The FPT-855 Near-IR Transmission Probe features an integral heating jacket that virtually eliminates the occurrence of fouling due to condensation of product on the probe surfaces. FPT-850 near-IR, visible and ultraviolet transmission probes were developed to provide long-term reliability under the extreme conditions of high temperature, thermal shock, and aggressive chemistries. One key design element is a proprietary sealing technique involving a direct sapphire-to-nickel-alloy welded pressure seal, which eliminates fatigue and stress failures common with brazed seals, as well as the limited lifetime characteristic of elastomeric seals. Another key element is the elimination of optical fibers within the probe, providing for reliable, long-term operation at temperatures as high as to 400ºC. — Axiom Analytical Inc., Tustin, Calif.
This fiber-optic transmission probe eliminates fouling
| By Chemical Engineering