FLIR DM91 USER MANUAL Document Identifier: DM91-en-US_AB
18
5.6 Classic Diode Test
Warning
: Do not perform diode tests before removing the power to the diode or other
devices under test during a measurement. Injury to persons can occur.
1.
If not already selected, choose CLASSIC Diode test mode in the Settings menu
(see
2.
Set the function switch to the diode
position. Use the
button to
select the diode test function. The diode indicator
appears.
3.
Insert the black probe lead into the negative COM terminal and the red probe
lead into the positive terminal.
4.
Touch the tips of the probe across the diode or semiconductor junction under
test in one polarity (direction) and then in the opposite polarity as shown in Fig.
5-3.
5.
If the reading is between 0.400 and 0.800V in one direction and OL (overload) in
the opposite direction, the component is good. If the measurement is 0V in both
directions (shorted) or OL in both directions (open), the component is bad.
Fig. 5-3
Classic Diode Measurements
