ALS-2 Ambient Light Sensor


Catalog excerpts

ALS-2 Ambient Light Sensor - 1

ALS-2 Ambient Light Sensor Datasheet Visibly Better Measures Background Luminance in accordance with FAA and ICAO guidelines for use in Runway Visual Range (RVR) applications … direct connection to Biral visibility and present weather sensors and field calibration simplify system design and reduce maintenance costs Designed to FAA and ICAO requirements 0 to 40,000 Cdm-2 measurement range Choice of serial digital or analogue outputs Simple and quick in field calibration Direct connection to Biral visibility and PW sensors Extensive self-test capabilities -60°C to 70°C operating range 2 Years Warranty The ALS-2 Ambient Light Sensor is designed to measure background luminance as part of a of Runway Visual Range system. Mounted alongside the runway the ambient light sensor is often deployed with a visibility meter to provide the data necessary for calculation of RVR. Designed to comply with specifications and guidelines produced by ICAO, WMO and the Federal Aviation Authority in the USA, the ALS-2 meets all the requirements for use in typical RVR systems. The ability to connect the sensor directly to a Biral visibility or present weather sensor and have the background luminance data incorporated into the visibility sensors data string simplifies system design and construction. Available with a choice of serial data or analogue outputs the ALS-2 can be used to replace a wide range of background luminance meters in both legacy and new installations. The simple pole mounting system even incorporates an angular scale to ease installation. A unique feature of the ALS-2 is its ability to be calibrated in the field without the need to disconnect the cable or send commands via the software interface. The ALS-2 Field Optional heated hood prevents snow accumulating around the opti

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Calibrator accessory simply fits over the hood and communicates with the sensor using an IR link through the optical window. The calibration can be checked and adjusted in a matter of minutes without the need for specialist staff or laboratory equipment. Designed to operate in the harshest of weather the ALS-2 has window heating and window contamination adjustment as standard. Extensive self-test capabilities and optional heating complete the package. SWS & VPF Series Sensor Configuration Information For a detailed explanation of the configuration options please refer to the table opposite....

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Configuration Options Explained © Biral - Bristol Industrial & Research Associates Ltd. 2019 For more information, visit or contact us at

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Ambient Light Measurement Operating temperature With extended heating Certification & Compliance CE Certified EMC compliance with EN61326-1997, 1998, 2001 RoHS and WEEE compliant Serial data outputs Power Requirements Sensor Power Self-test capability Additional Features Included with Sensor_ The sensor is delivered in sturdy recyclable foam filled packaging with: - Pole mounting kit (1 x U-bolt and saddle) - User manual and calibration certificates Accessories - Optional Window heater Specifications are subject to review and change without notice. E&OE. © Biral - Bristol Industrial &...

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