Gas detection controllers form the central interface of a fixed gas detection system, receiving signals from field detectors and managing the required alarm and control response.
Air-Met Scientific supplies controllers ranging from simple multi-channel systems through to scalable analogue and digital platforms for larger industrial installations.
Gas Detection Control & System Integration
A gas detection controller allows multiple elements of a fixed gas detection system to work together.
Depending on the application, the controller can be configured to provide:
- Real-time gas concentration display
- Multiple alarm levels
- Audible and visual alarm activation
- Ventilation and fan control
- Equipment interlocks and shutdown functions
- Fault monitoring
- Relay outputs
- 4–20 mA analogue signals
- Modbus or other digital communications
- Data logging and event recording
- Integration with BMS, PLC or SCADA systems
The appropriate controller depends on the number and type of detectors being installed, required alarm actions, communication requirements and the complexity of the overall control philosophy.
Selecting the Right Gas Detection Controller
The controller should be selected as part of the overall gas detection system rather than independently of the detectors.
Air-Met Scientific can assist with determining requirements including:
- Number and type of gas detectors
- Analogue or digital detector communications
- Alarm levels and required site responses
- Audible and visual alarm requirements
- Ventilation, damper or equipment control
- Relay and interlock requirements
- BMS, PLC or SCADA integration
- Data logging and reporting
- Future system expansion
- Backup power and fault monitoring requirements
From a simple single-point alarm system through to a multi-area gas detection network, Air-Met Scientific can configure the detector, controller and alarm architecture to operate as one complete system.
Engineering, Configuration & Commissioning Support
A successful fixed gas detection system requires more than selecting the correct detector and controller. The system also needs to be configured, documented and integrated correctly with the surrounding electrical and control infrastructure.
Air-Met Scientific’s engineering team can support fixed gas detection projects with:
- System architecture and equipment selection
- Wiring and interconnection diagrams
- Detector and controller configuration
- Alarm and relay logic
- Input/output schedules
- Modbus and communications configuration
- BMS, PLC and SCADA integration requirements
- Audible and visual alarm configuration
- Ventilation, damper and equipment interface requirements
- Technical documentation to support installation and commissioning
This engineering support helps electrical contractors, system integrators and site teams understand how the equipment is intended to be installed and how each part of the gas detection system should operate.
Air-Met Scientific can also provide commissioning and functional testing once equipment is installed. This includes confirming detector response, alarm thresholds, controller configuration, relay operation, audible and visual alarms and interfaces with external equipment.
Testing the complete cause-and-effect chain helps verify that when a detector identifies an unsafe atmosphere, the controller and connected safety systems respond as intended.
Ongoing Fixed System Service & Maintenance
Once commissioned, fixed gas detection systems require ongoing inspection, functional testing and calibration to maintain confidence in their operation.
Air-Met Scientific provides preventative maintenance and calibration support for fixed gas detection systems across Australia, including detector calibration, controller testing, alarm verification and system functionality checks.
An Air-Met Scientific service agreement provides a simple way to manage scheduled maintenance, maintain service records and ensure the complete gas detection system remains reliable throughout its operating life.
To discuss a gas detection controller, system design or complete fixed gas detection solution, speak with the Air-Met Scientific team.
