A-37. 2645A Frequency Accuracy Specifications; A-38. 2645A Frequency Sensitivity Specifications - Fluke NetDAQ 2640A User Manual

2645A Frequency Measurement Specifications
Tables A-37 to A-38 provide 2645A specifications for the frequency measurement
function.
Table A-37. 2645A Frequency Accuracy Specifications
Frequency Measurement Accuracy, 1 Year, -10ºC to 60ºC
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-38. 2645A Frequency Sensitivity Specifications
Frequency Measurement Sensitivity (Sine Wave)
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
Resolution
Slow Fast
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 rms
100 mV rms
150 mV rms
150 mV rms
Linearly increasing from 150V
ms at 300 kHz to 2V rms at 1
MHz
Specifications
2645A Specifications
Accuracy + (% input + Hz)
Slow
0.05%+0.02 Hz 0.05%+0.2 Hz
0.05%+0.1 Hz 0.05%+1 Hz
0.05%+1 Hz 0.05%+10 Hz
0.05%+10 Hz 0.05%+100 Hz
0.05%+100 Hz 0.05%+1 kHz
Maximum Signal
30V rms
20V rms
10V rms
7V rms
Linearly decreasing from 7V
rms at 300 kHz to 2V rms at 1
MHz
A
A-28.
Fast
A-25