Diode Test; Capacitance Measurements - Craftsman 82339 Owner's Manual

DIODE TEST

WARNING: To avoid electric shock, do not test any diode that has
voltage on it.
1. Set the function switch to
2. Insert the black test lead banana plug into the negative (COM) jack.
Insert the red test lead banana plug into the positive (V) jack.
3. Touch the test probe tips to the diode or semiconductor junction you
wish to test. Note the meter reading.
4. Reverse the probe polarity by switching probe position. Note this
reading.
5. The diode or junction can be evaluated as follows:
A. If one reading shows a value and the other reading shows "1", the
diode is good.
B. If both readings show "1", 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.

CAPACITANCE MEASUREMENTS

WARNING: To avoid electric shock, disconnect power to the unit
under test and discharge all capacitors before taking any capacitance
measurements. Remove the batteries and unplug the line cords.
1. Set the function switch to the highest CAP position.
2. Insert the black test lead banana plug into the negative (COM) jack.
Insert the red test lead banana plug into the positive (CAP) jack.
3. Touch the test leads to the capacitor to be tested.
4. Read the capacitance in the display and then set the function switch to
the lowest CAP position that is greater than the actual or any
anticipated capacitance. The display will indicate the proper decimal
point and value.
position.
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