Raman spectroscopy - advanced optical analysis technology
Boost plant safety, ensure product quality, and optimize operations. Raman spectroscopy measures the composition and molecular structure of your samples from lab-to-process in real time.
 
                  
532 nm, 785 nm, 1000 nm
Metal: C276 alloy, 316L stainless steel, or Grade 2 titanium
Window: High-purity sapphire
ATEX, CSA, IECEx, UKCA, JPEx
The Raman Rxn-40 probe is a sealed immersion probe for in situ Raman spectroscopy of liquid-phase samples in a laboratory or process plant setting. The process connection for the Raman Rxn-40 can be swaged, compression-mounted, flange-mounted, or installed in an Endress+Hauser flow cell, and is NeSSI compatible. These versatile options allow for direct insertion in slip-streams, drain-values, reactors, circulation loops, blend headers, and inlet or outlet pipework.
Chemical: reaction monitoring, blending, catalysis, feed and final product monitoring
Polymer: polymerization reaction monitoring, extrusion monitoring, polymer blending
Oil & Gas: fuel blending, fuel characterization
Pharmaceutical: API reaction monitoring, crystallization, polymorph, blending
Customizable to your process
Robust design with a range of process connections
In situ/no transfer lines or fast-loops required
Faster, simpler installation
Support for a range of chemical processes and corrosivity requirements
Ensures safety and meets regulatory requirements
Suitable for hazardous/classified environments
High-end products
Technical excellence
Simplicity
 
                              Standard products
Technical excellence
Simplicity
Specialized products
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
| 
 Fundamental selection Meet your basic measurement needs | Technical excellence | Simplicity | 
| 
 Lean selection Handle your core processes easily | Technical excellence | Simplicity | 
| 
 Extended selection Optimize your processes with innovative technologies | Technical excellence | Simplicity | 
| 
 Xpert selection Master your most challenging applications | Technical excellence | Simplicity Variable | 
System design and specifications for the Raman Rxn-40 probe
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                                                                02/09/2025
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                                                                13/12/2024
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                                                                08/12/2023
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                                                                10/08/2023
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                                                                03/08/2022
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| Language: | English | 
| Version: | 02/09/2025 | 
| File size: | 1.2 MB | 
| File name: | TI01655CEN_0625.pdf | 
                                                          Commissioning, operation, and maintenance details
for the Raman Rxn-40 probe
                                                      
| EN | |||
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                                                                31/10/2025
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                                                                02/12/2024
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                                                                10/08/2023
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                                                                03/08/2022
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                                                                28/09/2021
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| Language: | English | 
| Version: | 31/10/2025 | 
| File size: | 1.6 MB | 
| File name: | BA02181CEN_0525.pdf | 
Quick start guide for the Raman Rxn-40 probe
| EN | |||
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                                                                02/12/2024
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                                                                10/08/2023
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                                                                03/08/2022
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                                                                28/09/2021
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| Language: | English | 
| Version: | 02/12/2024 | 
| File size: | 1.4 MB | 
| File name: | KA01555CEN_0424.pdf | 
                                                          Hazardous area certifications and installation instructions
for the Raman Rxn-40 probe
                                                      
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                                                                21/06/2024
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                                                                08/08/2023
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                                                                03/08/2022
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                                                                07/10/2021
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| Language: | English | 
| Version: | 21/06/2024 | 
| File size: | 1.3 MB | 
| File name: | XA02749CEN_0424.pdf | 
                                                          Ein Leitfaden zu unseren Anwendungshinweisen zur
Raman-Spektroskopie für die Life-Science-Industrie
(Raman Rxn2-Analysator, Raman Rxn4-Analysator,
Rxn-10-Sonde, Rxn-20-Sonde, Rxn-45-Sonde,
Rxn-46-Sonde und  Zubehör für Sondenoptiken
(blO-Optic, Raman- Single Use-Optiksystem
/ SUB, Immersionsoptik, berührungslose Optik)
                                                      
| Language: | German | 
| Version: | 24/09/2025 | 
| File size: | 1.4 MB | 
| File name: | PU01447CDE_0222_Raman-Anwendungsleitfaden_LSI_web.pdf | 
                                                          An overview brochure about our Raman Rxn5 analyzer (including
the Raman Rxn-30 probe, the Rxn-40 probe,), a Raman spectroscopy
analyzer system for gas phase measurements powered by Kaiser Raman
technology.
                                                      
| Language: | English | 
| Version: | 07/01/2025 | 
| File size: | 499.4 KB | 
| File name: | PU01444CEN_0225.pdf | 
                                                          A case study demonstrating how Borealis used an
Endress+Hauser's Raman spectroscopy analyzer system (including
a Raman Rxn2 analyzer and Rxn-40 probe) to monitor slurry
polymerization in the Chemical industry.
                                                      
| Language: | English | 
| Version: | 01/10/2024 | 
| File size: | 10 MB | 
| File name: | CS01924CEN_0124.pdf | 
                                                          A case study describing Melamin's use of our Raman spectroscopy
systems (Raman Rxn2 analyzer and Rxn-40 probe) to improve safety
through accurate solvent identification.
                                                      
| Language: | English | 
| Version: | 09/06/2025 | 
| File size: | 1.2 MB | 
| File name: | CS01970CEN_0125.pdf | 
                                                          This case study examines how USN used Raman spectroscopy,
including a Raman Rxn2 analyzer and a Rxn-40probe, to monitor
CO2 capture solvent quality in the chemical industry (note: this
application would also work with a Raman Rxn4 analyzer / the
oil & gas industry).
                                                      
| Language: | English | 
| Version: | 31/01/2022 | 
| File size: | 876.1 KB | 
| File name: | CS01714CEN_0222.pdf | 
                                                          Erfolgsgeschichte Überwachung der Qualität
von Polypropylen und Polyethylen bei
Olefin-Polymerisationsreaktionen
in kontinuierlichen Loop-Reaktoren bei Borealis
                                                      
| Language: | German | 
| Version: | 27/05/2025 | 
| File size: | 1.1 MB | 
| File name: | CS01924CDE_0124.pdf |