9
•
When testing the resistance signal from the calibrator, it is necessary to press and
hold the RANGE while turning on the meter to change the maximum display to
4000 counts but the accuracy remains unchanged.
•
When resistance measurement has been completed, disconnect the test leads
from the circuit under test and remove test leads from the input terminals of the
meter.
Testing for Continuity
•
Turn off power to the circuit. Discharge all high-
voltage capacitors.
•
To test for continuity proceed as follows:
1. Insert the red test lead into the
Ω
terminal and
the black lead into the COM terminal.
2. Set the range selector to
Ω
press BLUE
button to select measurement mode and
connect the test leads across with the object
being tested.
3. The beeper comes on continuously for open
circuits, and will sound for conditions of less than
≤50
Ω
.
Note:
The BLUE button cycles between resistance,
continuity, and diode.
•
When continuity measurement has been completed, disconnect the test leads from
the circuit under test and remove test leads from the input terminals of the meter.
Testing Diodes
•
Turn off power to the circuit. Discharge all high-
voltage capacitors.
•
Use the diode test to check diodes, transistors,
and other semiconductor devices. The diode
test sends a current through the semicondutor
junction, then measures the voltage drop across
the junction. A good silicon junction drops
between 0.5V and 0.8V.
•
To test for continuity proceed as follows:
1. Insert the red test lead into the
Ω
terminal and
the black lead into the COM terminal.
2. Set the range selector to
Ω
press BLUE
button to select measurement mode and
connect the test leads across with the object
being tested.
3. Place the red test lead on the component’s anode and place the black test lead on
the component’s cathode.
Note:
The BLUE button cycles between resistance, continuity, and diode.
•
When continuity measurement has been completed, disconnect the test leads from
the circuit under test and remove test leads from the input terminals of the meter.
