Continuity Test; Resistance Measurements; Diode Test - Southwire 21005N AC Manual De Instrucciones

Operation cont.

Continuity Test

WARNING:
Never test continuity on a live circuit.
1. Set the rotary function switch to the
2. Insert the black test lead into the COM input jack and the red test lead into
the input jack.
3. Touch the test lead probes to the device or wire under test.
4. If the resistance is 50 or less, the beeper will sound. If the resistance is
70 or more, the beeper will not sound. If the resistance is above 200 ,
the LCD display will indicate "OL". The resistance will be shown on the
display if it is below 200 .
CA T III
600V
200A
200A
20A
V
V
H O L D
21005N
TM
position.
CA T III
600V
200A
200A
20A
V
V
H O L D
21005N
TM
13
Operation cont.

Resistance Measurements

WARNING:
Never test resistance on a live
circuit.
1. Set the rotary function switch to the
2. Insert the black test lead into the COM input jack
and the red test lead into the input jack.
3. Touch the test lead probes to the component under
test. If the component is installed in a circuit, it is best
to disconnect one side before testing to eliminate
interference from other devices.
4. Read the resistance on the LCD display.

Diode Test

WARNING:
Never test diodes
on a live circuit.
1. Set the rotary function switch to the
2. Insert the black test lead into the COM input
jack and the red test lead into the
3. Touch the test lead probes to the diode under test.
4. 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.
Red Black Black
Probe
Probe Probe
Forward test Reverse test
200A
position.
20A
V
V
H O L D
21005N
position.
input jack.
200A
20A
V
V
H O L D
21005N
Red
Probe
14
CA T III
600V
200A
TM
CA T III
600V
200A
TM