Typical applications

The E2639-VOC(C2H6O)-LEL detector is intended for monitoring ethanol in environments such as breweries, wineries, distilleries, pharmaceutical production facilities, disinfection operations, laboratories, and storage areas for alcoholic products or cleaning agents, as well as other enclosed spaces where vapours of this volatile and flammable solvent may accumulate.

Ethanol (C2H6O)

Ethanol is a volatile and flammable liquid whose vapours spread easily through the air and can accumulate to dangerous concentrations in enclosed spaces. Although it has a characteristic alcoholic odour, this cannot be fully relied upon for leak detection, as the sense of smell becomes dulled during prolonged exposure and no longer perceives it reliably. Exposure to higher concentrations of ethanol vapour may cause headaches, dizziness, nausea, or respiratory irritation, and prolonged or intense exposure may lead to liver damage and damage to the central nervous system. Due to its flammability, it also presents a significant fire and explosion risk.

Smart communication – ideal for fire alarm systems

The E2639 detector combines the advantages of an autonomous safety device and an intelligent communication node. It is designed for seamless integration with fire alarm systems (EPS) and offers a wide range of outputs for comprehensive control:

• Autonomy: 3× volt-free SPDT relays for direct control of equipment or safe system shutdown.
• Connectivity: Dual RS485 Modbus RTU interface for real-time digital export of measured data to a higher-level system (BMS).
• Control: 2× 4–20 mA analogue outputs intended for precise control of the ventilation frequency inverter.

Easy installation

The E2639 is equipped with three M20 cable glands and a dual terminal block for Modbus RTU. The duplicated Modbus RTU terminals simplify and speed up bus wiring for data readout to the higher-level system. No more inserting two conductors into a single terminal. Thanks to the M20 glands, all required outputs can be connected conveniently.

Key features

• Sensor type: Semiconductor sensor
• Measuring range: 0–100%LEL
• Resolution: 0.1%LEL
• T90 response time: < 120 s
• Recommended recalibration interval: 6–12 months
• Estimated sensor lifetime: > 5 years
• 1-year warranty on the sensor itself (2 years on the complete device excluding the sensor)

Calibration certificate

Each detector package includes the manufacturer’s original calibration certificate in English, confirming the accuracy and correctness of measurement at the time of leaving the factory.