Optical Forked Photoelectric Sensors

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