Alera Lighting AL1072 - Installed Daylight Sensors Guide - Manual (Page 5)

9 8
Shown installed in Curv Radial Lens at left.
For specific in-product placement in other Alera Lighting products, see individual product specification
and/or technical data sheets. For special placement requests, contact Alera Lighting.
To adjust light level setting, twist sensor as indicated by arrow and seen below.
INSTALLED SENSOR OPTION
DSPL—DAYLIGHT SENSOR, PHILIPS LUXSENSE
Requires Mark 7 Dimming Ballast, 0-10v • Up to 32% Potential Energy Savings
LuxSense Commissioning
• Measure the light level under each LuxSense sensor with no or negligible daylight contribution
— Light meter required
• If needed, turn the sensor until the required light level is reached (with no or negligible daylight contribution)
• Duplicate this in other rooms when similar daylight and reflectance conditions exist
• Note that Philips LuxSense is not designed for maintaining a constant light level
• Warning: The reduced light level should be no more than 30% lower than the average installed light level, without
daylight contributions (example: 55fc installed, adjustment down to 39fc is possible)
Optical Characteristics
• It is assumed that the reflection in a room is such that a light level of 45fc on a table (2.6' high) will result in 2.3fc
seen by the controller at 8' under a viewing angle of 45°; the opening angle can be adapted by the sensor ring
control, realizing an adjustment factor between
1⁄3 and 3.
Controls Characteristics
• LuxSense compensates approximately for 50% of the added light (simulated and measured with a fluorescent
light source). See graph at left below. In case of a natural light source, the compensation is higher than 50%.
SENSOR MANUFACTURER DATA
All technical data is per published data from Philips unless noted. Subject to change without notice.
For additional technical data and/or the most current information available, visit Philips.com.
Sensor
TECHNICAL DATA
WHY INSTALL A DAYLIGHT SENSOR?
ENERGY REDUCTION
Incorporating Daylight Harvesting can save significant energy in both private offices and large, open areas where natural sunlight is
present during operating hours. Energy savings from facility operations go directly to operating profit, making this an attractive element
of any energy reduction strategy.
SUSTAINABLE BEST PRACTICE
A true win-win solution. Many leading organizations place importance on sustainable best practices that can be easily demonstrated
to customers, employees, and shareholders. Daylight harvesting is a simple way to implement best practice lighting that can be used to
enhance company image while saving incremental energy for a true win-win solution.
CLOSED LOOP OPERATION