User Manual

6.8. Checking Diodes
The function lets you check diodes and other semiconductors for
opens and shorts. It also lets you determine the forward voltage
for diodes.
You can use this function when you need to match diode.
Follow these steps to check diodes:
1. Set the rotary selector to / /
.
))) position.
2. Plug the black test lead into the COM terminal and the red
test lead into the V/ terminal.
3. Connect the test leads to the diode to check and read the
display.
Notes:
* If you check a diode’s forward voltage, you will measure
voltage of approximately 0,7 V (Germanium) or 0.5 V (Silicon)
if the diode is not defective.
* If you reverse the test lead tips which means red to cathode
and black to anode, you checked the so called reverse
direction.
* If OL is displayed, it means the diode is open or above 2.0 V
forward voltage. However, if display shows a value between 0
V and approx. 2.0 v, it means a forward drop voltage.
* The meter supplies enough forward voltage to light most
LED’s. However, if the LED’s forward voltage is greater than
2.0 V, the meter incorrectly indicates that the device is open.
6.9. Checking Continuity
Continuity testing verifies that circuit connections are intact.
Warning!
Never perform a continuity checking on a circuit that has power
connected.
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