How it works

The Teledyne API CO Ultra Sensitive Gas Filter Correlation Analyser Carbon Monoxide Analyser (Model T300U) has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network.

Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyser.

The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift. The objective and field mirrors in the sample cell are gold plated to maximise signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimises water interference caused by ambient humidity changes. Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber. This Auto Reference function corrects zero drift and reduces the effect of interferences.

Servicing

Servicing information