IR2100 Combustible Gas Detector Is SIL 2 Suitable

The IR2100 Detector is now suitable for SIL 2 applications. In addition to its new rating, the hydrocarbon gas detector has the CE Marking and is certified by FM, CSA, ATEX, and GOST. The highly intelligent IR2100 continuously monitors hydrocarbon gases and vapors within the lower explosive limit (LEL). It features a true fail-to-safe operational design for superior performance without relying on a sintered flame arrestor, which can clog and degrade performance.

The IR2100's gas sensor measures the absorption of IR radiation passing through gas using a dual beam, single-detector method of operation. The IR detector measures the intensity of two specific wavelengths: one at a reference absorption wavelength and the other outside of the absorption wavelength. The combustible gas concentration is determined by comparing these two values.

The IR2100's gas detection sensor features heated IR optics, which eliminate condensation for superior detection reliability. Its microprocessor logic also allows it to discriminate between dirty optics that require cleaning and other potential faults. The detector operates with a 4-20 mA analog output that is proportional to 0 to 100% LEL gas concentration.

All electronics are contained within an explosion-proof housing so that the IR2100's detector information can be processed locally. RS-485 serial communications are MODBUS RTU compatible. The RS-485 output provides status, alarm, fault and other information for operation, troubleshooting, and maintenance of the unit.