l
If
reading with shorted test leads is not
0.5
, check for
loose test leads, incorrect function selection, or enabled Data
Hold function.
l
For high-resistance measurement (
), it is normal to
take several seconds to obtain a stable reading.
l
The LCD displays indicating open-circuit for the tested
resistor or the resistor value is higher than the maximum
range of the Meter.
l
When resistance measurement has been completed,
disconnect the connection between the test leads and the
circuit under test, and remove the test leadsfrom the
input terminals of the Meter.
D.Testing for Continuity
(see figure 6)
Measurement Operation (4)
(figure 6)
To avoid damage to the Meter or to the device under test,
disconnect circuit power and discharge all the high-voltage
capacitors before testing for continuity.
To test for continuity, connect the Meter as below:
1. Insert the red test lead into theHzV
terminal and the black
test lead into the COM terminal.
2. Set the rotary switch to
measurement mode.
3. The buzzer sounds if the resistance of a circuit under test is
less than around 70
Warning
and press BLUE button
to select
Note
l
The LCD displays
indicating the circuit being tested is
open.
17
Model 72-7740/72-7745: OPERATING MANUAL
