Daylight Harvesting
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Where and when daylight is prevalent, the Adura system reduces ambient electric lighting to the appropriate level while often increasing visual comfort at the same time. Adura Light Controllers make intelligent decisions based on the daylight information transmitted from a photocell within the space. The system is also able to provide multi-zone daylight harvesting control from the input provided by a single photocell. For example, a row of lights nearest to the window will have lower output than the next row of lights, and so on, until the amount of daylight contribution is minimal. The system can also utilize an internal astronomical time clock, reducing light to a lower level relative to sunrise and sunset. The time clock controller automatically adjusts each day as sun rise and set times change.
Adura’s system can be configured to provide either stepped reduction or continuous dimming to reduce electric light output. Stepped reduction can be achieved by depowering an entire fixture, switching off one or more ballasts in a multi-ballast fixture, or signaling a multi-step ballast to reduce its output. Continuous dimming requires 0-10 VDC dimming ballasts.
The Adura system makes it possible to:
- Create daylighting control zones that respond to a photocell or astronomical time clock with each zone consisting of one or more light fixtures
- Control multiple daylighting zones from a single photocell
- Remotely add or delete fixtures from a daylighting control zone, without altering circuit or control wiring
- Remotely adjust illuminance set points, time delays and other strategy parameters
Occupancy Detection