Keithley DMM6500

DMM6500
6½ Digit Multimeter User's Manual Section 5: Measuring DC voltage w
ith high accuracy
DMM6500-900-01Rev. A / April 2018 5-7
Test results
The following table shows the tradeoff between accuracy and measurement speed based on the
integration rate (NPLC), averaging filter, and autozero settings. The first row of data is measured
using the setup documented in this example. The other rows show the results as the integration rate,
filter, and autozero settings are changed.
DC voltage Measurement time (sec) Integration rate (NPLC) Filter Auto Zero
4.999985
33.542816
10
On
On
4.999982
0.335426
10
Off
On
4.999979
0.035426
1
Off
On
4.999990
0.017023
1
Off
Off
Figure 33: DC voltage high accuracy test results