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Water Measurement in Pure Ethylene

 
The SpectraSensors TDL analyzer is the ideal solution for Ethylene purity applications. The use of Tunable Diode Laser technology means that analysis results can be updated every second. Furthermore, the high resolution that is inherent to the laser eliminates errors due to interferences, which have hampered other spectrometric approaches. Also, the non-contact nature of the measurement with no moving parts in the analyzer means it is simple to operate and little routine maintenance is needed. SpectraSensors applies differential spectroscopy where the sample is dried using a metal getter technology and the background spectrum of the sample is collected. The dryer is then bypassed and the wet sample spectrum is collected. The dry spectrum is subtracted from the wet spectrum to get a sensitive measurement free of background gas interferences. The dryer has a typical lifetime greater than 18 months, and is the only consumable part of the analyzer. In addition to water, trace Acetylene measurements can be made using TDL technology.
 
                                          Application Note 55001/58001
                                          CSA Typical Drawing
                                          ATEX Typical Drawing
 

Products

Model Description  Certification
SpectraSensors SS2100 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
CSA Class I Division 2
SS2100a
SpectraSensors SS2100a Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX Zone 2
SpectraSensors SS2100i-1 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX and IECEx Zone 1
SpectraSensors SS2100i-2 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX, IECEx and GOST-R Zone 1