649-074
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Diode Testing:
1.
Connect the red test lead with
V
Ω
mA
and the black one with
COM
.
2.
Turn the rotary switch to
.
3.
Connect the red sensor with the anode and the black one with the cathode of the diode. These are
marked by colors.
4.
The diode must be dead-voltage.
5.
Now the display shows the value of the forward bias through the diode. This value can be between 0.6
V and 3 V normally.
6.
If the sensors are interchanged you can check the reverse-biasing of the diode. This means thee should
be no electricity at all and the display should show 1.
Durchgangsprüfung:
1.
Connect the red testing lead with
V
Ω
mA
and the black one with
COM
.
2.
Turn the rotary switch to .
3.
The circuit to be tested must be dead-voltage.
4.
Connect both test leads to two position pf the circuit to be tested.
5.
If the test current can pass the wire which means its electric resistance is less than 50
Ω
then you can
hear an acoustic signal provided by the integrated buzzer.
Operation:
•
Before you perform any measurement insert the three batteries. Release the screw of the battery
compartment on the backside. Switch the device off every time you exchange the batteries.
•
Plug the sensors in but pay attention which terminals you have to use. This depends on the type of
measurement you want to do. (For details see „The procedures of Measurement“)
•
Switch the device on by turning the rotary switch from OFF to a measuring range.
•
Precede the measurement as described under „The procedures of Measurement”.
•
After finishing the measurements switch the device back to OFF again.
