Overview: The EC22 D Transmitter is designed for monitoring toxic gases, hydrogen, and oxygen outside hazardous areas. It features a
display and buzzer for on-site measured value display and alarm signaling. The device is compatible with GfG's controllers and a variety of sensors, making it versatile for different applications.
Specifications: The EC22 D uses an electrochemical measuring principle, known for its linear signal, energy efficiency, and high sensitivity. It complies with the European Functional Safety Standard DIN EN 61508-2: 2011, supporting SI levels up to SIL3 in single-channel or redundant use. The transmitter operates within a temperature range of -20 to +50 °C and humidity of 20 to 95% r.h., with an air pressure range of 80 to 120 kPa.
Communication and Service: Signal transmission options include 4-20 mA or 0.2-1 mA analog signals and digital communication via RS-485 (Modbus/RTU). Maintenance is simplified with a calibration adapter for test gas supply, allowing single-person operation.
Device Protection and Display: The transmitter's housing is IP54 rated, protecting against splash water and dust. It includes a 2.2" display with integrated buzzer and status LEDs. The display changes color in alarm conditions, and LEDs indicate operational status.
Reliability and Cost Efficiency: The EC22 D ensures reliable measurement with voltage stabilization, measured value processing, and malfunction detection. Temperature compensation enhances accuracy, while long-life sensors reduce operating costs.
Models and Applications: The EC22 is available in a basic version and a version with display and acoustic alarm. Both models are suitable for a wide range of gases when used with GfG controllers.
Technical Data: The transmitter supports diffusion or gassing gas supply, with sensor-dependent measuring range and response time. It requires a power supply of 12 to 30 V DC and weighs between 170 to 195 g.
Approvals and Certifications: The device is certified for functional safety under DIN EN 61508-2: 2011.
Gas Detection Capabilities: The EC22 D can detect various gases, including ammonia, chlorine, carbon monoxide, ozone, and more, with specific SI levels for each gas.