User manual

SIGLENT
34 SDM3055 Digital Multimeter
3. Set the Beeper function.
Press 【Beeper】to turn on or off the Beeper. If the circuit is continuous, the
nstrument will beep once when the Beeper is turned on.
Table 2- 11 Characteristics of Checking Diodes
Test Current 1mA
Ranges* Fixed at 2V
Open-circuit Voltage <8V
Input Protection 1000V (HI terminal)
Beep Condition
0.1V≤V measured≤2.0V
4. Read measurement result.
5. Reverse the probes and measure the voltage in the diode once more.
Evaluate the diode according to the following rules:
 If the Multimeter shows “overload” when in reverse bias model, it indicates
that the diode is normal.
 If the Multimeter shows voltage about 0V and the instrument beeps
persistently when in forward and reverse bias model, it indicates that the
diode is short.
 If the Multimeter shows “overload” when in forward and reverse model, it
indicates that the diode is open.
Note:
Before testing diode, please cut off the power and discharge all the
high-voltage containers to avoid damages to the Multimeter.