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A Lower Explosive Limit (LEL) gas detector is an essential piece of safety equipment used to detect hazardous levels of combustible gas in an environment. It works by measuring the level of combustible gas present in the air and alerting the user when the concentration of the gas exceeds the pre-set threshold.
It is commonly used to detect the presence of flammable gases such as methane, propane, hydrogen, and other volatile organic compounds.
The LEL gas detector uses a combustible gas sensor to measure the amount of combustible gas present in the air. The sensor is sensitive to a variety of gases, and can detect them when they are present in concentrations as low as 0.5% of the Lower Explosive Limit (LEL).
The LEL is the lowest concentration at which a combustible gas or vapor can ignite in air, and is typically expressed in parts per million (ppm) or milligrams per cubic meter (mg/m3). When the concentration of combustible gas exceeds the pre-set threshold, the detector will sound an alarm to alert the user.
The LEL gas detector is a vital safety device used in a wide range of industries, including oil and gas production, petrochemical refining, and chemical processing plants.
It is also used in commercial and residential buildings, to ensure that combustible gas levels remain below the LEL threshold. By using an LEL gas detector, it is possible to reduce the risk of fire and explosions caused by combustible gas build-up.
The Global Lower Explosive Limit (LEL) Gas Detector market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The iLEL100 Probe, developed by Extronics (UK), can be used to directly insert into an extraction or process exhaust duct to monitor a gas’s flammability (also known as its Lower Explosive Limit, or %LEL) or to check for a variety of toxic gases.
The goal of the Extronics iLEL100 direct process insertion probe’s design was to lower significant maintenance expenses in addition to expensive setup and commissioning fees. System blockage is a major worry for operators of extractive systems since the sample may concentrate inside the extraction system. A blockage results in costly downtime while the issue is being fixed.
The iLEL100 probe was developed by Extronics to be as simple as possible; it does not have any pumps, aspirators, filters, long sample lines, narrow bore tubing, hot lines, coolers, or condensate vessels.
The entire probe assembly is made of stainless steel and is placed in situ, so the sample path is very short. The probe is maintained at the process temperature, which eliminates the need for heated lines or condensate devices and reduces response time to an absolute minimum, which is crucial for safety applications. Narrow bore pipe work was replaced with pipe diameters between 10mm and 40mm.
In order to house the conditioning systems, analysers, and sensors in extractive systems, remote panels or enclosures are frequently needed. If the area outside the process is classified as “Hazardous” by the ATEX Directive, the panels or enclosures may need to be placed far away in a safe location. The ATEX Directive was followed in the design of the Extronics iLEL100, which has certification for usage in Zone 1 environments.
The iLEL100 probe is so easy to install that all that is needed is to insert a flange at the process analysis point and wire it back to a panel. The probe assembly’s calibration nipple permits gas to be pushed past the sensor’s head twice a year.
