Southwire 22070T Instrucciones De Uso página 6

Operation cont.
Diode Test
WARNINGS:
Never test diodes in a live circuit.
1. Set the rotary function switch to the
2. Insert the black test lead into the negative COM
input jack and the red test lead into the positive
input jack.
3. Press the button until the "
appears on the LCD display.
4. Touch the test probes to the diode under test.
5. Forward voltage will indicate 0.4V to 0.7V on
the LCD display. Reverse voltage
will indicate "OL". Shorted devices
will indicate near 0V and an open
device will indicate "OL" in both
polarities.
Continuity Test
WARNINGS:
Never test continuity on a live circuit.
1. Set the rotary function switch to the
2. Insert the black test lead into the negative COM input jack and the red test
lead into the positive input jack.
3. Press the button until the "•))) " symbol
appears on the LCD display.
4. Touch the test lead probes to the device or wire
being tested.
5. A tone will sound if the resistance is approximately
30 ohms or less.
•))) CAP position.
" symbol
Red Black Black Red
Probe Probe Probe Probe
Forward test Reverse test
•))) CAP position.
9
Operation cont.
Capacitance Measurements
WARNING:
Safely discharge capacitors
before taking capacitance measurements.
1. Set the rotary function switch to
the •))) CAP position.
2. Press the mode button until the
"nF " symbol appears on the
LCD display.
3. Insert the black test lead into the
negative COM input jack. Insert the
red test lead into the positive V input jack.
4. Touch the test leads to the capacitor to be tested.
5. Read the capacitance value on the LCD display.
Large capacitors may take up to 1 minute to get
a stable reading.
Frequency or % Duty Cycle Measurements
WARNING:
Observe all safety precautions
when working on live voltages.
1. Set the rotary function switch to
the VDC/AC, Hz position.
2. Insert the black test lead into the
negative COM input jack and the
red test lead into the positive V
input jack.
3. Select AC volts with the button.
4. Select Hz or % duty cycle with the
5. Touch the test probe tips to the circuit under test.
6. Read the frequency or duty cycle on the LCD display.
button.
Hz/%
Hz
10