Measuring Diodes & Continuity - UNI-T UT50D Operating Manual

Model UT50D: OPERATING MANUAL
Measurement Operation(12)
l When temperature measeuremnet has been completed,
disconnect the connection between the testing leads
and te circuit under test.
Testing Diodes
Use the diode test to check diodes, transistors, and other
semiconductor devices. The diode test sends a current
through the semiconductor junction, and then measures
the voltage drop across the junction. A good silicon junction
drops between 0.5V and 0.8V.
To test out a diode out of a circuit, connect the Meter as
follows:
1. Insert the red test lead into the
the black test lead into the COM terminal.
( figure 9)
V
24
terminal and