Use in welding installations where ac and dc fields

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ceiver side mode of operation can be compared to that of a reflex sensor. In this way, it is possible to greatly reduce susceptibility to contamination. 8.5 Notes on application Since the price of a complete pneumatic proximity sensor (nozzle and pressure amplifier/pressure switch) is generally higher than that of a standard inductive, capacitive or even optical proximity sensor, pneumatic proximity sensors are used preferably for special applications in new developments, where other proximity sensors are unsuitable. Advantageous applications for pneumatic proximity sensors: • Use in areas with explosion hazard. • Use in welding installations, where AC and DC fields are generated. • Use in damp and dirt and dust laden environment. • Use in high ambient temperatures. • Used in measuring filling levels of foaming liquids. 124 © Festo Didactic GmbH & Co. KG • FP 1110 8. Pneumatic proximity sensors 8.6 Characteristic curves of pneumatic proximity sensors The following illustrations show the characteristic...
View Full Document

This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.

Ask a homework question - tutors are online