NI 4071 7½-Digit FlexDMM Calibration Procedure
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© National Instruments
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155
AC Current
Frequency
Table 26.
NI 4071 AC Current Verification Limits
Calibrator Output
Range
2-Year Limits
Amplitude
Frequency
Lower
Upper
9
A
1 kHz
100
A
8.9773
A
9.0227
A
90
A
1 kHz
100
A
89.953
A
90.047
A
90
A
1 kHz
1 mA
89.773
A
90.227
A
900
A
1 kHz
1 mA
899.530
A
900.470
A
900
A
1 kHz
10 mA
897.73
A
902.27
A
9 mA
1 kHz
10 mA
8.99530 mA
9.00470 mA
9 mA
1 kHz
100 mA
8.9773 mA
9.0227 mA
90 mA
55 Hz
100 mA
89.9530 mA
90.0470 mA
90 mA
5 kHz
100 mA
89.9530 mA
90.0470 mA
90 mA
1 kHz
100 mA
89.9530 mA
90.0470 mA
90 mA
1 kHz
1 A
89.71 mA
90.29 mA
900 mA
1 kHz
1 A
898.90 mA
901.10 mA
300 mA
1 kHz
3 A
299.1 mA
300.9 mA
2.2 A
1 kHz
3 A
2.1972 A
2.2028 A
Table 27.
Frequency Limits
External Source
Output Frequency
2-Year Limits
Lower
Upper
1 Hz
0.9999 Hz
1.0001 Hz
20 kHz
19.998 kHz
20.002 kHz
500 kHz
499.95 kHz
500.05 kHz