FLIR DM286 USER MANUAL Document Identifier: DM286-en-US_AA
9.14 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. Set the function switch to the diode
position. Use the MODE button to
select the diode test function. The diode indicator
will be displayed.
2. Insert the black probe lead into the negative COM terminal and the red probe
lead into the positive terminal.
3. As shown in Fig. 9.6, touch the tips of the test leads across the diode in one
direction (1) and note the voltage reading. Touch the tips of the test leads
across the diode in the opposition direction (2) and note that reading.
4. To determine if the diode is good or bad, use the voltage reading combinations
shown in Fig. 9.6 as a guide.
Fig. 9.6 Diode Test