The LMLS-600 is a dual loop photosensor that automatically switches or dims one zone of lighting based on ambient light and daylight levels. It has two silicon photodiodes with an extended range of 1–10;000 footcandles (fc) and features photopic correction to mimic the human eye’s perception of daylight. The LMLS-600 is part of a Digital Lighting Management (DLM) system and sends light level signals to control loads connected to DLM on/off or dimming room controllers.

• Single zone photosensor for top-lit switching and dimming applications
• Combines strengths of open loop and closed loop daylighting control in one product
• Selectable 30° or 70° closed loop spatial response; 60° open loop spatial response for optimal detection of light levels
• Automatic calibration and configuration
• Shown to save 52% more energy than open loop daylighting control system
• Photodiodes corrected to match the photopic response of the human eye
• Input voltage: 24 VDC from DLM local network
• Current consumption: 7 mA
• DLM local network connection: 1 RJ45 port
• Digital multi-band photosensor range: 1–10;000 fc (10–107;000 lux)
• Spatial response: Closed loop; selectable 70º or 30º