity test
functions
Open circuit voltage is about
1V
Overload protection:6000V
The resistance is <30, the buzzer will
sound and the indicator light is green.
When the resistance >30 and <60, the
buzz does not ring, the indicator light is
red.
Maintenance
Clean
If there’s dust on the terminal or the terminal is wet, it may cause
measurement error. Please clean the instrument according to
the steps below:
1)
Switch off the power supply of the instrument, and remove
the test probe.
2)
Turn over the instrument and shake out the dust
accumulated in the input socket. Wipe the outer cabinet
with a damp cloth and mild detergent, do not use abrasive
or solvent. Wipe contacts in each input socket with a clean