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  • GLV18 Photoelectric Sensors
Nov 2010
Pepperl+Fuchs Inc.Request Info
TWINSBURG, Ohio, Nov. 24, 2010 — The GLV18 series photoelectric sensors with clear object detection available from Pepperl+Fuchs use reflectors to detect transparent objects up to 2.5 m away, or opaque objects up to 5 m away. They can detect transparent objects to a contrast as low as 18%, including objects as transparent as glass or a clear film. They carry the CE mark and are UL/cUL-listed.

The benefit of clear object detection is the ability to consistently detect transparent materials such glass bottles, polyethylene terephthalate plastic, a web of shrink-wrap, or protective bubble wrap. Other types of photoelectric sensors would not consistently detect clear objects because the transmitted light would optically burn through the material, according to the company.

These sensors come in an industry-standard M18 threaded cylindrical housing that is up to 50% shorter and with up to 50% lower power consumption than many competitive models. As a result, they are more likely to fit into space-critical equipment or installations and are less costly to operate. Because lower power consumption enables each power supply to power more sensors, fewer power supplies may be needed in a given application.

The sensors include a flush-mount bracket that allows for a simple, tool-less, unobtrusive means of mounting them on a conveyor. Ball-and-swivel and half-clamp mounting brackets are also available to facilitate precise positioning of the sensors.

Status LEDs are highly visible and placed in dual positions, 180° apart on the housing, for increased visibility. Status LED functionality is standardized, meaning that the sensors indicate not only that they are powered and see a target, but also if the sensor’s signal strength is lower than it should be so that corrective action can be taken.

They are suited for use in materials handling applications, primarily for detecting clear shrink-wrap webs or semitransparent trays or cartons. They are also well suited for use in packaging applications including, among others, presence detection of clear clamshells, bottles or pouch web stock. They are reliable general purpose sensors that can be used in a number of other markets, including mylar detection in printing/paper applications and glass detection in automotive applications.


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A term describing a substance that is impervious to light; the characteristic of a substance that has no luminous transmittance.
Capable of transmitting light with little absorption and no appreciable scattering or diffusion.
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