Two-level propane-butane detector, 10/30% LEL, F4-C design, IR sensor, brass housing DEX-1R5/N

Gas detectors – safety and reliability

The DEX/F series detectors are devices designed for continuous monitoring of dangerous gas or vapor concentrations in enclosed spaces. They signal exceeding two alarm thresholds (A1, A2), ensuring a quick response in case of a hazard. Their explosion-proof design and ability to cooperate with various control modules make these detectors applicable in a wide range of industrial and commercial installations.

Application and functionality

DEX/F detectors are ideal for use in places where there is a risk of explosion, poisoning, or fire caused by the presence of gases. They can cooperate with control modules MD-1.A/T, MD-1, MD-2, MD-4, MDP-1.A/T, MDP-1 PLUS, MDP-4, MDP-8, MDP-16 and addressable modules MDD-1, MDD-1/T and MDD-1x/T. These devices meet stringent ATEX safety standards and are designed to operate in potentially explosive zones with varying degrees of risk (IIA, IIB, IIC).

Design and product features

The DEX-1R5/N detector is a model equipped with an optical sensor (Infra-Red) designed to detect propane and butane in the range of 10/30% LEL. The brass housing provides durability and corrosion resistance. A replaceable sensor module enables easy calibration and maintenance of the device. The detector is powered by an external system and is characterized by compact dimensions (105 x 103 x 54 mm). Thanks to its explosion-proof design, it can be mounted in zones threatened by flammable gas explosions.

Advantages of DEX/F detectors:

• ATEX compliance: Guarantees safety and compliance with regulations.
• Replaceable sensor: Enables quick replacement and calibration without the need to replace the entire device – reduces operating costs.
• Modularity: Allows adaptation of the detector to specific needs by selecting the appropriate sensor module.
• Dual-threshold signaling: Precise determination of the degree of hazard thanks to two alarm thresholds (A1, A2).
• Durable construction: Brass housing provides resistance to mechanical damage and corrosion.
• Calibration: All detectors are calibrated in their own GAZEX Calibration Laboratory accredited in accordance with PN-EN ISO/IEC 17025.
• Wide range of applications: Possibility of use in various industrial and commercial installations – from garages to industrial plants.

Technical parameters (for model DEX-1R5/N):

• Detected gas: Propane-butane (LPG)
• Measurement range: 10/30% LEL
• Sensor type: Optical (Infra-Red)
• Housing material: Brass
• Power supply: Powered by system
• Dimensions: 105 x 103 x 54 mm

The DEX-1R5/N detector is a reliable solution for ensuring safety in places where propane or butane leaks may occur. Its precise measurement and solid construction guarantee long-term and effective protection against hazards associated with these gases.