Leak detectors with quadrupole mass spectrometer

Leak detectors with quadrupole mass spectrometer (ECXDTEC II)... 

INFICON builds leak detectors with quadrupole mass spectrometers to register masses greater than helium. Apart from special cases, these will be refrigerants. These devices thus serve to examine the tightness of refrigeration units, particularly those for refrigerators and air conditioning equipment. 

In principle, a helium leak detector detects the partial pressure of a tracer gas in vacuum with a suitable sensor. Small mass spectrometers have become common as a sensor, especially small magnetic sector-field mass spectrometers with permanent magnets. Also the quadrupole mass spectrometer well known from residual gas analysis can be found in some leak detectors. 

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