PDi DM62 - Testing Diode

2. When the input is not connected, i.e. at open circuit, the figure "1" will be displayed for the
overrange condition.
3. When checking in-circuit resistance, be sure the circuit under test has all power removed
and all capacitors are fully discharged.
4. At 200M R range display is 1 Ocounts when test leads are shorted. These counts have to be
subtracted from measuring results. For example, when measuring
100M R resistance, the
reading will be
101 .O and the correct measuring result should be 101 .O-1.0 = 1 0O.OMR.
3.4 TESTING DIODE
1. Connect the black test lead to the COM jack and the red test lead to the VIR jack. (NOTE:
The polarity of red lead connection is positive
" + ")
2. Set the rotary switch atuposition and connect the red lead to the anode, the black lead to
the cathode of the diode under testing. The meter will show the approx. forward voltage
drop of the diode. If the lead connection is reversed, only figure "1" will be displayed.