User manual

SIGLENT
SDM3055 Digital Multimeter 57
Auto Trigger
Auto Trigger parameters that need to be set up include delay, samples/
trigger and VMC out.
Operating Steps:
1. Press , then select 【Trg Src】→【Auto】or press on the front
panel directly to enable Auto Trigger.
2. Set the delay.
Delay is the waiting time after the trigger signal is sent out and before the
auquiring starts. Press 【Delay】to select Auto or Manual mode. When
choosing Manual mode，Left and Right keys are used to switch the
number of a numerical value, Up and Down keys are used to change the
selected value.
3. Set the number of samples or trigger.
Press 【Samples/Trigger】to set the sample count. Left and Right keys are
used to switch the number of a numerical value, Up and Down keys are
used to change the selected value.
4. Set the VMC Out.
Press 【VMC Out】to choose Positive or Negative polarity.
Sample Count
 Sample Count indicates the count of point sampled while the
Multimeter getting a signal of Single Trigger.
 The range of sampling point should be between 1 and 599999999.
 The default value of Sample Count is 1.