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NI PXI-4130 Calibration Procedure
|
© National Instruments
|
23
5.
Calculate the
Current Change Limit
using the formulas shown in the following table:
6.
Subtract the two current measurements,
I
1
-
I
2
, to calculate the
Current Change
. The test
passes if the
Current Change
falls within the calculated
Current Change Limit
.
Table 11.
NI 4130 Current Load Regulation Current Change Limit Formulas
Channel
Current Range
Current Change Limit
0
1 A
±2.00 × 10
-4
× (
V
1
-
V
2
)
1
200
μ
A
±2.00 × 10
-8
× (
V
1
-
V
2
)
2 mA
±2.00 × 10
-7
× (
V
1
-
V
2
)
20 mA
±2.00 × 10
-6
× (
V
1
-
V
2
)
200 mA
±2.00 × 10
-5
× (
V
1
-
V
2
)
2 A
±2.00 × 10
-4
× (
V
1
-
V
2
)