Digital Multimeter Operation 2
Making Measurements
U3606A User’s and Service Guide 53
5 Reverse the probes and measure the voltage across the diode again
(refer to Figure 2- 9 on page 51). Assess the diode according to the
following guidelines:
• A diode is considered good if the multimeter displays “OPEn” in
reverse bias mode.
• A diode is considered shorted if the multimeter displays
approximately 0 V in both forward and reverse bias modes, and the
U3606A beeps continuously.
• A diode is considered open if the multimeter displays “OPEn” in both
forward and reverse bias modes.
The U3606A can display diode forward bias of up to approximately
1.2 V. The forward bias of a typical diode is within the range of 0.3 V to
0.8 V.
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