A-22. 2640A Frequency Accuracy Specifications; A-23. 2640A Frequency Sensitivity Specifications - Fluke NetDAQ 2640A User Manual

2640A/2645A NetDAQ
Users Manual
2640A Frequency Measurement Specifications
Tables A-22 to A-23 provide 2640A specifications for the frequency measurement
function.
Range
15 Hz to 900 Hz
900 Hz to 9 kHz
9 kHz to 90 kHz
90 kHz to 900 kHz
1 MHz
Frequency Range
15 Hz to 70 Hz
70 Hz to 100 kHz
100 kHz to 200 kHz
200 kHz to 300 kHz
300 kHz to 1 MHz
* 300V range applies to channels 1 and 11 only.
A-16
Table A-22. 2640A Frequency Accuracy Specifications
Frequency Measurement Accuracy, 1 Year, -10ºC to 60ºC
Resolution
Slow
0.01 Hz
0.1 Hz
1 Hz
10 Hz
100 Hz
Table A-23. 2640A Frequency Sensitivity Specifications
Frequency Measurement Sensitivity (Sine Wave)
Minimum Signal
100 mV rms
100 mV rms
150 mV rms
150 mV rms
Linearly increasing from 150V
rms at 300 kHz to 2V rms at 1
MHz
Accuracy (% input + Hz)
Fast Slow
0.1 Hz 0.05%+0.02 Hz
1 Hz 0.05%+0.1 Hz
10 Hz 0.05%+1 Hz
100 Hz 0.05%+10 Hz
1 kHz 0.05%+100 Hz
V<150/300V rms* (depends on
channel used) and V*Hz<2*10
Linearly decreasing from 7V rms
at 300 kHz to 2V rms at 1 MHz
A-20.
Fast
0.05%+0.2Hz
0.05%+1 Hz
0.05%+10 Hz
0.05%+100 Hz
0.05%+1 kHz
Maximum Signal
6
20V rms
10V rms
7V rms