15
DIODE TEST
WARNING:
To avoid electric shock, do not test any
diode that has voltage on it.
1. Set the function switch to
Ω
cap position.
2. Press the MODE button until the symbol appears in
the display.
3. Insert the black test lead banana plug into the negative (-)
jack (COM) and the red test lead banana plug into the
positive (+) jack (
Ω
).
4. Touch the test probe tips to the diode or semiconductor
junction you wish to test. Note the meter reading
5. Reverse the probe polarity by switching probe position.
Note this reading.
6. The diode or junction can be evaluated as follows:
A. If one reading shows a value and the other reading
shows OL, the diode is good.
B. If both readings show OL, the device is open.
C. If both readings are very small or 0, the device is
shorted.
NOTE:
The value indicated in the display during the diode
check is the forward voltage.
FREQUENCY MEASUREMENT
1. Set the function switch to the FREQ position.
2. Insert the black test lead banana plug into the negative (-)
jack (COM) and the red test lead banana plug into the
positive (+) jack (F).
3. Touch the test probe tips to the circuit under test.
4. Read the frequency in the display. The digital reading will
indicate the proper decimal point, symbols (Hz, kHz) and
