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Moisture in Polyethylene Feedstock

 
The SpectraSensors’ TDL analyzer is the ideal solution for moisture in polyethylene feedstock 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. The non-contact nature of the measurement with no moving parts in the analyzer means that the analyzer 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.
 
                                          Application Note 55001/58001
                                         CSA Typical Drawing - 55001
                                         ATEX Typical Drawing
                                         CSA Typical Drawing - 58001
 
 

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