Thermo Scientific DSQ II, Hardware Manual

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2
Maintaining the DSQ II
Recommended Maintenance Schedule
Thermo Scientific DSQ II Hardware Manual 23
Recommended Maintenance Schedule
To perform maintenance on the DSQ II, you will need to disassemble, clean, and replace
particular components.
Table 2 is a factory recommended maintenance schedule based on
running multiple samples eight hours a day. You can adapt the schedule according to the
cleanliness of your samples and the number of analyses you make per day. We recommend
that you keep a maintenance log of the DSQ II service so that you can identify variations in
normal operation, which will make maintenance even easier when the need arises.
Table 2. Recommended Maintenance Schedule
Procedure Replace 1 Month
4 or 6
Months As
Needed*
Cleaning the Ion Source Components (see page 38 ), which may include:
• Cleaning the Ion Volume with an Inlet Valve (see page 38 )
• Cleaning the Ion Volume Without an Inlet Valve (see page 43 )
• Cleaning the Ion Source, Lenses and Prefilter (see page 45 )
• Replacing the Ion Source Filament (see page 53 )
Replacing the Electron Multiplier (see page 59 ), which may include:
Maintaining the Turbomolecular Pump (see page 62 )
Maintaining the Rotary-Vane Pump (see page 62 ), which may include:
• Checking the Oil Level of a Rotary-Vane Pump (see page 63 )
• Adding Oil to a Rotary Vane Pump (see page 64 )
• Purging Gas from the Oil in a Rotary-Vane Pump (see page 65 )
• Changing the Oil in a Rotary-Vane Pump (see page 67 ) ** **
Maintaining Components Outside the Vacuum Manifold (see page 70 )
* As Needed depends on how close the component is to the sample introduction point. For example, the Ion Volume is closer to the sample
introduction point than any other component and requires the most frequent cleaning.
** Perform every month if you use ammonia as a chemical ionization reagent gas.