Pfeiffer Vacuum PrismaPro QMA 250 F1, Translation Of The Original

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Symptom / malfunction
messages
Possible causes Remedy
Poor peak shape
(Poor peak shape) Analyzer contaminated ● Degas the ion source.
● Bake out the analyzer.
● Replace the filament unit and/or the ion source.
● Replace the analyzer.
● Contact Pfeiffer Vacuum Service .
System pressure too high ● Ensure that the pressure is below the maxi-
mum operating pressure: < 5 × 10 -4 hPa.
Ion source parameters faulty. ● Contact Pfeiffer Vacuum Service .
Mass filter defective or contaminat-
ed
● Contact Pfeiffer Vacuum Service .
Ion source or analyzer magnetized ● Rectify the cause of the magnetic fields.
Ion source or analyzer in close
proximity to magnetic fields
● Rectify the cause of the magnetic fields.
Mass calibration necessary ● Carry out a mass calibration.
Error in the electronic unit (QME) ● Contact Pfeiffer Vacuum Service .
High noise level
(High noise level) System grounding ● Make sure that the vacuum system is ground-
ed.
Scan speed is too quick for the am-
plification setting
● Increase the dwell time (Dwell).
● Contact Pfeiffer Vacuum Service .
Electronic unit (QME) not attached
to the analyzer correctly
● Make sure that the electronic unit (QME) has
been completely pushed onto the analyzer .
● Ensure that the contacts are straight and are
not bent or damaged.
Electron multiplier defective or
worn
● Check the gain of the electron multiplier.
● Replace the analyzer.
● Contact Pfeiffer Vacuum Service .
Error in the electronic unit (QME) ● Contact Pfeiffer Vacuum Service .
Low sensitivity ● Refer to the operating and measuring error
"Low sensitivity".
Tbl. 17: Operating and measuring errors
10.1.4 Calling software error messages from PV MassSpec
Symptom / malfunction messages Possible causes Remedy
PV MassSpec error You can find error messages and remedies in the help files for PV MassSpec.
Tbl. 18: Software error messages from PV MassSpec
Malfunctions
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