SDM3055 Series Digital Multimeter User Manual
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To Test Diode
If input voltage is under +0.7V (about 1.4kΩ), the Beeper will beep one time. If input voltage is under
50mV (about 100Ω) the Beeper will beep persistently. The method to test Diode will be introduced in
details as the following steps.
Operating Steps:
1. Press and on the front panel to enter the Diode test interface, as shown in Diagram
2- 25.
Diagram 2-25 Diode Test Interface
2. Connect red lead to both terminal Input-HI and anode of the Diode and black lead to both terminal
Input-LO and cathode of the Diode as the following diagram.
Diagram 2-26 Sketch Map for testing Diode
3. Set the Beeper function.
Press [Beeper] to turn on or off the Beeper. If the circuit is continuous, the instrument will beep
once when the Beeper is turned on.
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