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Raman Spectroscopy » Raman Sampling » WetHead Probe

WetHead™ Liquid-phase Raman Immersion Probe


The WetHead™ probe from Kaiser Optical Systems, Inc, is a compact, sealed immersion probe for in situ Raman spectroscopy of liquid-phase samples in a laboratory or process plant setting.

The design of the WetHead™ Raman probe promotes versatility and materials compatibility, both critical factors for process applications. The process connection for the WetHead™ can be swaged, compression-mounted, NeSSI, sample location custom flange-mounted, or via a Kaiser flow cell. These options allow for direct insertion in slip-streams, drain-values, reactors, and inlet or outlet pipework.

The WetHead™ is compatible with installations in hazardous areas / classified environments, and the probe design has been certified to meet both North American and European (ATEX) standards.

Probe Features:

  • In situ Measurement / No Transfer Lines Required
  • Compatibility with all Kaiser Raman Analyzers
  • Compact Profile
  • Industry Standard Installation Options
WetHead™ Liquid-Phase Probe
Laser Wavelength: 532nm, 785nm, 1000nm
Spectral Coverage: 175-4325 cm-1 (532nm),
150-3425 cm-1 (785nm),
200-2400 cm-1 (1000nm)
Laser Power:
Maximum Laser Power
into Probe Head:
500 mW
Sample Interface:
Pressure (at tip): 3000 PSI
Temperature (for shaft length less than 6 inches): –196 to + 150°C
Temperature (for shaft length 6 inches or longer): –196 to + 450°C
(probe head):
–40 to + 150°C
(fiber cable):
–40 to + 80°C
Up to 30°C / min
Fiber Optic Cable:
Design: PVC Jacketed, Proprietary Construction
Connections: FC at Analyzer
Length: 5 M (16 ft) Standard, Custom Lengths Contact Kaiser
Temperature: -40°C (Min) / 80°C (Max)
Min. Bend Radius: 12.7 cm (5")
ATEX : ATEX II 2/1 G Ex ia op is IIA or IIB or IIB+H2 or IIC T3 or T4 or T6 Ga
North American
Hazard Area:
Ex ia IIC T4
Class I Zone 0 AEx ia IIC T4
Class I Division 1 Groups A, B, C and D T4

Product Material
WetHead™ Liquid-phase Raman Probe
Product Flyer

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