IDM-8351 Instruction Manual/English
152
17/11/2016 Version No. 002
F
AQ
The DMM performance doesn’t match the specifications.
Make sure the device is powered On for at least 30 minutes, within 18~28
˚C. This
is necessary to stabilize the unit to match the specifications.
The measured voltage does not match the expected value.
There are a number of reasons why the measured value may not match the
expected values.
1. Ensure that all connections are connected securely and have a good contact at
all times. Poor contacts could result in erroneous measurements.
2. Ensure that the appropriate input resistance has been set in the System menu.
For 100mV and 1
V ranges, the input resistance can be set to either 10MΩ or 10GΩ.
3. When measuring AC voltage or current, the RMS of the voltage peak is
measured, not the voltage peak. See page 34 for details.
4. The measurement rate settings can have an effect on the accuracy of the
measurement. Slow measurements are more accurate, while the fast rate is not as
accurate.
