5.3. Resistance Measurements
1. Insert the black test lead into the negative
COM
terminal and the red
test lead into the positive
V/
Ω
terminal.
2. Set the function switch to the
Ω
position.
3. Press the
MODE
button until "
Ω
" appears in the display.
4. Touch the test probe tips across the circuit or component under test. It
is best to disconnect one side of the device under test so the rest of the
circuit will not interfere with the resistance reading.
5. Read the resistance measurement on the LCD display.
5.2. AC/DC Voltage Measurements
1. Insert the black test lead into the negative
COM
terminal and the red
test lead into the positive
V
terminal.
2. Set the function switch to the ACV or DCV position.
3. Connect the test leads in parallel to the circuit under test.
4. Read the voltage measurement on the LCD display.
5.4. Diode, Continuity and Capacitance Measurements
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the positive diode jack.
2. Set the function switch to the
Ω
position.
3. Press the
MODE
button until "
" appears in the display.
4. Touch the test probes to the diode under test. Forward voltage will
indicate 0.4V to 0.7V. Reverse voltage will indicate "
OL
". Shorted devices
will indicate near 0mV and an open device will indicate "
OL
" in both
polarities.
For Continuity tests, if the resistance is <50Ω, a tone will sound.
Red Black Black Red
Probe Probe Probe Probe
Forward test Reverse test
5.5. Capacitance Measurements
1. Set the rotary function switch to the
Ω
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 (V) jack.
3. Press the
MODE
button select capacitance measurement
4. Touch the test leads to the capacitor to be tested.
5. Read the capacitance value on the display
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.
9
