Fluke 5820A, Руководство по обслуживанию

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Calibration and Verification
Verification
3
3-41
Table 3-21. High Frequency Flatness Verification (cont.)
Amplitude
(V)
Calibrator
Mainframe
Freq.
(MHz)
A B
50 kHz
C D E
Calibrator Mainframe
Flatness Spec. (%)
0.04
50 MHz
±
1.75
100 MHz
±
1.75
150 MHz
±
2.25
200 MHz
±
2.25
250 MHz
±
2.25
300 MHz
±
2.25
350 MHz
±
3.75
400 MHz
±
3.75
450 MHz
±
3.75
500 MHz
±
3.75
550 MHz
±
4.25
600 MHz
±
4.25
0.07
50 MHz
±
1.64
100 MHz
±
1.64
150 MHz
±
2.14
200 MHz
±
2.14
250 MHz
±
2.14
300 MHz
±
2.14
350 MHz
±
3.64
400 MHz
±
3.64
450 MHz
±
3.64
500 MHz
±
3.64
550 MHz
±
4.14
600 MHz
±
4.14
Complete Columns A-E as follows:
A Enter the 437B present frequency Reading (W).
B Enter the 437B 50 kHz Reading (W).
C Apply power sensor correction factor for present frequency (W): CF * (Column A
entry)
D Apply power sensor correction factor for 50 kHz (W): CF * (Column B entry)
E Compute and enter Error relative to 50 kHz plus floor (%): 100 * [(sqrt(Column
B/Column D entry) -1)
±
100*(100
µ
V/nominal voltage)].