DreamWatts Monitoring

Adding Sensors With LynxSense

DreamWatts can be made to support a variety of sensors. Using the LynxSense module any DreamWatts installation can be extended with indoor and outdoor temperature sensors, CO2 sensors, and virtually any additional sensor which provides a 0-5v signal.

DreamWatts LynxSense modules are monitored continually. Stored in our database is up to 2-years' data showing internal and external temperatures, CO2 measurements, and any other type of data desired that can be measured with a 5v sensor. All monitored data can be viewed online. In addition, selected reports of the monitored data are available for the building owner at any time.

As shipped from PowerMand, all DreamWatts LynxSense modules are outfitted with a ZigBee radio for wireless communications with a DreamWay Gateway. Installation is a breeze, just wire up the sensors and connect the power supply to the LynxSense module. The DreamWatts thermostat will automatically find the ZigBee network, present its security credentials, and request commissioning. Once the user, with the click of a button, acknowledges the LynxSense module as a device intended for use on the indicated network, the module begins sending monitoring data up to the data center.

Using a simple user interface, all from the Internet, the user can name the individual sensors, and define the units and range with easy entries. It's that simple!

Supported Sensors

Temperature Sensors from Temco Controls

Temco Controls offers a range of temperature sensor type and accuracy. From outdoor sensors, to indoor flush mount and packaged sensors, there is a broad range available for low cost.

 CO2 Sensor from SenseAir

During normal operation, the sensor module measures ambient gas CO2 concentrations at two second intervals. Measured CO2 concentration is filtered and is transmitted to the 0v to 5v analog voltage output, which in turn is read by the LynxSense module. At the same time it is compared with a predetermined CO2 high level alarm setpoint. An alarm filter is configured to make the unit immune to temporal disturbances and yet matching requested response time. An internal diagnostic routine sets a fault alarm in the event that any malfunction is detected. The analog output continues to keep the lastvalid value in the case of measurement fault detected.