S-PRE/Day-Night/T Modbus Occupancy sensor with light and temperature sensors for Modbus communication

S-PRE/Day-Night/T Modbus Occupancy sensor with light and temperature sensors for Modbus communication Accurate device to detect presence and motion 3-in-1 device (Occupancy, light and Temperature Day*-Night** detection Occupancy sensing for better comfort & energy efficiency One of the biggest challenges, that we are encountering today is the balance between comfort, security and the efficiency of energy. When it comes to occupants’ comfort in an indoor area, both residential as well as non-residential markets, the building constructors are providing a best in class experience for the occupants...

LIGHT The built-in light sensor detects the level of light intensity in the area,which helps to identify the light and darkness in order to optimise the occupancy sensing. PRESENCE / MOTION The pyroelectric detector with a 31 pairs of facets Fresnel lens, concentrates the infrared radiation emitted by human body and divides the detection field into 62 zones. It has a 4 meters of detection distance, 6 meters of diameter of detection on the floor and a 100° angle of detection. The built-in temperature sensor can be used for monitoring the temperature level in a zone. COVERAGE PATTERN Side view...

HOW THE OCCUPANCY SENSOR AND BUILT-IN SENSORS WORKS TOGETHER TO ENHANCE THE COMFORT LEVEL OF THE OCCUPANTS? Manage energy more efficiently and provide a better comfort for the occupants Example of application : Ventilation System The illustration below shows how the occupancy and light sensor can be used with an automation system in order to optimise the ventilation system in a room: Occupancy: Providing a good ventilation in the room The occupancy sensor detects a movement into the detection field,therefore the automation system will turn “ON” (occupied mode) the ventilation system to enhance...

Day & night detection algorithm: When there is occupancy there is certainly a need for ventilation and a good air quality is vital for the wellbeing of the occupants. But the need for renewal of the air flow rate vary according to the situation (day* & night**). Why we need to adapt the ventilation for day and night? During the daytime, there will be lots of movements because people are more active, therefore we need to modulate the air flow rate according to the occupancy level and provide an excellent air quality inside the room. On the contrary, during the night-time there will be less movements,...

S-PRE/Day-Night/T sensor inside view Pyroelectric infrared-detector Yellow LED for Modbus traffic indicator Light sensor Temperature sensor S-PRE/Day-Night/T back side view Rotary switch for setting the Modbus address Easy connectivity and data transfer The S-PRE/Day-Night/T sensor is equipped with a Modbus interface, which provides easy setup and integration into large process control and automation systems. Indeed, the sensors measurements can be read in real-time over RS485 local network via the Modbus RTU protocol with Master-slave approach. The S-PRE/Day-Night/T acts as a slave, and it allows...

S-PRE/Day-Night/T Modbus Occupancy sensor with light and temperature sensors for Modbus communication S-PRE/Day-Night/T Modbus sensor Standard code Data points Presence, light and temperature Occupancy sensor specifications Sensor Type Fresnel lens Number of facets Detection angle Detection distance Diameter of detection on the floor (for 2,7M ceiling height) Built-in light sensor Output Day*-Night** detection Response Time @1fc (ms,typ.) Built-in temperature sensor1 Temperature working range Conversion Gain Yellow LED for Modbus traffic indicator Red LED for presence indicator Electrical specifications...

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FLY694GB_capteur_presence_modbus_v1 – Copyright Aereco – Images: Aereco, Fotolia – All data and pictures in this document are non contractual and are subject to change without prior notice.