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Controllers For Fixed Detection System

GMA 41

Fixed systems gas warning for DIN-rail mounting

The GMA 41, one channel gas warning system, and the 4-channel device GMA 44 together with the efficient and robust transmitters of GfG offer safe and reliable gas warning systems.

  • Easy mounting on DIN-rail
  • State-of-the-art microprocessor technology
  • Flexible, for all measuring tasks
  • For 1 to 4 transmitters
  • Can also be configured at a later stage





GMA 43

Controller for mounting on DIN rail

Each detection point of your fixed gas monitoring system consists of a transmitter and a controller GMA 43. The GMA 43 allows to connect up to three transmitters of the same type. Transmitter and GMA 43 are connected by means of transmitter cable. The GMA 43 provides the power supply for the connected transmitters and receives and processes the sensor signals. Depending on the transmitter type, it monitors the ambient air for the presence of toxic or combustible gases and vapors or for its oxygen content. The GMA 43 offers a variety of features, which allow for adapting the gas monitoring system to your specific requirements:

  • 3 digit display of the linear measurement values.
  • Menu display.
  • 1adjustable alarm threshold per channel
  • Adjustable relay functions: NC/NO contacts, closed circuit or open circuit operation.
  • Alarm hysteresis prevents "relay flattering"





GMA 44

Controller for 500 Gases

The controllers GMA41 (for 1 transmitter), GMA43 (for 3 transmitters) and GMA44 (for 4 transmitters) provide fixed gas control for more than 500 different combustible and toxic gases and oxygen.

3 alarm levels can be set individually. The adjustable alarm delay eliminates false alarms. The 3-digit LED display indicates the gas concentration permanently. Just push a button for detection range, gas and unit. Every controller provides 4 voltage-free relays for 3 alarm levels and fault warning.The relays may be used to control external alarm devices (beacons, buzzers) or to shut solenoid valves or to start a fan as specific counter measures to prevent or limit potential gas hazards.

  • State-of-the-art microprocessor technology
  • Flexible, reliable and suitable for all detection tasks
  • Collective alarm with key switch
  • DIN-rail mountable





GMA 80 Series: GMA 81/83/84/88

Compact Controller for All Transmitters

The GMA 80 series is a universal controller that delivers accurate readings for any single explosive, toxic or oxygen gases or vapors. The design of the GMA 80 makes it an economical choice for applications that require compact, continuous and reliable monitoring

  • Wall mounted enclosure
  • State-of-the-art microprocessor technology
  • Flexible, for all measuring tasks
  • For 1 to 4 transmitters
  • Can be reconfigured at a later time
  • Built-in alarm light and horn





GMA200-MW

Powerful gas warning system for various requirements for measuring gas hazards

The gas warning system GMA200-MW is the most innovative and most flexible control and analysis unit for gas hazards on the market. Its nearly unlimited number of configurations ensures flexible, simple and clearly structured operation in industrial and commercial applications for measuring combustible and toxic gases/vapours and for measuring oxygen concentrations.

  • Freely programmable connection of transmitters for measuring combustible and toxic gases/vapours and oxygen
  • Freely programmable relays
  • Flexible, reliable and cost-saving
  • Clear LCD graphic display with background lighting
  • Wall-mounted casing, IP 65
  • Connections: 0.2-1mA, 4-20mA and RS485





GMA200-MT

Powerful gas warning system for various requirements for measuring gas hazards

The gas warning system GMA200-MT is the most innovative and most flexible control and analysis unit for gas hazards on the market. Its nearly unlimited number of configurations ensures flexible, simple and clearly structured operation in industrial and commercial applications for measuring combustible and toxic gases/vapours and for measuring oxygen concentrations.

  • Freely programmable connection of transmitters for measuring combustible and toxic gases/vapours and oxygen
  • Freely programmable relays
  • Flexible, reliable and cost-saving
  • Clear LCD graphic display with background lighting and traffic light function
  • Connections: 0.2-1mA, 4-20mA and RS485





GMA 200 Series Control Panels

Advanced and flexible controllers for combustible, oxygen, and toxic gas

The gas warning system GMA200-MT is the most innovative and most flexible control and analysis unit for gas hazards on the market. Its nearly unlimited number of configurations ensures flexible, simple and clearly structured operation in industrial and commercial applications for measuring combustible and toxic gases/vapours and for measuring oxygen concentrations.

  • Advanced and flexible controllers for combustible, O2 and toxic gas
  • Complete controller package available in 4-16 channel configurations
  • Up to 16 analog inputs or 16 digital inputs
  • Scalable system with fully programmable menu driven relays
  • Flexible, reliable and economic
  • Clearly structured, easy-to-use push-button interface
  • Backlit graphic LCD changes color to indicate alarm
  • Local display, stack light horn and strobe
  • Easy-to-install wall mounted enclosure
  • Terminal blocks for easy transmitter termination
  • Modbus (RS485) output
  • NEMA 4X housing









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