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