15
4-9 Diode Tests
WARNING
Before taking any in-circuit measurement remove power from
the circuit being tested and discharge all capacitors.
1). Connect red test lead to “ V-
Ω
-Hz “ terminal and black test lead
to “ COM “ terminal.
2). Set range switch to diode test (
) position.
3). Connect the red test lead to the anode side and black test lead to
the cathode side of the diode being tested.
4). Read forward voltage (Vf) value displayed on LCD.
5). If test leads are connect to the diode in a way different procedure
(3). The reading should be nearly equal to the reading without
any diode being connected. This can be used for distinguishing
anode and cathode poles of a diode.
4-10 Continuity Measurement
1). Connect red test lead to “ V-
Ω
-Hz “ terminal and black test lead
to “ COM “ terminal.
2). Set range switch to the (
) position.
3). Remove power from the circuit being tested and discharge all
capacitors.
4). Connect the test lead to the circuit being measured.
5). When the impedance of a circuit is below 30
Ω
. Continuous
beeping tone shall be heard.
NOTE:
Continuity Test is available to check open / short circuit. If precise
data of resistance is needed, use
Ω
function.