Ultrasonic label sensor esf-1 series

IO-Link

The esf-1 fork sensor can detect labels reliably even at high label speeds. Highlights 3 Teach-in methods for the detection of labels even outside the standard Response time < 300 µs: for use at high web speeds Housing in fork format with very compact dimensions QuickTeach simplified Teach-in process IO-Link interface for support of the new industry standard Smart Sensor Profile more transparency between IO-Link Devices Smart Sonic Function recipe management via IO-Link UL Listed to Canadian and US safety standards Basics Label and splice sensor as a fork sensor 2 switching outputs for label/ splice detection and web break monitoring 3 LEDs and 1 button on the top of the housing Teach-in optionally via button or pin 5 LinkControl as optional assistance for installation and commissioning Description The functional principle Labels are guided through the fork. An ultrasonic transmitter in the lower leg of the fork beams a fast sequence of pulses through the backing material. The sound pulses cause the backing material to vibrate such that a greatly attenuated sound save is beamed from the opposite side. The receiver in the upper leg of the fork receives this sound wave. The backing material transmits a different signal level from the label. This signal difference is evaluated by the esf-1. The signal difference between the backing material and the label can be very slight. To ensure a reliable distinction, the esf-1 has to learn the label. The esf-1 can reliably detect high-transparency, reflective materials as well as metallised labels and labels of any colour. The measurement cycle time automatically self-adjusts to the sound power required.