9
Diode and continuity measurement (See Figure 6&7)
Diode measurement
Perform diode test to check diodes, transistors, and other semiconductor devices.
The meter can measure the voltage drop of PN joint of diode and other semiconductors in
this range. For a silicon semiconductor with normal structure, the reading of the forward
voltage drop should be within 0.5~0.8V.
To test diode, perform the following steps:
•
Insert the red test probe into the VΩmA terminal and the black test probe into the
COM terminal.
•
Turn the range selector to
range.
•
For forward voltage drop readings on any semiconductor components, connect
the red test probe to the anode and the black test probe to the cathode of the
components.
•
The measured value will be shown on the display. This is the voltage drop across
the diode. I
f the display shows “OL”, it indicates the open circuit or reversed
connection.