RIGOL
Service Guide for DM3000 Series
1. Zero Offset Test
When testing Zero Offset, firstly apply a 4-wire short across the Input HI-Lo and
Sense HI-Lo terminals (front terminals), then leave the current terminal open as
shown in figure 3-1:
Figure 3-1
The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit
Next, perform the test items in table 3-2 or table 3-3 one by one, then compare
the test results with the error range in the tables.
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