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Note: The power and data connectors are hermetically sealed on this radar model and so covers are not required to form a gas-tight seal.
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  1. Insert the pressure test gauge into the hole vacated by the pressure plug and tighten it to form an airtight seal with the enclosure.
           

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  2. Attach a hand or foot pump to the Schrader valve of the pressure test gauge and pressurise the enclosure to exactly 1 psi.

  3. Remove the pump from the pressure test gauge.

  4. After 10 minutes check the gauge. The pressure should remain at or around 1 psi (any heated internal components could cause the pressure to increase slightly). If the pressure has dropped by more than 10%, then the test has failed and your options are to either locate and correct the cause of the leak or return the enclosure to Navtech Radar for a wet pressure test. IMPORTANT: Do not put a radar unit that has failed the dry pressure test back into service.

  5. If this dry pressure test is successful, remove the pressure test gauge and place the new breather valve (supplied in the service kit) into thehole. Use a 16mm spanner to tighten to a torque of between 0.6 and 0.8Nm - do not over tighten.

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Apply a new warranty seal to bridge the join between the radome and the chassis.
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The radar unit is ready for operation and can be returned to its mounting position.

  1. To fully complete the service procedure, you need to register the service date within the radar sensor. Please see the section 3.2 - Setting the service date and checking vital signs for details.


Next: 3. Confirming sensor operation