Recent content by Michael Koch

I also figured out which of the 14 potentiometers must be adjusted for shifting the mass result. Now my two mass spectrometers are both working fine and have the peaks exactly where they should be. Michael

Good news. The repair was successful. The defect component revealed itself by a smoke signal. Michael

I did already contact the servicing company in Germany last week, but got no reply so far. May be they don't want to share the manual.

Unfortunately these manuals aren't close enough. The leak detectors have a mass separator with a magnetic field, and they are tuned only for helium with mass 4. However the PGA 100 has a quadrupole separator and is tunable from mass 1 to 99. I have two PGA 100 instruments and one of them is...

Here is the cover page of the manual and the second page, where the required supplement is mentioned.

I wouldn't ask here if I hadn't already tried Google and the manufacturer. It's an old instrument and out of service for many years.

I have a Leybold PGA 100 mass spectrometer, including the instruction manual. The instrument is paired with a gauge head. If either the instrument or the gauge head is exchanged, then an alignment is required. It's mentioned in the instruction manual there exists a supplement, which contains the...