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© National Instruments Corporation 59 NI 4070/4072 Calibration Procedure
AC Voltage
–100 mV 100 mV >10 GΩ/10 MΩ –0.100006 V –0.099994 V –0.100002 V –0.099998 V
1V 1V >10 GΩ/10 MΩ 0.999969 V 1.000031 V 0.999992 V 1.000008 V
–1 V 1V >10 GΩ/10 MΩ –1.000031 V –0.999969 V –1.000008 V –0.999992 V
10 V 10 V >10 GΩ/10 MΩ 9.99969 V 10.00031 V 9.99994 V 10.00006 V
–10 V 10 V >10 GΩ/10 MΩ –10.00031 V –9.99969 V –10.00006 V –9.99994 V
100 V 100 V 10MΩ 99.9959 V 100.0041 V 99.9992 V 100.0008 V
–100 V 100 V 10 MΩ –100.0041 V –99.9959 V –100.0008 V –99.9992 V
300 V 300 V 10 MΩ 299.9835 V 300.0165 V 299.9964 V 300.0036 V
–300 V 300 V 10 MΩ –300.0165 V –299.9835 V –300.0036 V –299.9964 V
Table 16. NI 4070/4072 AC Voltage Verification Limits
Calibrator Output
Range Coupling
2-Year Limits
Amplitude Frequency Lower Upper
5mV 1kHz 50 mV AC/DC 0.0049775 V 0.0050225 V
50 mV 30 Hz 50 mV DC 0.04993 V 0.05007 V
50 mV 50 Hz 50 mV AC/DC 0.049955 V 0.050045 V
50 mV 1kHz 50 mV AC/DC 0.049955 V 0.050045 V
50 mV 1kHz 500 mV AC/DC 0.049875 V 0.050125 V
50 mV 20 kHz 50 mV AC/DC 0.049955 V 0.050045 V
50 mV 50 kHz 50 mV AC/DC 0.049935 V 0.050065 V
50 mV 100 kHz 50 mV AC/DC 0.04971 V 0.05029 V
50 mV 300 kHz 50 mV AC/DC 0.04845 V 0.05155 V
500 mV 30Hz 500 mV DC 0.49945 V 0.50055 V
500 mV 50Hz 500 mV AC/DC 0.49965 V 0.50035 V
500 mV 1kHz 500 mV AC/DC 0.49965 V 0.50035 V
500 mV 1kHz 5V AC/DC 0.49875 V 0.50125 V
500 mV 20 kHz 500 mV AC/DC 0.49965 V 0.50035 V
500 mV 50 kHz 500 mV AC/DC 0.49945 V 0.50055 V
Table 15. NI 4070/4072 DC Voltage Verification Limits (Continued)
Calibrator
Amplitude
Range Input Resistance
2-Year Limits 24-Hour Limits
Lower Upper Lower Upper