Fluke 2680A User Manual page 223

FAI Module Frequency Measurement Specifications
The following tables provide FAI Module specifications for the frequency
measurement function.
Table A-35. FAI Module Frequency Accuracy Specifications
Range
15 Hz to 900 Hz
900 Hz to 9 kHz
9 kHz to 90 kHz
90 kHz to 900 kHz
1 MHz
Table A-36. FAI 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
Frequency Measurement Accuracy, 1 Year, -10 °C to 60 °C
Resolution
Slow
0.01 Hz 0.1 Hz
0.1 Hz 1 Hz
1 Hz 10 Hz
10 Hz 100 Hz
100 Hz 1 kHz
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
30 V ac rms
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
Specifications
Fast
0.05%+0.2 Hz
0.05%+1 Hz
0.05%+10 Hz
0.05%+100 Hz
0.05%+1 kHz
Maximum Signal
A
A-27