What is zone control?
Zone control means dividing the lighting into several zones so as to exploit the extra daylight that comes in through the windows.
Zone control is mainly used to control indoor lighting.
The system you should choose depends on the supply of daylight to the rooms and your lighting requirements. It is therefore important to consider whether particular workplaces or kinds of pro-duction make special demands on the lighting. You should also determine how the
existing installations are split up into zones so any changes can be allowed for.
With Servodan Luxstat Wirelss Control and the unique Open-Loop photometry operating principle you can divide the room into up to three zones, where the lighting is adapted to the daylight.
Instead of measuring the light inside the room, the sensor measures the actual daylight coming into the room. During installation the light is measured at reference points at user height for each of the three zones. The result is keyed into Servodan Luxstat Control, which automatically calculates a daylight factor for each zone.
The Open-Loop photometry operating principle prevents the light control from responding inappropriately to changes in the room. For example, the lighting is never dimmed, even if people at a meeting bring along a large whiteboard. The system can thus display great sensitivity to changes in the daylight.
The result is a higher level of comfort, greater energy savings and a uniformly illuminated room with no dark corners or superfluous artificial light.
Zone control with Luxstat Wireless Control
The light sensor is installed as close as possible to the incoming daylight. This provides a large, dynamic measurement surface with accurate measurement of actual daylight – with no disruptive elements. In Zone 1 the daylight factor is high. Daylight often supplies sufficient light, so there is rarely a need here to switch on lamp fittings during the daytime. Servodan Luxstat Wireless Control takes care of cutting off the ballast, in order to maximise energy savings.
In Zone 2 the daylight factor is lower, as the zone is further away from the incoming daylight. The sensor’s light measurement is corrected by the daylight factor, and Luxstat Wireless Control correctly adjusts the dimming level in accordance with the desired light level.
In Zone 3 the daylight factor is even lower, and the lighting becomes correspondingly brighter.
Choice of system