Specifications

Chapter 4 Calibration RIGOL
Service Guide for DM3058
4-3
default . Select On/Off as “On” and the instrument will amend the measuring result
according to user calibration parameters. Conversely, factory parameters will be
rested on.
DC Voltage, DC Current, Resistance Calibration
The calibration procedures of DC voltage, DC current and resistance are all divided
into two steps: Zero calibration and Gain calibration. Zero calibration must be done
firstly while you calibrate.
The calibration procedure of DC voltage, DC current and resistance are almost similar.
Take 4-wire resistance (20 kΩ) as reference to show you the procedure.
1. Read “Testing Equipments” and “Testing Conditions”.
2. Press and enable 4-wire measure. Then separately set the range as 20kΩ
and the reading resolution as “Slow”.
3. Press , and select T/C  PSW to input code. Then set SecrOff and select Cal
 Enter .
4. See figure 4-1, short the terminals of both Input HI-LO and Sense/Ref HI-LO
through 4-terminal shortcircuiter, and then press Zero to execute calibration. The
results will display in the table of UnCal 0 .
Figure 4-1 The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit
5. When finish calibration, connect the terminals of Input HI-LO and Sense/Ref
HI-LO with corresponding output terminal, and enable 4-wire resistance measure
(20 kΩ). Then enable the output of calibration instrument and press Gain to start
calibrating until the output is stable. The results will display in the table of UnCal
G .