Raman Immersion Probes

Raman Immersion Probes

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Our RP2 and RPR Raman immersion probes are ideal for in situ measurement of clear or turbid solutions. The probes are available for 532 nm, 785 nm and other excitation wavelengths, with FC and SMA 905 connectors for excitation and collection fibers.

RP2 lab probes are distinguished by a stainless steel immersion sleeve that’s adjustable for different working distances. RP2s can be heated to 200 °C but are not designed for high-pressure use. For high-pressure applications we offer the RPR probes, which are rated to 1500 psi and can be heated to 200 °C.  RPRs are best suited for process environments, with robust probe materials, chemically resistant welded seals and other industrial-grade components.

  • In situ analysis – immerse probes directly into solutions for real-time measurements
  • Lab and process versions – probe designs for variety of immersion environments
  • Adjustable working distance – change working distance for clear or turbid solutions
  • Deep laser line blocking – OD 8 attenuation of the Rayleigh line

Engineering Specifications RP2 Probes RPR Probes
Excitation wavelengths: 532 nm and 785 nm (standard) 532 nm and 785 nm (standard)
Spectral range:* 250 – 3900 cm-1 250 – 3900 cm-1 
Laser line blocking: OD 8 OD 8
Sampling head: Stainless steel Stainless steel
Immersion sleeve: Stainless steel Hastelloy
Physical resistance: 200 °C 200 °C  and 1500 psi
Probe length: 230 mm (8”) 330 mm (13”)
Probe diameter: 15.9 mm (5/8”) 15.9 mm (5/8”)
Working distance: Adjustable w/sliding immersion sleeve Adjustable from <1 mm to 5 mm with removable immersion sleeve
Fiber configuration: Excitation and collection fibers; 0.22 NA Excitation and collection fibers; 0.22 NA
Fiber length: 5 m 5 m
Fiber connectors: FC (standard) and SMA 905 FC (standard) and SMA 905

*Ultimate spectral range depends on detection range of the spectrometer, and may be more limited

Applications in which this product is used:

Measurement Techniques in which this product is used: