RIGOL Chapter 1 Test Overview
DM3058/DM3058E Performance Verification Guide
Test Devices
You are recommended to use the devices listed in Table 1-1 to test DM3058/DM3058E
digital multimeter. If you do not have these devices, please use other devices that can
meet the "Precision Requirement" in the table below.
Table 1-1 Recommended Device List
Item Recommended Device Precision Requirement
Zero Offset None Pure copper 4-terminal short-circuiter
DC Voltage Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
DC Current Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
Resistance Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
AC Voltage Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
AC Current Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
Frequency Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
Capacitance Fluke 5520A
<1/5 of the 1-year parameters of the
instrument
Test Conditions
For the optimum performance, all the procedures should comply with the following
recommendations.
1. Provide proper working voltage for the device.
2. Make sure the environment temperature is stable and between 18℃ and 28℃.
Ideally, the calibration should be performed at 23℃±2℃.
3. Make sure the environment relative humidity is lower than 80%.
4. Make sure that the instrument has been warmed up for more than 1 hour before
the test or calibration.
5. Use copper connectors to reduce the effect of thermoelectric potential.
6. Use Teflon shielded twisted pair (as short as possible) to reduce the effect of
external interference. When making capacitance verification, use coaxial cable to
minimize the external interference and noise.
7. Ground the shield of the twisted pair and the shield of the coaxial cable. Unless
otherwise noted, ground the LO terminal of the calibrator.
As DM3058/DM3058E digital multimeter is a high-precision measuring instrument,
special care should be paid during the verification to avoid causing additional error.
Ideally, the accuracy of the standard source of the verification should be more than 5
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