Keithley DMM6500

Section 2: Performance verification Model DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
2-30 DMM6500-905-01 Rev. A/July 2018
Verify digitize current 100 mA range
Description
Calibrator setpoint
(A)
Lower limit
Upper limit
UUT zero
0
REL
n/a
Full scale (+)
0.1
9.99200E-02
1.00080E-01
Half scale (+)
0.05
4.99450E-02
5.00550E-02
Half scale (–)
–0.05
–5.00550E-02
–4.99450E-02
Full scale (–)
–0.1
–1.00080E-01
–9.99200E-02
Verify digitize current 1 A range
Description
Calibrator setpoint
(A)
Lower limit
Upper limit
UUT zero
0
REL
n/a
Full scale (+)
1
9.99900E-01
1.00100E+00
Half scale (+)
0.5
4.99350E-01
5.00650E-01
Half scale (–)
–0.5
–5.00650E-01
–4.99350E-01
Full scale (–)
–1
–1.00100E+00
–9.99900E-01
Verify digitize current 3 A range
Description
Calibrator setpoint
(A)*
Lower limit
Upper limit
UUT zero
0
REL
n/a
⅔ scale (+)
2
1.99700E+00
2.00300E+00
Half scale (+)
1.5
1.49745E+00
1.50255E+00
Half scale (–)
–1.5
–1.50255E+00
–1.49745E+00
⅔ scale (–)
–2
–2.00300E+00
–1.99700E+00
* The 3 A range full-scale test points are limited to 2 A in this table because of the accuracy
limitations of Fluke Models 57xxA and 5725A series calibrators at currents above 2.2 A.
Verify digitize current 10 A range
See Digitize current 10 A range verification (on page 2-39) under Rear-panel verification (on page 2-
37).
AC current verification
The following topics describe how to verify AC current.
Verify AC current on the 100 µA to 3 A ranges
To verify AC current accuracy, you will:
• Apply accurate voltages from the Fluke 5720A or 5730A multifunction calibrator to the DMM6500
front-panel terminals.
• Verify that the displayed readings fall within specified limits.