Optical Forked Photoelectric Sensors
July 29, 2009 by admin
Filed under Photoelectric
The new GS 61 and GS 63 optical forked photoelectric sensors complement the successful GSU 14B and IGSU 14B ultrasonic forked sensors to create an outstanding performance portfolio. They are specially designed for the detection of non-transparent labels and, with their three millimeter wide fork widths, can be used for a wide range of applications, including the processing of booklets or folded labels. The extremely flat lower fork in slim-line design enables simple installation directly at the dispensing edge and in installation situations with very limited space. The GS 61, the world’s smallest forked photoelectric sensor for label technology in industrial quality, offers maximum installation freedom. With very visible markings, both devices enable fast alignment of the label tape. The connection options are also designed for installation conditions with limited space and for direct mounting. As an alternative to connection via cable, devices are also available with an M8 connector with either a horizontal or vertical outlet.
The sensitivity adjustment of the GS 61 is performed via the teach-in function or simply via a multiturn potentiometer without the need for a tool. The operating head provided for this purpose can be removed to prevent manipulation. On the GS 63, the teach button can easily be locked via the teach input for the same reason.
Unlike the plastic housing of the GS 61, the GS 63 has a metal housing that is sealed to protect against corrosion by means of the cathodic dip painting method familiar from automotive engineering. With regard to technology, the GS 63 is characterized by a particularly high switching frequency and short response time, guaranteeing very good repeatability. The new ALC (auto level control) also contributes to an improvement in functional reliability. This enables the sensor to automatically correct the switching threshold during operation so that the maximum function reserve is always available, e.g. in the case of material differences between labels that are actually of the same type. A feature already familiar from the IGSU 14B and integrated in the new device version is a warning output. Thanks to a self-test in the device, errors that occur during teaching and during operation, such as soiling or a changed signal threshold, are displayed.
Leuze electronic
www.leuze.com
Background Evaluation Sensors from Pepperl+Fuchs
July 16, 2009 by admin
Filed under Photoelectric
TWINSBURG, OH – Pepperl+Fuchs Dura-Vue™ MLV12 Series Photoelectric Sensors are now available in diffuse mode with background evaluation. Dura-Vue background evaluation sensors provide a sensing range from 50 mm to 150 mm, with a 4 mm light spot that enables these sensors to detect even the smallest targets. They are engineered to detect all targets regardless of color or shape, making them well suited for use in material handling and packaging applications.
Dura-Vue™ series sensors feature a harsh-duty IP67 rated metal-framed housing with swivel connector, and deliver reliable operation in temperatures as low as -40°F. Users will also benefit from highly visible front and rear LED status indicators, cross-talk protection and high immunity to ambient light.
With Pepperl+Fuchs patented 4-in-1™ outputs, stocking and installation is significantly simplified because the sensor automatically sinks or sources its current based on the connected load. Alignment is easy with the aid of a visible red light source, while a potentiometer facilitates quick adjustments to the sensing range, as needed.
Background evaluation photoelectric sensors work by establishing a light path to a reference background object and back to the sensor. Targets are detected when they pass in front of the sensor and disrupt the light path. Even rounded or curved targets that otherwise may reflect light away from the sensor, and targets with poor reflectivity, are reliability detected.
Pepperl+Fuchs
www.pepperl-fuchs.com
Eaton Introduces View Series™ Photoelectric Sensors
March 25, 2009 by R. Nelson Parrish
Filed under Photoelectric
PITTSBURGH, PA - Eaton Corporation announces it is introducing the View Series™ of photoelectric sensors, comprised of the new IntelliViewTM and NanoViewTM product families. The View Series sensors expands Eaton’s photoelectric sensor capabilities with new models designed for a variety of challenging industrial applications. The IntelliView sensors are a family of compact, high-performance specialty photoelectric sensors aimed at the needs of packaging, material handling, and other machinery original equipment manufacturers (OEMs). The NanoView sensors are a family of sub-miniature rectangular photoelectric sensors designed for applications and industries where optical performance is important but smaller, less expensive sensors are required.
Models in the IntelliView product family detect grayscale, color and ultraviolet (UV) luminescent registration marks on product and packaging labels. Background and foreground suppression models allow for precision sensing over extended ranges to meet the needs of a wide variety of machinery OEM applications. Other models are capable of reliably measuring a target’s distance and providing an analog output to a control system.
The IntelliView family features:
The View Series of sensors also includes the NanoView family. These sub-miniature sensors are well suited for applications in packaging, material handling, food and beverage, and pharmaceutical industries where space is limited. Despite their small size, NanoView sensors are robust, powerful, highly reliable, and fit advanced optical performance into a tiny package.
The Nanoview family includes:
fixed-focus diffuse; a 20 foot thru-beam; and a 2.6 foot clear object detector.
The NanoView family also includes specialty sensors capable of solving difficult application challenges. These include a fixed-focus diffuse sensor, able to accurately sense targets with precision at its rated focal point of 3.9 inches; a clear object detector model capable of sensing clear objects such as plastic or glass bottles, films, sheets, and packing materials; and thru-beam mode sensors with a narrow beam option, able to detect small targets with high accuracy.
