PDi CM-220, Инструкция по эксплуатации, Страница: 8 / 13

8
Resistance Measurements
1.
Insert the black test lead into the negative COM terminal
and the red test lead into the positive terminal.
2.
Set the function dial to the

position.
3.
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.
4.
Read the resistance measurement on the LCD display.
Diode and Continuity 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. Turn the rotary dial to the
•)))
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 mV
and an o
pen device will indicate “
OL
” in both polarities.
5. For Continuity tests, if the resistance is < 40

, a tone
will sound.
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.
Red Black Black Red
Probe Probe Probe Probe
Forward test Reverse test