by Ann Withanee — May 2, 2011—WattStopper has launched two powerful daylighting sensors that allow engineers, building owners and installers new options when designing, purchasing and implementing daylight harvesting systems, according to WattStopper, a leading manufacturer of energy efficient lighting controls.
The new LMLS-400 and LMLS-500 may be used for switching or dimming applications and are designed for easy integration with occupancy sensors and other lighting controls. Both digital photosensors include a two-way infrared (IR) transceiver for communication with a wireless configuration tool, and the LMLS-400 features automatic commissioning for either switching or dimming, an industry first, according to the company.
By developing both open and closed loop control solutions for a full range of dimming and switching control strategies, WattStopper says it now offers the most complete and most flexible range of daylighting control options on the market.
The LMLS-400 is a single-zone closed loop photosensor that can be installed on a ceiling or in a lighting fixture. The LMLS-500 is a multi-zone open loop photosensor designed to mount on a ceiling or in the light well of a skylight, and control up to three lighting zones. Either sensor can be configured for on/off switching, bi-level or tri-level step switching or step dimming, or continuous dimming for each controlled zone. The digital photosensors are part of WattStopper’s Digital Lighting Management product line and connect to room controllers and other devices using Cat 5e cables with RJ45 connectors on a free topology room network.
A convenient menu-based handheld wireless tool is used for sensor configuration. The wireless tool also initiates the self-commissioning process for the LMLS-400 and prompts users to input light levels in order to quickly commission the LMLS-500. Once the LMLS-500 receives measured light levels for each control zone, it automatically recommends setpoints, greatly simplifying the setup process compared to other open loop daylighting controls.
WattStopper is a Legrand group brand; a leading manufacturer of energy efficient lighting controls for commercial and residential use.
For more information visit WattStopper Web site.
