Ribble Enviro Ltd

- Model Gas Net - Addressable Controller System for Gas Detectors

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The Gas Net addressable controller system will monitor from 1 ~ 32 gas detectors on a common 4-core cable, the full range of gas detectors are available including infra red detectors, monitoring in any type of environment from commercial premises through to heavy industrial and hazardous area applications. Typical monitoring applications to date include public buildings, multi-storey car parks, tunnels, breweries, boiler plant rooms, large area perimeter monitoring, water treatment works, H&V control, manufacturing, process plants, horticulture, hotels, offices etc.

  • Up to 32 addressable sensors
  • Automatic safety check diagnostics/system surveillance
  • Conventional 3 core or single 4 core sensor network
  • Front panel push button function adjustment
  • Continuous display of operating conditions
  • Sensor reading - peak hold
  • Versatile sensor configuration
  • One man calibration utilising data storage
  • Sensors easily removed or added
  • Low cost installation
  • Programming - secondary access code protection
  • Three alarm trip points
  • 16 user selectable alarm relays

Gas Net has been designed to operate in the full range of environments from commercial premises through to heavy industrial applications which may require hazardous area sensing. Typical monitor locations are - public buildings, car parks, tunnels, breweries, boiler plant rooms, water treatment works, H&V control, manufacturing, process plants, horticulture, hotels, offices.

Each gas sensor continuously monitors the atmosphere, reporting any hazardous conditions to the control unit, for display by the alpha numeric screen indicating the reporting sensor, gas type, concentration and alarm status. Alarm levels that are exceeded will automatically activate a variety of signal outputs including analogue/digital data and user selectable relays. The Gas Net system operates on a single 4-core cable network and has the capacity to monitor up to 32 addressable sensors of various gas types. Larger systems offering unlimited sensors can be achieved using multiple Gas Nets housed in a 19” rack based system. The Gas Net is supplied ready to use with pre-calibrated gas sensors and provides for additional sensors that can be easily added to any point of the network. When local indication/alarm functions are required, any number of Snoop remote alarm panels may be connected, offering repeat functions of the main panel.

  • Sensor points : 1 - 32
  • Measurements
    • Combustible Gas - L.E.L., % vol
    • Toxic Gas - ppm, % vol
    • Oxygen - % vol - Depletion/Enrichment
    • Refrigerant - Alarm
    • Any 4 - 20mA transmitter
  • Power Consumption
    • 230/115v AC or 24v DC
    • Control unit - 7.5w quiescent 17w full alarm condition
    • Sensor - 2.5w
  • Indicators - control unit
    • Dot matrix liquid crystal display 4 lines indicating:- sensor address, gas type, concentration (rising or falling), peak hold, alarm status, system fault, sensor fault, line fault, relay inhibit
    • Power - Twin Green L.E.D’s
    • Alarm - Twin Red L.E.D’s
    • Fault - Twin Amber L.E.D’s

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