The pump unit requires little or no maintenance. Because the MODION® pump power supply is encapsulated, all servicing on this unit must be done by the manufacturer.

Whenever the pump unit is temporarily removed from the vacuum system, it should be stored in a clean, dry vacuum. It is important that the following points be followed before placing the unit in service again (flange mounted units).

  • Inspect the UHV mounting flange for nicks, scratches, and other defects along with the knife edge seal.
  • Inspect and clean the mouth of the flange with appropriate solvent to remove debris, oil, deposits, and other foreign material.
  •  Make sure all power supply to pump fasteners are present and tight to avoid a possible shock hazard.

To learn more about the maintenance and service of ion pumps, please download the MODION Instruction Manual.

Please contact us at 724-523-9610 to speak with one of our Ion Pump Technicians or email us at