The UPG is a small, general purpose, thread break sensor. It operates on the piezoelectric principle, detecting the yarn movement. This working principle makes it suitable for all types of yarns and insensitive to dust, dirt and humidity variations.
The sensor has an optocoupler output suitable for PLC or other electronic control devices. A LED (light emitting diode) indicates the yarn movement. The ceramic sensor part can be used either as a closed eyelet or as an open bar. Several sensors can be connected in parallel.
When it is not possible to connect the Eltex sensors G3s, EVG-s or UPG directly to the machine control (PLC), the Eltex FlexiHub can instead be used.