LightSaver® LS-101 Daylighting Controller
LightSaver® LS-101 Daylighting Controller (12-24 VDC)
The LS-101 Daylighting Controller is a single zone, ON/OFF device which can be installed in an open or closed loop application to turns lights off automatically when sufficient natural daylight is present. It consists of an advanced digital multiband photosensor that measures light similar to the way the human eye perceives it, an on-board microcontroller, and an LCD display. This photosensor is positioned behind a 100Þ cone that cuts off unwanted light, preventing false triggering.
The LS-101 is a self-contained 24 VDC device with an extended range of 1-1400 fc that only requires a low voltage power pack to operate. By adjusting the setpoints, it will turn lighting systems off when the ambient light levels exceed the OFF setpoint, and will turn lighting systems back on when natural light levels have fallen far enough to warrant it. Because of its factory presets, many set-up applications require little or no adjustment of the settings. The LS-101 is expandable with a low voltage wall switch to enable manual override or with a occupancy sensor to enable its ‘Hold On While Occupied’ feature.
The LS-101 features adjustable settings for ON setpoint, OFF setpoint and time delay, should adjustment be required. Adjusting the ON setpoint will automatically calculate your OFF setpoint to a predetermined deadband setting. The deadband can be adjusted to a value of 25%, 50%, 75% or 100% above the ON setpoint. When the sensed light level drops below the ON setpoint for 20 seconds, the output signal will switch on. And when the sensed light level exceeds the OFF setpoint for the length of the time delay, the output signal will switch OFF. The time delay can be adjusted to 3, 10, 20 or 30 minutes.
The LS-101 Daylighting Controller can be used to control any type of lighting: incandescent, fluorescent, compact fluorescent (CFL) and HID . The sensors work in peripheral offices, skylit areas, cafeterias, warehouses and any other i