INFICON Sensistor ILS500F Leak Detection System - Manual (Page 62)

Maintenance Instructions 62
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9 Maintenance Instructions
There are three different parts that needs regular maintenance:
• Venturi Pump
Needs regular cleaning.
• Gas Valves
Needs regular cleaning and wears out.
• Pilot Valves
Maintenance free if incoming compressed air is dry and filtered to 5
μ m.
Changing Venturi Pump and all Gas Valves takes less than 15 minutes.
9.1 Maintenance Plan
*Depends on the amount of particulates in the objects tested. Metal burrs and other
sharp particles will wear the valves down, requiring shorter maintenance intervals.
Part Interval Action
Venturi Pump 3 months Perform a Hardware Test.
Check Ultimate Vacuum.
Clean venturi nozzles when necessary.
Evacuation, Fill and
Test Port 2 Valves 3-6 months* Perform a Hardware Test.
Check condition of valves.
Replace or clean valves when necessary.
Vacuum Sensor Valve 12 months Perform a Hardware Test.
Check condition of valve.
Replace or clean valve when necessary.
Pilot Valves 12 months Change valve if unexpected pressure
builds.