The MWS7 from CP Electronics is a microwave presence detector that provides automatic control of lighting loads suited for warehouse applications. When a person or fork lift truck enters an aisle or corridor, the detector will turn the lights on, or raise the level of light output. After a predetermined period, the lights will turn off or dim down. The detector uses microwave technology that allows the range of detection to be set accurately, irrespective of whether the object is a person or a fork lift truck. A common problem with other types of detectors is that larger objects are picked up at longer distances, making accurate setup impossible. The product is said to have good immunity to vibration. Three output channels are provided: a switching channel with a high power relay; a switching channel with a low voltage, low power isolated contact; and a dimming channel capable of controlling up to 20 DSI or Dali ballasts. The detector has a built-in photocell that measures the overall light level in the detection area.
Contact Chris Huxham, Shorrock Automation, Tel 012 345-4449,