Gas Detectors - EC28 Series

GfG Gesellschaft für Gerätebau mbH

Electrochemical measuring principle for toxic gases and oxygen
Diffusion-based measuring gas supply
Alerting features with optical and acoustic alerts
Stability and protection against very hard impacts
IP64 protection class

The EC28 Series is an electrochemical gas detection system designed for the measurement of toxic gases and oxygen. It utilizes a diffusion measuring gas supply and is available in multiple models, such as EC28, EC28 D, EC28 DA, EC28 DAR, EC28 B, EC28 DB, and EC28 DAB, each offering distinct functionalities.
The system includes alerting capabilities in certain models (EC28 DA, EC28 DAR, EC28 DAB) with optical and acoustic alerts (90dB @ 10cm). It provides a relay output with specific models (EC28 DAR) featuring a 1 changeover, potential-free relay capable of handling up to 30V AC/DC and a maximum short-circuit current of 1A.
The EC28 Series operates on a power supply of 18...30V DC and supports output signals of 4...20mA or two-wire Modbus (available in EC28 B, EC28 DB, EC28 DAB). It is built to withstand a wide range of climatic conditions, including operational temperatures from -20°C to +50°C, humidity levels of 5...90% r.h., and air pressure ranges of 80...120kPa.
The housing is made of stainless steel and anti-static plastic, with an IP64 protection class, and dimensions of 115 x 203 x 55 mm (W x H x D) and a weight of approximately 800 g (with display).
The EC28 Series is approved for use in hazardous environments with markings and ignition protection types of II 2G Ex emb [ib] IIC T4 Gb and EU Type Examination Certificate BVS 04 ATEX E 132 X.
It also meets electromagnetic compatibility standards (DIN EN 50270) for both interference emission and immunity.

Use Cases

Detecting toxic gases and oxygen in industrial or hazardous environments.
Continuous monitoring for safety compliance.

Capabilities

Operation under ambient temperatures from –20 °C to +50 °C, humidity 5–90 % r.h., and air pressure 80–120 kPa
Electrical output via 4–20 mA analog signal or two-wire Modbus (model-dependent)
Versions with integrated audible/visual alarms and relay output depending on model variant

GfG Gesellschaft für Gerätebau mbH GfG is a key player in the green hydrogen economy, focusing on producing carbon-free hydrogen via renewable energy. It aims to convert its Whyalla plant to hydrogen-powered steel production. GfGs efforts align with global efforts to reduce fossil fuel dependence.

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