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Light Grid can be used for elevator doorway monitoring.
September 24, 2007 -
Resistant to sunlight and other ambient light sources, AL21 Series Light Grid provides automatic adaptation of beam configuration and maintains triple beam crossing during closed-door conditions. It offers sensing range of up to 3.5 m and quick disconnect electrical connectivity with 1 NPN and 1 PNP output. Featuring 9 mm wide housing with field height of 1,800 mm, system consists of paired array of infrared transmitter and receiver elements in 2 separate housings.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.) |
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New Ultra-Low Profile Light Grids from Pepperl+Fuchs Ideal for Elevator Doorway Monitoring
TWINSBURG, OH - Pepperl+Fuchs introduces AL21 Series Ultra Low-Profile Light Grids.
The AL21 provides automatic adaptation of the beam configuration for maximum resolution and superior coverage at close range. They are highly resistant to sunlight and other ambient light sources for maximum reliability and accuracy. Triple beam crossing is maintained during closed-door conditions, offering optimal coverage as the door is about to close.
The AL21 features a compact 9mm wide housing with field height of 1800mm, while providing a sensing range of up to 3.5m. The system also features quick disconnect electrical connectivity, with 1 NPN and 1 PNP output. No external amplifier and no interconnecting wires between the transmitter and receiver are required, which facilitates fast and simple setup. Alignment of the transmitter and receiver housings is easy due to the large operating angle of the light beams.
The AL21 light grid allows accurate and affordable non-contact detection of people and objects moving over a threshold. The system consists of a paired array of infrared transmitter elements in one housing, and an array of receiver elements in a separate housing. Optical synchronization allows the receiver to recognize only light from its corresponding transmitter(s), but not from other transmitters on the grid. When a target breaks one or more beams, the receiver no longer sees light from its corresponding transmitter(s) and triggers the output to change state.
Pepperl+Fuchs is a world leader in the design, manufacture and application of high quality factory and process automation products and services. Pepperl+Fuchs pioneered the development of proximity sensors 45 years ago, and has set the standard for innovation and quality ever since.
Pepperl+Fuchs,
1600 Enterprise Parkway,
Twinsburg,
OH 44087;
(330) 486-0001;
fax: (330) 405-4710;
fa-info@us.pepperl-fuchs.com;
www.am.pepperl-fuchs.com
Company Information:
Name: Pepperl+Fuchs
Address: 1600 Enterprise Parkway
City: Twinsburg
State: OH
ZIP: 44087
Country: USA
Phone: 330-486-0002
http://www.am.pepperl-fuchs.com
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