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QMS100/200/300 — 100 amu, 200 amu, and 300 amu systems

QMS100/200/300 — 100 amu, 200 amu, and 300 amu systems
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QMS100/200/300 — 100 amu, 200 amu, and 300 amu systems - 1

• 100, 200 or 300 amu systems • Pressures from 10 mbar to 1 bar • Better than 1 amu resolution • <0.5 second response time • Compact, transportable design • 6 decades of dynamic range • RGA Windows software • RS-232 computer interface • QMS100... $23,000 (U.S. list) • QMS200... $24,000 (U.S. list) • QMS300... $25,500 (U.S. list) QMS Series Atmospheric Sampling Systems QMS series gas analyzers offer an efficient, cost-effective solution for a wide range of applications. These mass spectrometers simplify the task of on-line process monitoring, analysis of gas species, leak detection, and troubleshooting. On-Line Monitoring The QMS system can continuously sample gas at low flow rates of several milliliters per minute. The inlet can be equipped to sample at pressures from 1 bar to 10 mbar. Data is acquired continuously, as opposed to batch sampling which is employed by gas chromatographs. The QMS system has a fast response time of less than 0.5 seconds. Complete spectra can be recorded in seconds, and individual masses can be measured at rates up to 25 points per second. Compact, User-Friendly Design An advanced quadrupole mass spectrometer design, coupled with state-of-the-art pumping technology, allows the entire system to be integrated in a small, transportable package. The sampling inlet valves and pumps can be controlled from the front panel. Operation is easy and does not require a detailed understanding of the quadrupole or the pressure reducing inlet. Since the pumps contain no oil or other liquids, gravity has no effect on them which allows the unit to function either standing upright or laid on its side. Capillaries are used as sampling probes and are available in a variety of materials and sizes for different applications. 'SRS Stanford Research Systems

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QMS100/200/300 — 100 amu, 200 amu, and 300 amu systems - 2

QMS100/200/300 Atmospheric Sampling Systems Principle of Operation The QMS uses a two-stage, pressure-reducing inlet to sample gases at high pressure. This allows the use of a residual gas analyzer (which operates at high vacuum) as the detector. Different capillaries permit the system to sample at higher or lower ressures. A large flow is drawn through the p capillary which drops the pressure three decades. A hybrid alarms, and comprehensive on-line help. Probe parameters can also be ontrolled and monitored through a high-level c ASCII command set which allows easy integration into user c...

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QMS100/200/300 — 100 amu, 200 amu, and 300 amu systems - 3

Inlet Type Flow rate Pressure Mass Spectrometer Type Detectors plier Range Resolution Detection limit Operating pressure Connections Inlet Computer interface Software System High-vacuum pump Diaphragm pump Materials Construction Insulators Capillary (available in stainless steel and PEEK) 1 to 10 milliliter per minute at atmospheric pressure 10 mbar to greater than 1 bar (depending on capillary) Quadrupole Faraday cup and electron multi-100, 200 or 300 atomic mass units Better than 0.5 amu at 10 % of peak height <1 ppm 5 x 10-6 mbar %" Ultra-Torr® fitting RS-232C, 28.8 kbaud, DB9 connector...

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