Gas Detectors - EC22 / EC22 D (with display)

GfG Gesellschaft für Gerätebau mbH

Diffusion measuring gas supply
2.2 graphic display with 3 function buttons
Three function buttons (display version).
Status LEDs for operation and fault/service.
Analog and digital signal outputs.

The EC22 / EC22 D is an electrochemical gas sensor designed for measuring gas concentrations with a diffusion-based measuring gas supply. It features a 2.2 graphic display, 3 function buttons, and supports both analogue and digital outputs (4-20mA, 0.2-1mA, and RS-485). The device operates within a wide temperature range (-20°C to +50°C) and has an IP54 protection class. It is suitable for various industrial and environmental monitoring applications. The sensor is designed for reliable and accurate gas measurement, with a readiness delay of 5 seconds plus a 20-90-second sensor run-in phase. It operates on a 24V DC power supply with a power consumption range of 10-48mA depending on the features (display, horn, etc.).

Use Cases

Typically used in hydrogen and related industrial applications

Capabilities

Continuous gas concentration measurement using electrochemical sensors with diffusion sampling.
Supports analog current outputs (4–20 mA or 0.2–1 mA) for control system integration.
Digital communication via RS-485 (Modbus protocol) with configurable baud rates up to 38,400.
Operable within –20 to +50 °C, 20–90 % r.H., and 80–120 kPa, depending on sensor type.

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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