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Air quality guard LGW-13: Intelligent CO2 warning device

Air quality guard LGW-13: Intelligent CO2 warning device

LGW-13: Air quality guard, sensor, CO2 'traffic light' and measuring device with simple air quality assessment and a variety of other functions ZILA's air quality guard LGW-13 with an integrated CO2 sensor technology up to 3,000 ppm (standard version) has been developed to detect and measure the CO2 concentration in any kind of room. Furthermore, the device can be used to control 24 V ventilation elements directly.

The intelligent air quality guard is either operated with a 24 V power supply or surface-mounted on the wall. It features innovative display, protection and switching functions in air quality assessment, which makes this compact and lightweight device unique in its flexibility of application and use. Selectable measuring ranges up to 20,000 ppm are also an advantageous factor.

Details and functions of the air quality guard LGW 13

CO2 sensor and CO2 switch

The measuring principle of the highly sensitive integrated CO2 sensor is based on 'NDIR' (non-dispersive infrared absorption measurement), an optical measuring principle with a very high accuracy.

The air quality guard LGW-13 also comes with a 4...20 mA and 0...10 V signal output, which makes it suitable for use as a precise CO2 sensor. Due to its potential-free switching output, the air quality guard is perfectly suitable as a control and switching device for all common 24 V fans, as well as electric window openers. This fact makes the LGW-13 an automated CO2 ventilation control.

Air quality traffic light, CO2 monitor and carbon dioxide signal device

The compact CO2 measuring device acts as an air quality traffic light to visualise the prevailing quality of the room air (CO2 concentration) at any time via the 10-digit LED display.

Besides the simple visual way of assessing the indoor air quality via the LED display, the device also offers other attractive functions.

Dimensions of the LGW 13

The LGW-13 can be used to prevent an excessive CO2 concentration in any kind of room, as it is a CO2 warning device with an integrated acoustic signal output which, in turn, is triggered when the CO2 concentration reaches the factory-set limit value. If the CO2 concentration drops, the alarm automatically stops. A yellow LED indicates the CO2 relay output when it is activated. Another separate LED in the ventilation slots monitors the general functionality of the CO2 sensor and lights up when it is connected to the power supply (24 V DC). The CO2 sensors error status is indicated if this LED turns off. 

Advantages of the air quality guard at a glance

  • CO2 sensor for air quality asessment and monitoring
  • Precise CO2 measurement by optical measuring method (NDIR)
  • Available in different measuring ranges (standard 0…3,000ppm)
  • Visualisation of the CO2 concentration via a bar graph display (LED display)
  • Factory-set, adjustable, potential-free switch output with an acoustic alarm
  • Integrated function monitoring
  • Compact IP-20 wall housing (polycarbonate, white)
  • Maintenance-free
  • Excellent price-performance ratio

 

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Last modified onTuesday, 30 March 2021 10:40