Gas Detector - ExDetector SC-220

  • Detects combustible gases and vapours
  • Includes integral switched outputs for alarm 1, alarm 2, and detector fault
  • Suitable for Zone 2 explosion hazard areas
  • Includes optional manual control unit Calibrationbox-i for calibration
  • Complies with safety standards EN 50270, EN 61000-6-3, and EN 60079-15

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The ExDetector SC-220 is a gas detection and warning system designed for use in hazardous areas. It detects combustible gases and vapours, measures gas concentration, and provides warning signals. It features a semiconductor gas sensor, a linear measurement signal (4-20 mA), and integral switched outputs for alarms and error signals. It is suitable for Zone 2 explosion hazard areas and can be programmed for standalone operation or as a transmitter CL for integration with alarm controllers. The system operates by using a semiconductor sensor with an integral heating coil, which ensures a constant operating temperature. Combustible gases reach the sensor surface by diffusion and influence its electrical conductivity, which is then converted into a 4-20 mA measurement signal. The device is available in different sensor variants (Type M, P, S) for detecting specific gases and can be calibrated using an optional manual control unit. It is designed for wall-mounting and offers a range of technical specifications, including a response time of typically less than 30 seconds, a temperature range of -20°C to +55°C, and a humidity range of 20% to 90% relative humidity.

Use Cases

  • Monitoring gas concentration in hazardous areas
  • Triggering protective measures in case of gas presence
  • Suitable for areas with Zone 2 explosion hazard

Capabilities

  • Measurement of gas concentration
  • Alarm stages with pre-alarm and main alarm
  • Integral switched outputs for alarms and error signals
Bieler + Lang GmbH Bieler + Lang GmbH is a manufacturer of gas detection and warning systems, providing solutions for the measurement and monitoring of hazardous, combustible, and toxic gases in industrial and safety-critical environments. The company has over 50 years of experience developing and producing gas detection products that help protect people, equipment, and property from gas leaks and explosions. Their product range includes gas detectors, evaluation devices, and accessories for gas warning systems used across sectors such as hydrogen monitoring, laboratories, storage facilities, parking garages, and biogas plants.

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