NI PXI-4070 Calibration Procedure
58
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Verification Limits
This section includes the verification limits for DC voltage, AC voltage,
4-wire resistance, 2-wire resistance, DC current, AC current, and frequency
for the NI 4070. Compare these limits to the results you obtain in the
section.
DC Voltage
AC Voltage
Table 11.
NI 4070 DC Voltage Verification Limits
Calibrator
Amplitude
Range
Input Resistance
2-Year Limits
24-Hour Limits
Lower
Upper
Lower
Upper
0 V
1 V
>10 G
Ω
/10 M
Ω
–6
µ
V
6
µ
V
–2
µ
V
2
µ
V
0 V
10 V
>10 G
Ω
/
10 M
Ω
–60
µ
V
60
µ
V
–20
µ
V
20
µ
V
0 V
100 V
10 M
Ω
–600
µ
V
600
µ
V
–200
µ
V
200
µ
V
0 V
300 V
10 M
Ω
–6 mV
6 mV
–1.8 mV
1.8 mV
100 mV
100 mV
>10 G
Ω
/
10 M
Ω
0.099994 V
0.100006 V
0.099998 V
0.100002 V
–100 mV
100 mV
>10 G
Ω
/
10 M
Ω
–0.100006 V
–0.099994 V
–0.100002 V
–0.099998 V
1 V
1 V
>10 G
Ω
/
10 M
Ω
0.999969 V
1.000031 V
0.999992 V
1.000008 V
–1 V
1 V
>10 G
Ω
/
10 M
Ω
–1.000031 V
–0.999969 V
–1.000008 V
–0.999992 V
10 V
10 V
>10 G
Ω
/
10 M
Ω
9.99969 V
10.00031 V
9.99994 V
10.00006 V
–10 V
10 V
>10 G
Ω
/
10 M
Ω
–10.00031 V
–9.99969 V
–10.00006 V
–9.99994 V
100 V
100 V
10 M
Ω
99.9959 V
100.0041 V
99.9992 V
100.0008 V
–100 V
100 V
10 M
Ω
–100.0041 V
–99.9959 V
–100.0008 V
–99.9992 V
300 V
300 V
10 M
Ω
299.9835 V
300.0165 V
299.9964 V
300.0036 V
–300 V
300 V
10 M
Ω
–300.0165 V
–299.9835 V
–300.0036 V
–299.9964 V
Table 12.
NI 4070 AC Voltage Verification Limits
Calibrator Output
Range
Coupling
2-Year Limits
Amplitude
Frequency
Lower
Upper
5 mV
1 kHz
50 mV
AC/DC
0.0049775 V
0.0050225 V
50 mV
30 Hz
50 mV
DC
0.04993 V
0.05007 V
