Verifying Zero Values Using A 4-Wire Short - Tektronix KEITHLEY DMM6500 Calibration Manual

6 1/2-digit multimeter with scanning
Table of Contents

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Section 2: Performance verification
Verify the capacitance
Description
1 nF range cable REL
10% 1 nF range
70% 1 nF range
10% 10 nF range
100% 10 nF range
10% 100 nF range
100% 100 nF range
10% 1 µF range
100% 1 µF range
10% 10 µF range
100% 10 µF range
10% 100 µF range
100% 100 µF range

Verifying zero values using a 4-wire short

Four-wire short verifications are not included in the Customer Calibration Data Report.
To verify zero values using a 4-wire short, you will:
Check the zero values of various test points with 4-wire connections to the DMM6500 front or rear
terminals.
Verify that the displayed readings are within specified limits.
2-44
DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
Verification point
Lower limit (F)
0.375
0.25
0.1
0.0942
0.7
0.6894
1
0.986
10
9.95
10
9.86
100
99.5
0.1
0.0986
1
0.995
1
0.986
10
9.95
10
9.86
100
99.5
Upper limit (F)
0.5
0.1058
0.7106
1.014
10.05
10.14
100.5
0.1014
1.005
1.014
10.05
10.14
100.5
DMM6500-905-01 Rev. E June 2021

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