
Chapter 4: Testing Performance
Performance Test Record
77
Offset Accuracy Test (1 MW)
Vertical
Sensitivity
External
Supply
Setting
V
DMM+
V
scope+
V
error+
V
DMM-
V
Scope-
V
erro
r-
Offset
Accuracy
Limit (
±)
V
zero-error
V
zero-error
Limit (±)
Channel 1
0.005 V/div ±2 V 26.4 mV 1.4 mV
0.01V/div ±5 V 64.3 mV 1.8 mV
0.02 V/div ±10 V 127.6 mV 2.6 mV
0.05 V/div ±10 V 130.0 mV 5.0 mV
0.1 V/div ±20 V 259.0 mV 9.0 mV
0.2 V/div ±20 V 267.0 mV 17.0 mV
0.5 V/div ±20 V 291.0 mV 41.0 mV
1 V/div ±100 V 1.33 V 81.0 mV
2 V/div ±100 V 1.41 V 161 mV
5 V/div ±100 V 1.65 V 401 mV
Channel 2
0.005 V/div ±2 V 26.4 mV 1.4 mV
0.01V/div ±5 V 64.3 mV 1.8 mV
0.02 V/div ±10 V 127.6 mV 2.6 mV
0.05 V/div ±10 V 130.0 mV 5.0 mV
0.1 V/div ±20 V 259.0 mV 9.0 mV
0.2 V/div ±20 V 267.0 mV 17.0 mV
0.5 V/div ±20 V 291.0 mV 41.0 mV
1 V/div ±100 V 1.33 V 81.0 mV
2 V/div ±100 V 1.41 V 161 mV
5 V/div ±100 V 1.65 V 401 mV
Channel 3
0.005 V/div ±2 V 26.4 mV 1.4 mV
0.01V/div ±5 V 64.3 mV 1.8 mV
0.02 V/div ±10 V 127.6 mV 2.6 mV
0.05 V/div ±10 V 130.0 mV 5.0 mV
0.1 V/div ±20 V 259.0 mV 9.0 mV
0.2 V/div ±20 V 267.0 mV 17.0 mV
0.5 V/div ±20 V 291.0 mV 41.0 mV
1 V/div ±100 V 1.33 V 81.0 mV
2 V/div ±100 V 1.41 V 161 mV
5 V/div ±100 V 1.65 V 401 mV
Channel 4
0.005 V/div ±2 V 26.4 mV 1.4 mV
0.01V/div ±5 V 64.3 mV 1.8 mV
0.02 V/div ±10 V 127.6 mV 2.6 mV
0.05 V/div ±10 V 130.0 mV 5.0 mV
0.1 V/div ±20 V 259.0 mV 9.0 mV
0.2 V/div ±20 V 267.0 mV 17.0 mV
0.5 V/div ±20 V 291.0 mV 41.0 mV
1 V/div ±100 V 1.33 V 81.0 mV
2 V/div ±100 V 1.41 V 161 mV
5 V/div ±100 V 1.65 V 401 mV
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