Offered in lengths up to 1.2 m with 27 mm diameter, FPT-850EL Extended Length Probe delivers remote sensing using standard Near-IR analyzer. Proprietary sealing technique consists of direct sapphire to metal welded pressure seal, providing high degree of chemical resistance since materials in contact with process are sapphire, high nickel alloys, and thin flash of gold or PTFE. Elimination of internal optical fibers and elastomeric seals enables long term operation at temperatures to 400°C.
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