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HP 2040D User Manual

Page 49

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Series 2040 Test System

Series 2040 Maintenance Manual V2.00

Certification

48

If the TCXO fails the preset calibration limits, it will also require a manual

adjustment. Again, contact Digalog Systems should this occur.

The procedure for the Selftest PPS current feedback circuit is almost identical

to the first two certification procedures. Follow the instructions displayed on

the screen.

The fourth procedure certifies the ICAM Selftest current measurement

circuitry, and the last certification screen is shown below.

Connect the ICAM Certification cable from the white connector on the ICAM

Selftest board to the Fluke 8840 Multimeter.

The ICAM IMON measurement certification tests the circuitry over six

different ranges with the results displayed to the right of the dialog. The result

of the current certification is also displayed. If any of these readings are out of

range, the small box adjacent to the result will appear red instead of green.