Environmental sensors are bus powered

Carlo Gavazzi, sensor, CO2, carbon dioxide, temperature, RH, humidity

Carlo Gavazzi’s bus-powered sensors for the Dupline system can monitor CO2 temperature and relative humidity. They provide significant wiring advantages in HVAC applications, producing considerable savings on installation cost and commissioning time.

These sensors are offered in different combinations of CO2, temperature and humidity to suit the application requirements. They are available with or without a display. The CO2 version has the choice of an LCD display or traffic-light indication.

The traffic-light version has a tri-colour LED that can show green, amber or red; the transition thresholds are programmable from the Dupline controller.

The CO2 sensor has a range of 0 to 2000 ppm and uses dual-source infra-red NDIR technology. Temperature sensors have a range of -20 to +50°C, and the humidity sensor covers 0 to 100% RH.

The Dupline 2-wire bus system provides communication and power and simplifies field-level wiring. The requirement for sub-panels, out-stations and local power supplies is removed.

For more information on this story, click here: Jan 2014, 163
Related links:
Related articles:



modbs tv logo

ECA urges careful planning amid ongoing materials shortage

The ECA is urging its Members, as well as the wider industry, to continue to exercise caution and plan as far ahead as possible on projects involving cable management systems (CMS).

George Clarke to open BESA Conference

The Building Engineering Services Association (BESA) has confirmed that this year’s National Conference will take place on November 3 and 4 and will once again be a ’virtual’ event.