RIGOL M300 - Manual (Page 27)

RIGOL
© 2007 RIGOL Technologies, Inc.
User’s Guide for DM3000 Series
1-17
4-Wire Resistance Measurement
Figure 1- 21 4-Wire Resistance Measurement Interface
Table1- 6 Resistance Measurement Characteristics
Seven Ranges 200Ω, 2kΩ, 20kΩ, 200kΩ, 1MΩ, 10MΩ, 100MΩ
Max Resolution 100uΩ
Open-circuit
Voltage
<7V
Import Protection
(1). 200V
PK
(2). 1000V on all ranges (HI Terminal)
(3). 200V on all ranges (HI Sense, LO Sense)
Configurable
Parameters
Range, Null value
Steps:
1. Connect test leads as show in Figure 1- 22; red test lead to the HI Terminal,
black test lead to the LO Terminal.
2. Press twice to select the 4-Wire Resistance Measurement.
3. Choose the appropriate measurement 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)
5. Lead test leads into circuit, start to measure.