A classified area mid-infrared analyzer designed for outdoor use will typically have a temperature range where it can operate without additional sheltering. For instance, ReactIR 45P in situ Process FTIR has a usable environmental temperature range of 32 °F – 95 °F (0 °C – 35 °C). For climates where the temperature is colder or warmer than these limits, a suitable instrument shelter is required.
Lonestar Shelters (Ponder, TX) design and fabricate custom shelters for analyzers that include classified area appliances such as heating and air conditioning. In addition, they prepare shelters for integration to utilities and plant control systems (DCS / PLC) including dry gas, electrical supply, and fiber optic communication. The shelters can also accommodate infrared transmission optics including AgX fiber and mirrored conduits.