The Model 4101-28 Combustible IR Gas Sensor Module utilizes Infrared technology to monitor for combustible gases over the range of 0-100% LEL. It features a digital display of gas concentration, a linear 4-20 mA output signal that can interface with most industry systems, and internal continuous self-diagnostics that automatically indicate any fault or optic problem. These units require a calibration check once a year, and have an integrated weather shield and filter to prevent dust and moisture contamination.
The system can operate in a high combustible gas and/or low oxygen environment, or in an environment where catalytic bead poisons might exist.
Sierra Monitor Corp., 1991 Tarob Court, Milpitas, CA 95035; phone: 800-727-4377; fax: 408-262-9042