This application guide explains Vaisala infrared CO2 sensor technology, comparing single-beam and dual-wavelength designs and highlighting the benefits of…
Modern ventilation systems use CO2 sensors to optimize fresh air intake and energy consumption. This document outlines key performance standards required by regulations, such as those in California, which mandate specific accuracy levels at sea level and 25°C. It details the Non-Dispersive Infrared (NDIR) working principle where CO2 molecules absorb radiation at a wavelength of 4.26µm. This manual is written in Chinese.