An essential part of any facility that uses chlorine for disinfection or chemical manufacturing, a chlorine gas detector isn’t just about ticking off safety protocols. It’s about saving lives, preserving health, and maintaining the continuity of operations in industries that depend on this volatile chemical.

Equipped with chlorine gas detector sensors, a chlorine monitor can detect the presence of chlorine in the air and determine its concentration levels. The working electrode in the sensor is able to measure a current produced by the absorption of ultraviolet radiation by chlorine molecules present in the sample. The counter electrode completes the circuit. The resulting data is converted to an electrical signal that’s transmitted to the display. Combined with an alarm system, this device can instantly warn onsite personnel about a dangerous buildup of chlorine.

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Chlorine (Cl2) is a greenish yellow gas with a distinctive pungent odour and can be highly toxic if inhaled. It irritates the mucous membranes and can burn skin. It’s also a highly reactive substance that can react explosively or form deadly compounds with other substances such as acetylene, ether, turpentine, hydrogen, and ammonia.

In order to work properly, chlorine gas detectors need to be regularly maintained and calibrated. This involves exposing the sensor to a certified concentration of the gas for a period of time to ensure that its readings remain accurate over time. This is known as a bump test and it’s usually done at the start of every day. A full calibration should be carried out every six months and should only ever be conducted by qualified individuals with experience in the field.