Vapor Probe (G-SST)

G-SST Vapor Probe, 50 cm Pathlength

Vapor Probe Features

• Glass windows protect optical surfaces
• High optical efficiency, > 50% transmission
• Long pathlength, 50cm for greater accuracy and stability
• Rugged design
• SMA 905 fiber optic interface, all fiber sizes
• Single-sided design, no need for fiber cable feed-throughs
• Can be installed in vapor feed, return lines or sterilization chamber
• Works in vacuum (10-5 Torr) or up to 2 atm absolute
• Operates in environment from 0°C to 90°C
• P/N 19360-11050

• 2 inch (50.8 mm) Tri-Clover port or 2 inch (50.8 mm) KF port
• Electropolished 316 stainless steel or anodized aluminum body material

Next Generation Design For Easy Servicing and Repairs

For hydrogen peroxide or other vapor applications, the 50cm G-SST Vapor Probe provides an efficient, simple and easy interface between the vapor chamber, and Guided Wave’s Hydrogen Peroxide Vapor (HPV) analyzers or other spectrometer or photometer. The probe clamps into a standard 2 inch Tri-Clover® sanitary fitting and can be mounted in the vapor chamber, feed line, or return line. Since both source and return fibers are on the same end of the probe, and external to the process, there are no fiber cables to seal. The optical path is folded, providing 50cm of interaction with the gas in a compact 25cm probe body. This means more accuracy and stability for low vapor concentrations.


Standard Probe Lengths 11.61in (29.49 cm), Insertion length 11.01 in (27.96 cm)
Pathlength 50 cm; double pass 25cm
Probe Diameter (inches) Flange 2.52 in, Probe Body 1.5 in, Insertion Body 1.74 in
Flange mount 2 in (50.8 mm) Tri-Clover or 2 in (50.8 mm) KF Flange Mount
Spectral Range NIR (600 - 2100 nm)
Optics Glass is gold-coated mirror
Fiber Diameter (μm)/Connector 200 μm – 600 μm; SMA 905
Efficiency ≥ 50% (900 nm – 1650 nm)
Temperature Range 0 °C to 90 °C
Pressure Range 1 x 10-5 Torr to 1520 Torr (2 atm)
Body Material SS316 standard, Electropolished or Anodized Aluminum
Window Material BK-7 glass
Seal Viton Sanitary Flange Gasket, Viton O-rings