Document b52vLJ6xXLd2oOzdvVj6LgDMO

PFAS - exception request #556132 #556147 #556148 #556149 #818282 for Foil Disk Teflon FEP 04-CPZ0 D Foil Disk FEP will be used as protection foil for Ultrasonic Transducer/Sensor. FEP foil is adhesive due to a special pre-treatment and can be glued strong to the decoupling layer. Developing an alternative solution will be a very complex and long-lasting project. Transducer with protection foil will be used for chemical resistance and also for mechanical resistance. Filling level monitoring in tanks with chemical liquids Process monitoring in cleaning systems Outdoor application Field spray application in agriculture Street building machines. If transducer front surface is contaminated with chemical substances the Decoupling layer and embedding foam can be damaged and lead to malfunction. If front surface of decoupling layer is contaminated with dirt, they will be cleaned with high pressure cleaner and damage the embedding foam 11.07.2023