Occupancy sensors automatically turns off the lights, fans, air conditioners, computers television sets etc with a pre set time and turns on the appliances automatically when the person returns back.
Occupancy sensors work on Human Motion Sensing principle. They work in the infrared spectrum. The sensor continuously monitors the human motion when a person is present in the room. As soon as he/she leaves the room, the sensor detects no motion and activates a timer which turns off the appliances connected to it if the person does not return in a pre-defined time.
The appliances will now turn on again only when the person returns. The occupancy sensor is very sensitive and is able to detect a human entry instantly, thus turning on the appliances connected to it.
These sensors find a wide applicaiton & can be used in all the below mentioed places where energy wastage is maximum with the room is unoccupied:
- Bedrooms
- Offices.
- Office cabins.
- Toilets and Bathrooms
- Shops.
- Hotel rooms.
- Passages / corridors.
- Compound lights.
- Conference rooms
- Meeting Rooms
- Guest Rooms
- Window display in shops
- Lifts / Elevators.. etc.
They are ideal for use where small children or old people are present. Small children at many times cannot reach a switch and old people many a times find it difficult to locate the switch in the dark also they at times tend to forget to turn off the lights and fans.
Occupancy sensor can be configured to turn off Air-conditioners also.
Occupancy sensor can be configured to work as a security system also which can alert even a slight moment in a secured area, and cause an alarm to sound.
Occupancy sensors are available in different models like wall mount model and ceiling mount model for use depending on application. They are also available in different wattages.
The Technical specifications for ceiling mount Occ. Sensor are as mentioned below. - Operation Voltage: 220V AC - 240 VAC
- Current drain in dormant state: < 50mA.
- Current drain in Active state < 100 mA.
- Contact Rating = For load upto 800Watts -1200W single or multiple load. (model variation)
- Coverage area – 100 sqft area if installed at height of 8 – 10 feet. (3-5mtr radius)
- Coverage angle120 degrees.
- Time setting 8 seconds to 8 mins Variable. ( can be changed)
- Lux control setting ( Day light saving option)
- Sensitivity Adjustment control
- Response time after moment of detection < 1 second.