6½-Digit Multimeter with Scanning Calibration and Adjustment Manual Section 2: Performance verificat
DMM6500-905-01 Rev. E June 2021 2-3
Line power
The DMM6500 requires a line voltage of 100 V to 240 V and a line frequency of 400 Hz, 50 Hz or 60
Hz. Calibration verification tests should be performed within this range.
The instrument automatically senses the line frequency at power-up.
Recommended test equipment
The following table summarizes the recommended calibration verification equipment. You can use
alternate equipment if that equipment has specifications that meet or exceed those listed in the table
below. Test equipment uncertainty adds to the uncertainty of each measurement. Generally, test
equipment uncertainty should be at least four times more accurate than corresponding DMM6500
specifications.
In this manual, the Model 8610 shorting plug is shown in the figures. However, you can use either
the Model 8610 or the Model 8620 shorting plug.
Manufacturer Model Description Used for Uncertainty
Multifunction Calibrator
resistance
note.
Fluke 8508A or 8588A
8.5-Digit Reference
Multimeter
DCI
Function/Arbitrary
Waveform Generator
IET Labs, Inc. 1423-A
Capacitor
1 µF
note.
Accuracy Decade
100 µF
note.
Instruments
Plug
resistance
note.
Refer to the manufacturer's specifications to calculate the uncertainty, which varies for each function
and range test point.
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