Testing For Continuity; Testing Diodes - ADInstruments AD71B Manual De Usuario

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obtain a stable reading. In order to obtain precision readings, use the test lead as
short as possible.
z The LCD displays OL indicating open-circuit or the tested resistor value is higher
than the maximum range of the Meter.
z 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
2000 counts but the accuracy remains unchanged.
z When resistance measurement has been completed, disconnect the connection
between the testing leads and the circuit under test and remove testing leads away
from the input terminals.

Testing for Continuity

D.
Red Black
Figure 3-4. Continuity Test
Warning
To avoid harms to you, please do not attempt to input voltage higher than
60V DC or 30V rms AC.
To avoid possible damages to the Meter or to the devices under test,
disconnect circuit power and discharge all the high-voltage capacitors
before measuring continuity.
To test for continuity, set up the Meter as Figure 3-4 and do the following:
1. Insert the red test lead into the
terminal.
2. Set the rotary switch to
and connet the test leads across with the object being tested.
3. The beeper comes on continuously for open conditions, that is test resistance ≤
50 .
The BLUE button cycles among resistance, continuity, and diode.
Note
z Open circuit voltage around –1.2V and range is 400 measurement range.
z When continuity testing has been completed, disconnect the connection between
the testing leads and the circuit under test and remove the test leads away from
the input terminals.

Testing Diodes

E.
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terminal and the black test lead into the COM
; press BLUE button to select
Manual de usuario AD71B
AD Instruments
measurement mode
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