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Model DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
Section 2: Performance verification
DMM6500-905-01 Rev. A/July 2018
2-11
Figure 4: Connections for AC voltage accuracy verification 750 V range
4. On the DMM6500, press the
FUNCTION
key and select
AC voltage
.
5. On the Home screen, select the button next to Range and select
750 V
.
6. Press the
MENU
key.
7. Under Measure, select
Settings
.
8. Ensure that detector bandwidth is set to
30 Hz
.
AC voltage is specified for the detector bandwidth setting of 3 Hz. Three Hz measures accurately for
input signals from 3 Hz to 300
kHz, with reading rates ≈ 0.5 readings/s. To improve verification
throughput to ≈ 3.3 readings/s, set detector bandwidth to 30 Hz for frequencies of 30 Hz to 300 kHz.
To verify frequencies 1 kHz and higher, set the detector bandwidth to 300
Hz for faster ≈ 55
readings/s throughput.
9. Set the calibrator to
OPERATE
.
10. Source AC voltages for each of the frequencies listed in the "Verify the AC voltage 750 V range"
table, below. Be sure that the readings are within low and high limits.
Verify the AC voltage 750 V range
Input
Frequency (Hz)
Lower limit
Upper limit
740
5.0E+01
7.02
7.02
740
1.0E+03
7.02
7.02
740
5.0E+04
7.02
7.02
740
1.0E+05
7.02
7.02