RIGOL 
 ©   2007  RIGOL  Technologies,  Inc. 
  User‟s Guide for DM3000 Series 
200mV, 2V, 20V, 200V, 750V 
 
Steps: 
1.  Connect  test  leads  as  Figure  1-  35  shown.  Red  test  lead  connects  the  HI 
Terminal, Black test lead connects the LO Terminal. 
2.  Press    twice to select the Period Test. 
3.  Set the Null value. 
Null computing will be an optional operation, could be setup in accordance with 
users‟ demand. If user does not implement Null computing, this parameter is   
not required, direct implementation of the next step. 
(To  know  the  specific  setting  methods  of  the  Null  value  setting,  please  refer  to 
Chapter 2 “To Set Up Measurement Parameters”, Null computing)