A medium duty heated Prefilter unit is installed in the 19″ Rack housing of the analysers. The Prefilter is fitted with a choice of either one (361) or two (362) filter streams (for either two sample points, pre/post cat or twin cells). The units incorporate a heated head sample pump, gas distribution needle valve manifold, back pressure regulator. The unit provides 3 heated outputs and 1 cold output to a chiller or cooler/dryer.

Inside the Heated Sample Line: Why Temperature Integrity Matters in Gas Analysis
In the realm of precise gas analysis, particularly within continuous emissions monitoring systems (CEMS) and process control applications, the integrity of the sample from the point of extraction to the analyser is paramount. A critical, yet often underestimated, component in maintaining this integrity is the heated sample line. Failure to