Gas detector DEX-A41/N ammonia, 500/1500 ppm, p-p sensor, A4-C design, brass housing

Gas detector DEX-A41/N – reliable protection against ammonia

The DEX-A41/N gas detector is an advanced device designed for continuous monitoring of ammonia concentration in the air. Equipped with a semiconductor sensor, this detector provides fast and precise detection, signaling the exceeding of two alarm thresholds. The device is powered by the system and has a 4-20mA standard output, enabling easy integration with various control and alarm systems. The housing made of brass ensures durability and corrosion resistance, and the explosion-proof design allows for safe use in potentially hazardous environments.

Application and functionality

The DEX-A41/N detector finds application in a wide range of industrial and public utility facilities where there is a risk of ammonia emissions, such as:

• Chemical and pharmaceutical plants
• Warehouses and fertilizer storage
• Food industry (refrigeration plants)
• Sewage treatment plants
• Animal breeding

Thanks to its design and functionality, this detector is ideal for both professional installers and end-users looking for a reliable gas monitoring system.

Construction features and operating parameters

The DEX-A41/N detector has been designed with ease of installation and operation in mind. It has compact dimensions (105 x 103 x 54 mm) and a solid brass housing with a steel sinter, which protects the internal components from mechanical damage and external factors. The semiconductor sensor is characterized by high sensitivity and selectivity to ammonia, ensuring accurate measurements in the range of 500/1500 ppm. The device meets the requirements of the ATEX Directive, which guarantees its safety of use in explosion-prone areas.

Compliance with standards and cooperation with systems

The DEX-A41/N detector is compatible with various GAZEX control modules, such as MDP-1.A/T, MDP-1 PLUS, MDP-4, MDP-8 and MDP-16. The possibility of integration with addressable MDD-1 modules and other central units accepting a 4-20mA signal provides flexibility in building complex gas detection systems. The device meets the requirements of PN-EN 60079-0:2013-03+A11:2014-03 and PN-EN 60079-1:2014-12, which confirms its compliance with European safety standards.