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Honeywwll's CRIR M1 Commercial Carbon Dioxide (CO
non-dispersive infrared (NDIR) sensor. Within the CRIR M1 is a sensing chamber with
an infrared source at one end and a detector fitted with an optical filter at the other end.
The source emits radiation at wavelengths which include the absorption band of CO
The filter blocks wavelengths which are not sensitive to the presence of CO
increasing selectivity and sensitivity. As the light passes through the sensing chamber,
a fraction is absorbed if CO
the source and received by the detector can then be converted to a CO
reading. The Automatic Baseline Correction (ABC) function can automatically calibrate
the sensor's lowest reading over a preconfigured interval to 400 ppm CO
enhances long term stability and may eliminate the need for calibration.
See Tables 1 and 2, and Figures 1 and 2 for specifications and mounting and
dimensional diagrams.
Tel: 07788 548013
solentgasconsultants@gmail.com
Honeywell CRIR-M1 User Guide
GENERAL INFORMATION
is present. The difference between the light emitted by
2
) sensor is a single channel,
2
concentration
2
2
.
2
, thereby
2
. This
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