Teledyne LeCroy AP034 - Manual (Page 38)

AP034 Active Differential Probe
32 922261-00 Rev A
15. Calculate the “Common Mode Rejection Ratio (CMRR) at 1 MHz” by dividing 8000 mV by the
measured Common Mode Signal recorded in step C-14. Record the result in the Test Record.
16. Verify that the Common Mode Rejection Ratio at 1 MHz is greater than 100:1 (40 dB).
17. Remove all cables and test fixtures from the AP034 probe. This completes the Performance
Verification of the AP034. Complete and file the results recorded in the AP034 Performance
Verification Test Record, as required by your quality procedures. Apply a suitable calibration
label to the AP034 housing as required.
AP034 Performance Verification Test Record
This record can be used to record the results of measurements made during the performance
verification of the AP034 Active Differential Probe.
Photocopy the next page and record the results on the copy. File the completed record as required
by applicable internal quality procedures.
The section in the test record corresponds to the parameters tested in the performance verification
procedure. The numbers preceding the individual data records correspond to the steps in the
procedure that require the recording of data. Results to be recorded in the column labeled “Test
Result” are the actual specification limit check. The test limits are included in all of these steps.
Other measurements and the results of intermediate calculations that support the limit check are
to be recorded in the column labeled “Intermediate Results.”
Permission is granted to reproduce these pages for the purpose of recording test results.