LeCroy AP034 Instruction Manual page 48

Active differential probe
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14. Record the displayed "Common Mode Signal at 1 MHz" to
two-digit resolution in the Test Record.
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.
ISSUED: January 2000
$3 $FWLYH 3UREH
# # #
AP034-OM-E Rev D

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