Sample Preprocessing Series

CHANG AI’s sample preprocessing series is the backbone of reliable gas analysis, designed to condition raw process gas for accurate measurement. We offer filters, dryers, coolers, and pressure regulators, all engineered to remove moisture, dust, and contaminants without altering gas composition. Our preprocessing units are modular and customizable, so you can build a system that fits your exact sample conditions—whether you’re dealing with high-temperature flue gas or corrosive biogas. We understand that poor sample preparation ruins even the best analyzers, so our engineers will help you design a preprocessing train that ensures clean, stable samples, with ongoing support to keep your system running smoothly.