BACnet and Modbus CO2/Humidity/Temperature Sensors got Smarter!
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BACnet and Modbus CO2/Humidity/Temperature Sensors got Smarter!

Author Jukka H...
Moderator
#1 | Posted: 24 Apr 2015 18:08 | Edited by: Jukka Hurtta  
SyxthSense BACnet and Modbus range of room measurement solutions got even smarter. The CDR, RHR and TER sensors have now options to have two push buttons for natural ventilation and other applications to allow the window to be opened manually by the user. Furthermore now it is also possible to have active setpoint that is adjusted via two push buttons (you can still alternatively have active setpoint adjusted via a setpoint knob). Using the push buttons the current setpoint can be visualized in the backlit LCD screen.

We have also added an energy saving feature. If the room sensor is fitted with the PIR/LUX option to measure the occupancy, it is now possible automatically to have setback (or boost) when no-one is present in the space. This is an ideal automatic energy saving feature. As the sensors can also operate as temperature, CO2, humidity or light level controllers, combining the active setpoint with the PIR occupancy makes sense. An example of this would be where the temperature setpoint is reduced when no-one is present saving energy.

An other option is when the CDR sensor has been configured to control the air quality e.g. by wiring the unit to the fully modulating fan. When no-one is present in the space, the system will automatically increase the CO2 setpoint, therefore reducing the fan speed (or swithing it off) immediately, not just waiting the CO2 level naturally reduce. In essence the CDR CO2 sensor can act as fully demand based solution and various application profiles can be created.

We can also now provide boost function to the control loop via a push button. This can e.g. boost fan speed when the user feels the need for this.
2 Button Example
2 Button Example
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