Gas detector DEX-31/N organic vapors, 20/40% LEL, F4-B design, p-p sensor, brass housing

Gas detector DEX-31/N – reliable safety in hazardous areas

The DEX-31/N gas detector is an advanced device designed for continuous monitoring of organic compound concentrations in the air. Equipped with a semiconductor sensor, the detector signals exceeding defined alarm thresholds, ensuring a quick response in case of danger. Explosion-proof design (F4-B execution) and a brass housing guarantee durability and reliability even in harsh industrial conditions. The device is ideal for both professional applications and end-users who care about safety in their surroundings.

Features and application

The DEX-31/N detector finds wide application in places where there is a risk of organic gas leakage, such as:

• Chemical industry: monitoring the concentration of solvents and other organic substances.
• Refineries and petrochemical plants: control of hydrocarbon leaks.
• Automotive workshops and paint shops: protection against harmful fumes.
• Warehouses and storage facilities: detecting dangerous gas concentrations.
• Confined spaces with limited ventilation: ensuring safe working conditions.

Thanks to its design, the detector can be used in explosion hazard zones (zones 1 and 2), making it an indispensable element of safety systems in many industries.

Advantages of the DEX-31/N detector

• High sensitivity and measurement accuracy: the semiconductor sensor provides precise detection of organic compounds in the range of 20-40% OEL.
• Durable construction: the brass housing protects the device from mechanical damage and external factors.
• Explosion-proof design: F4-B execution allows safe use of the detector in explosion hazard zones.
• Simple installation and operation: the detector is easy to install and configure, and its operation does not require specialized knowledge.
• ATEX compliance: the device meets the stringent requirements of Directive 2014/34/EU, guaranteeing its safety and reliability.
• Fast response to danger: a two-threshold alarm system (A1, A2) informs about exceeding the permissible gas concentration limits.
• Possibility of integration with alarm systems: the detector can cooperate with various control modules, allowing the creation of a comprehensive gas monitoring system.

Construction and technical parameters

The DEX-31/N detector has been designed with long-term and trouble-free operation in mind. Its compact dimensions (105 x 103 x 54 mm) facilitate installation in various locations. The device is powered by an external system, ensuring continuous operation. An important feature is also the possibility of cooperation with control modules such as MD-1, MD-2, MD-4, MDP-1 PLUS and others accepting a 4-20mA signal after using a power limiter MDPL1 – which provides great flexibility in building gas detection systems. The detector has two bistable (threshold) outputs, which can be used to activate audible or visual alarms and to cut off the gas supply in the event of a dangerous concentration being detected.