Hydrocarbon compound detector DEX-3R organic compounds, 20/40% LEL, F4-B design, IR sensor, brass housing DEX-3R/N

Organic gas detectors – safety and reliability

Detectors of the DEX/F series are devices designed for continuous monitoring of hazardous concentrations of gases or liquid vapors in enclosed spaces. They signal exceeding two alarm thresholds, ensuring a quick response in hazardous situations. Explosion-proof construction and the ability to cooperate with various control modules make them a versatile solution for both professional installers and end-users.

Application and functionality

DEX/F detectors find application in a wide range of industrial, commercial and public utility facilities where there is a risk of explosion, poisoning or fire. They can be used in:

• Chemical and petrochemical industry
• Refineries and oil processing plants
• Mines and mining plants
• Warehouses and storage of flammable substances
• Boiler rooms and premises with gas installations
• Car workshops and other service facilities
• Ventilation and air conditioning systems

Thanks to the modular design, DEX/F detectors can be easily adapted to specific application needs. Replaceable sensor modules allow for precise measurement of various gases and vapors, as well as quick replacement of damaged elements without the need to disassemble the entire device.

Design and product features

The DEX-3R/N detector is a model designed to detect hydrocarbon compounds in the range of 20/40% Lower Explosive Limit (LEL). It has a housing made of brass, which ensures high resistance to corrosion and mechanical damage. The sensor based on infrared (IR) technology guarantees precise and reliable measurements. The device meets stringent ATEX safety standards, confirming its suitability for explosive atmospheres.

Additional features of the detector:

• Explosion-proof construction: Ensures safe operation in a potentially explosive atmosphere (II 2G).
• Replaceable sensor module: Enables easy calibration and replacement of damaged elements.
• Wide measurement range: Allows for detecting different concentrations of organic compounds.
• High selectivity: Minimizes the risk of false alarms caused by the presence of other gases.
• Compliance with standards: Meets the requirements of the ATEX Directive and standards PN-EN 60079-0:2013-03+A11:2014-03, PN-EN 60079-1:2010 and PN-EN 60079-1:2014-12.
• Calibration: All detectors are calibrated in their own GAZEX Calibration Laboratory operating in accordance with the PN-EN ISO/IEC 17025 standard (PCA accreditation No. AP150).

The detector is powered by an external system, which facilitates integration with existing alarm and control systems. Compact dimensions (105 x 103 x 54 mm) allow for mounting in hard-to-reach places.