NDIR500

Conventional analyzers

The Non-Dispersive Infra Red (NDIR) measurement technique is the industry-standard method of measuring engine exhaust carbon monoxide (CO) and carbon dioxide (CO₂). Conventional NDIRs have response times of 1-2 seconds, and are typically used to measure "bag emissions" where the concentration changes very slowly.

A need for fast emissions analyzers

During the 1-2 seconds it takes a conventional NDIR to respond, an engine will undergo many firing cycles. The conditions inside the combustion chamber can vary significantly between successive firing cycles- particularly when the engine conditions are changing rapidly such as during engine start or speed/load transients. The Cambustion NDIR500 has a time response as low as 8ms T_10-90%. This allows the NDIR500 to distinguish between two adjacent firing cycles, and even offer information about the variation in CO and CO₂ concentration during a single exhaust stroke.

Benefits of fast emissions analyzers

Accurate measurement of exhaust emissions brings valuable insights into engine operation, and assists calibration engineers in reducing the engine out emissions. This can assist in emissions compliance while reducing after-treatment costs.

The brochure may be downloaded here.

See Applications and sample data.

Contact Cambustion for more information and prices.