Product category:
Gas, Chemical, Radiation and Magnetic Sensors
News Release from: Lambda Photometrics | Subject: QMS series atmospheric sampling systems
Edited by the Engineeringtalk Editorial
Team on 23 July 2007
Atmosphere samplers monitor for gas
leaks
The QMS gas analyser is capable of sampling gases at pressures from above atmospheric to as low as 10mbar.
Available in the UK from Lambda Photometrics, Stanford Research QMS series atmospheric sampling systems offer an efficient, cost-effective solution for a wide range of gas sampling applications such as on-line process monitoring, gas analysis, leak detection, troubleshooting and much more The QMS gas analyser (mass spectrometer) is capable of sampling gases at pressures from above atmospheric to as low as 10mbar
This article was originally published on Engineeringtalk on 25 Feb 2000 at 8.00am (UK)
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It uses a two-stage pressure reducing inlet to sample gases at high-pressure and is integrated with a residual gas analyser (RGA) detector.
The vacuum pumped bypass flow design enables a response time of less than 0.5 seconds, from the tip of the capillary to the RGA chamber.
The QMS can continuously sample gases at a flow rate of several millilitres per minute, and data is acquired continuously to allow on-line monitoring; as opposed to batch sampling which is conventionally employed by gas chromatographs.
The mass spectrometer has a resolution of better than 1 amu with a detection limit of less than 1 part per million, and six decades of dynamic range for partial pressure measurements.
The QMS system is available in mass ranges of 100, 200 and 300 amu.
It is packaged in a compact unit and can be easily transported.
System operation is straightforward and does not require a detailed understanding of the quadrupole mass spectrometer, vacuum pumps or the pressure reducing inlet.
All QMS systems are supplied with a Windows-based control and analysis software package with a user-friendly graphical user interface.
For more advanced users, the probe parameters can be easily integrated into user-controlled programs through an ASCII command set.
A stand-alone partial pressure monitor is available as optional extra. Request a free brochure from Lambda Photometrics ...
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