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Roos Instruments recommends that the following Preventive Maintenance Procedure be carried out once a month to keep the Cassini System operating at peak performance.

1) Perform the regular (daily) Maintenance: Visually inspect all of the Microwave connectors between the Test Head and Fixture. Look for any physical damage, bent pins or fingers, and contamination such as dirt, metal flakes, etc. Also check the physical interface between the Fixture and Handler for signs of wear.

2) Connect the supplied RI Diagnostic Fixture to the RI Test Head and once it is Aligned (Fixture Align light changes from Red to Green), turn the Fixture switch to "Latch". The RI Test Head pneumatic docking Cam locks it in place and guarantees the correct RI mating pressure between the Fixture and the Test Head.

3) Perform the "System Verify Procedure" for each TIM, listed by Model number. From the Cassini window, press "System" button, then "Tester" to open the configuration window and select "Verify" from the "Tester" menu. Choose the appropriate configuration from the list that matches the current arrangement of TIMs and press "Select". Now select the verification Test Plans and choose "Run", "Selected". Follow any on-screen instructions, making sure the connectors are properly seated in the diagnostic fixture. This will verify that the system is meeting it's calibrated performance specifications. If there are any failures, rerun that specific Verify and document the failure. The system should be scheduled for Calibration and a service call requested.

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