Fluke 5500A, Service Manual

Page: 229 / 296

SC300 Option
Verification
6
6-103
3. Enter 10 MHz into the Calibrator Mainframe. Allow the power meter reading to
stabilize, then enter the power meter’s reading in Column B of Table 6-62.
4. Enter the next frequency listed in Table 6-62. Allow the power meter’s reading to
stabilize, then enter the reading into Column A of the table.
5. Enter 10 MHz into the Calibrator Mainframe. Allow the power meter reading to
stabilize, then enter the power meter’s reading in Column B of Table 6-62.
6. Repeat steps 4 and 5 for all of frequencies listed in Table 6-62. Continue until you
have completed Columns A and B.
7. When you have completed Columns A and B, press
Y
to remove the Calibrator
Mainframe’s output. Complete Table 6-62 by performing the calculations for each
column. Compare Column E to the specifications listed in the final column.
Table 6-62. High Frequency Flatness Verification at 5.5 V
Calibrator
Mainframe
Freq. (MHz)
A
B
10 MHz
C D E
Calibrator Mainframe
Flatness Spec. (%)
20
±
1.50 +100 uV
50
±
1.50 +100 uV
100
±
1.50 +100 uV
125
±
2.00 + 100 uV
160
±
2.00 + 100 uV
200
±
2.00 + 100 uV
220
±
2.00 + 100 uV
235
±
2.00 + 100 uV
250
±
2.00 + 100 uV
300
±
2.00 + 100 uV
Complete Columns A-E as follows:
A Enter the E4418A present frequency Reading (W).
B Enter the E4418A 10 MHz Reading (W).
C Apply power sensor correction factor for present frequency (W): CF * (Column A entry).
D Apply power sensor correction factor for 10 MHz (W): CF * (Column B entry).
E Compute and enter Error relative to 10 MHz (%): 100 * (sqrt(Column C entry) -
sqrt(Column D entry)) / sqrt(Column D entry).