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Gas & Flame Detection Systems

Gas Sensors

A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak or other emissions and can interface with a control system so a process can be automatically shut down. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to human life. It is widely used in manufacturing industries also used in rail tunnels for detection of poisonous gases like carbon monoxide. It is used in oil and gas industries to detect leakage of inflammable gases generating and alarm at very early stage of leakage and generating control signal for shut down of equipment, preventing any major fire accident.

UV Flame Detector

This fire detection technology focuses on detecting heat, smoke or flame. These are three major characteristics of the fire. A UV detector uses a sensor that detects radiation emitted in the range of bandwidth 185 nm to 260 nm. The UV radiation is the fastest method for fire detection because the first energy released from a fire source is the ultraviolet. This energy travels through air at the speed of light and it is not dissipated by the air currents. UV Flame Detector is an optical device; therefore, they can response to flame less than second. The Ultraviolet flame detector detects flames by sensing the ultraviolet (UV) radiation produced during a combustion process. This type of detector can provide an extremely fast response time.

IR Flame Detector

IR (Infrared) flame detectors monitor the heat radiation generated by fire and open flames, with a response time of roughly 3 to 5 seconds. Working within the infrared spectral band, these flame detection systems have a sensitivity range between approximately 4.3 to 4.4 micrometres. An IR detector is a pyroelectric sensor that is capable of detecting thermal radiation and is rather sensitive to variations of the received light signal.

UV-IR Flame Detector

UV-IR Flame Detector is a combination of a UV and IR flame detector which utilizes a microprocessor for sophisticated electronic signal analysis. When a UV optical sensor is integrated with an IR sensor, a dual band detector is created that is sensitive to the UV and IR radiation emitted by a flame. The combined UV-IR flame detector offers increased immunity over the UV detector, operates at moderate speeds of response, and is suited for both indoor and outdoor use. However, UV / IR combined detectors suffer from the combined limitations of UV and IR detectors.