TIP
If the measured resistance is small, Relative operation is recommended to reduce the error
caused by test lead. If no oRelative operation is used, an additional error of 0.2 Ω is added.
To test the resistance above 1 MΩ, avoid external interference.
5. Read the measured value
When reading the measurement results, you can use the arrow keys to switch the
reading rate.
6. Hold the reading data
Press to run and hold the reading data displayed on the screen.
5.3.5.2 4WR Measurement
When the measured resistance is lower than 100 kΩ, the 4-wire resistance
measurement is recommended to reduce the measurement error caused by test lead
resistance and contact resistance between the probe and the testing point because
these two resistances cannot be ignored comparing with the measured resistance.
Operation Procedures:
1. To enter the 4WR measurement interface, perform either one of the following two
operations.
- Press > to enter the 4WR measurement interface.
- Click or tap the main measurement item shown at the left part of the main
display area. The measurement items are displayed. Click or tap to select
to enter the 4WR measurement interface.
Front Panel Operation
DM858 Series User Guide
44
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