Dräger Polytron 5700 IR

Advanced Stationary Infrared Gas Detection

The Dräger Polytron 5700 IR is an explosion-proof, industrial-grade stationary transmitter designed for continuous monitoring of flammable gases and vapors in ambient air. Utilizing a state-of-the-art infrared sensor (Dräger PIR 7000), this high-performance device delivers exceptional speed of response and precision. The advanced optical system is highly resistant to sensor poisoning, ensuring reliable explosive hazard detection even in the most demanding industrial environments.

Fail-Safe Infrared Technology and Simple Maintenance

Unlike traditional catalytic bead sensors, the optical infrared technology inside the Polytron 5700 IR is immune to common sensor poisons like silicones, sulfur compounds, and halogenated hydrocarbons. The transmitter features a fail-safe optical arrangement that alerts operators if the beam becomes blocked by dirt or dust. A clear, backlit graphical display presents real-time gas measurements and diagnostic statuses, while a non-intrusive design allows users to calibrate and manage configurations via a magnetic wand without opening the explosion-proof enclosure.

Rugged Architecture and Standalone Flexibility

Engineered for extreme environmental climates, the housing is available in either copper-free aluminum or premium 316 L stainless steel, boasting an IP65/66/67 ingress protection rating to resist heavy rain and dust. For applications requiring localized controls, an optional integrated relay module expands the unit into an independent safety node. This module provides two gas alarm relays and one fault relay to instantly activate external horns, strobes, or ventilation systems without relying on a central panel.

Industrial Applications and Use Cases

• Offshore Platforms & Refineries: Monitoring for hydrocarbon gas leaks under extreme maritime or land conditions.

• Chemical Processing Facilities: Guarding against volatile organic compound (VOC) vapor accumulation.

• Wastewater Treatment Plants: Continuous monitoring of methane levels in humid, corrosive wet wells.

• Aviation Fuel Depots: Early detection of combustible jet fuel vapors in storage areas.