RIGOL
© Copyright RIGOL Technologies, Inc. 2007. 1-17
User Manual for DM3000 Series
4-Wire Resistance Measurement
Figure 1-22
Table 1-6 Resistance measurement characteristics
Seven Range 200Ω, 2kΩ, 20kΩ, 200kΩ, 1MΩ, 10MΩ, 100MΩ
Max Resolution 100uΩ
Open-circuit
Voltage
<5V
Import Protection
(1). 200V
PK
(2). 1000V on all ranges (HI
Terminal)
Configurable
Parameters
Range, Null value
Basic measurement:
1. Connect test leads as Figure 1-23 shown. Red test leads connect the HI Terminal,
Black test leads connect the LO Terminal.
2. Press twice to select the 4-Wire Resistance Measurement
3. According to the resistance measuring scope, choose the correct range.
4. Set the Null setting value
Null computing will be an optional operation, it 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)