The GG-LEL2 Combustible Gas Sensor is a specialized device designed to detect and monitor potentially explosive levels of combustible gas vapors in air within the range of 0-100% LEL. It utilizes catalytic-bead sensor technology with a matched pair of detector elements, where the active bead catalyzes the oxidation of gas, generating heat and changing its resistance. This change in resistance is measured across a bridge circuit to provide an accurate output. The sensor offers an industry standard linear 4-20 mA output signal proportional to the LEL of the target gas, making it compatible with most gas detection systems and PLCs. It is engineered for long life in harsh industrial environments, with a typical sensor life of 5-8 years, and is field replaceable for simple and low-cost maintenance. The GG-LEL2 is useful for activation of electrical shunt-trip, ventilation, or fuel supply shutoff systems, serving as the last line of defense against catastrophic failure. Key benefits include low cost explosion protection, long sensor life, and simple operation and calibration.
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