Fluke 2680A User Manual page 213

PAI Module Frequency Measurement Specifications
The following tables provide PAI Module specifications for the frequency
measurement function.
Table A-20. PAI Module Frequency Accuracy Specifications
Range
15 Hz to 900 Hz 0.01 Hz
900 Hz to 9 kHz 0.1 Hz
9 kHz to 90 kHz 1 Hz
90 kHz to 900 kHz 10 Hz
1 MHz 100 Hz
Table A-21. PAI Module Frequency Sensitivity Specifications
Frequency Range
15 Hz to 70 kHz
70 kHz to 100 kHz
100 kHz to 200 kHz
200 kHz to 300 kHz
300 kHz to 1 MHz
[1] 300 V range applies to channels 1 and 11 only.
Frequency Measurement Accuracy, 1 Year, -10 °C to 60 °C
Resolution
Slow
0.1 Hz
1 Hz
10 Hz
100 Hz
1 kHz
Frequency Measurement Sensitivity (Sinewave)
Minimum Signal
100 mV ac rms
100 mV ac rms
150 mV ac rms
150 mV ac rms
Linearly increasing from 150
mV ac rms at 300 kHz to 2 V ac
rms at 1 MHz
Accuracy + (% input + Hz)
Fast Slow
0.05%+0.02 Hz
0.05%+0.1 Hz
0.05%+1 Hz
0.05%+10 Hz
0.05%+100 Hz
Maximum Signal
V<150/300 V rms [1] and Vx Hz<2x10
20 V ac rms
10 V ac rms
7 V ac rms
Linearly decreasing from 7 V ac rms at
300 kHz to 2 V ac rms at 1 MHz
Appendices
A
Specifications
Fast
0.05%+0.2 Hz
0.05%+1 Hz
0.05%+10 Hz
0.05%+100 Hz
0.05%+1 kHz
6
)
A-17