Table 3. DC Accuracy Verification
Config
Input
Impedance
(
Ω)
Vertical
Range
(V
pk-pk
)
Vertical
Offset
(V)
Test
Points
(V)
As-
Found
Limits
(mV)
As-Left
Limits
(mV)
Measurement
Uncertainty
(mV)
1
1
50
0.25 V
0
0.113
±1.06
±0.87
±0.079
2
50
0.25 V
0
-0.113
±1.06
±0.87
±0.079
3
50
0.5 V
0
0.225
±2.13
±1.72
±0.29
4
50
0.5 V
0
-0.225
±2.13
±1.72
±0.29
5
50
1 V
0
0.450
±4.25
±3.38
±0.23
6
50
1 V
0
-0.450
±4.25
±3.38
±0.23
7
50
2.5 V
0
1.125
±10.6
±8.34
±0.57
8
50
2.5 V
0
-1.125
±10.6
±8.34
±0.57
9
50
5 V
0
2.250
±21.3
±16.5
±0.90
10
50
5 V
0
-2.250
±21.3
±16.5
±0.90
11
1 M
0.25 V
0
0.113
±1.38
±0.83
±0.15
12
1 M
0.25 V
0
-0.113
±1.38
±0.83
±0.15
13
1 M
0.25 V
5
5.113
±21.4
±13.0
±1.5
14
1 M
0.25 V
-5
-5.113
±21.4
±13.0
±1.5
15
1 M
0.5 V
0
0.225
±2.61
±1.75
±0.23
16
1 M
0.5 V
0
-0.225
±2.61
±1.75
±0.23
17
1 M
0.5 V
5
5.225
±22.6
±13.9
±1.6
18
1 M
0.5 V
-5
-5.225
±22.6
±13.9
±1.6
19
1 M
1 V
0
0.450
±5.08
±3.65
±0.5
20
1 M
1 V
0
-0.450
±5.08
±3.65
±0.5
21
1 M
1 V
5
5.450
±25.1
±15.7
±2.0
1
Measurement uncertainty based on Fluke 9500B with Fluke 9530 test head specifications that
apply at T
cal
± 5 °C, where Factory T
cal
= 23 °C. Uncertainty of the 9500B includes long-term
stability of 1 year, temperature coefficient, linearity, load, and line regulation and traceability of
factory and National Calibration Standard.
16
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PXIe-5164 Calibration Procedure
