Diodes Test - LIMIT 21 Manual Del Usuario

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Frequency and Duty Cycle measurement
(See fig 2)
1. Insert red test lead into the HzDuty%VΩ terminal and black test lead into the
COM terminal.
2. Set the rotary switch to HzDuty% position.
3. Push RELΔ button to select Hz or Duty Cycle. Displays shows Hz or %.
4. Connect the test leads across with the object being measured. The measured
value shows on the display.
Diode test
(See fig 2)
Use the diode test to check diodes, transistors, and other semiconductor devices.
The diode test sends a current through the semiconductor junction, and then
measures the voltage drop across the junction. A good silicon junction drops
between 0.5V and 0.8V.
To test a diode out of a circuit, connect as follows:
1. Insert red test lead into the HzDuty%VΩ terminal and black test lead into the
COM terminal.
2. Set the rotary switch to diode position.
3. Push select button to select diode function. Displays shows diode symbol.
4. For forward voltage drop readings on any semiconductor component, place the
red test lead on the component's anode and place the black test lead
on the component's cathode.
The measured value shows on the display.
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