Major tech MT785, Инструкция по эксплуатации

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4.12. Diode Test
1. Set the rotary switch to the Ω CAP Position.
2. Insert the black test lead banana into the COM Input Jack; Insert the
red test lead banana into the Positive Input Jack.
3. Use the MODE Button to select the diode function if necessary (Diode
symbol will appear on the LCD when in Diode test mode).
4. Touch the test probe tips to the diode or semiconductor junction under
test, note the meter reading.
5. Reverse the test lead polarity by reversing the red and black leads, note
this reading.
6. The diode or junction can be evaluated as follows:
• If one reading displays a value (typically 0.400V to 0.900V) and the
other reading displays “ OL ”, the diode is good.
• If both readings display “ OL ” the device is open.
• If both readings are very small or “ 0 ”, the device is shorted.