Keithley DMM6500 Manual page 22

Section 2: Performance verification
Verify the ac voltage 100 mV range
Nominal value
0.1
0.1
0.1
0.1
Verify the ac voltage 1 V range
Nominal value
1
1
1
1
Verify the ac voltage 10 V range
Nominal value
10
10
10
10
Verify the ac voltage 100 V range
Nominal value
100
100
100
100
Verify ac voltage accuracy for the 750 V range
Use shielded low capacitance cabling. For the 750 V range, avoid cable capacitances of >150 pF.
Excessive capacitance may result in additional load regulation uncertainties and could cause the
calibrator output to open (go into standby).
2-12
DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
Frequency Lower limit
20 Hz 99.91
1 kHz 99.91
50 kHz 99.83
100 kHz 99.32
Frequency Lower limit
20 Hz .9991
1 kHz .9991
50 kHz .9983
100 kHz .9932
Frequency Lower limit
20 Hz 9.991
1 kHz 9.991
50 kHz 9.983
100 kHz 9.932
Frequency Lower limit
20 Hz 99.910
1 kHz 99.910
50 kHz 99.830
100 kHz 99.320
Upper limit
100.09
100.09
100.17
100.68
Upper limit
1.0009
1.0009
1.0017
1.0068
Upper limit
10.009
10.009
10.017
10.068
Upper limit
100.09
100.09
100.17
100.68
DMM6500-905-01 Rev. E June 2021