141 142 143 1431 1432 1433 144 standards and

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Unformatted text preview: 4.3 14.3.1 14.3.2 14.3.3 14.4 Standards and protection classes _______________________________ Standards___________________________________________________ Protection classes ____________________________________________ Colour coding________________________________________________ Colour symbols to DIN IEC 757 __________________________________ Colour coding to EN 50 044_____________________________________ Numerical designation to EN 50 044 _____________________________ Designs of proximity sensors ___________________________________ 213 213 214 217 217 217 218 218 © Festo Didactic GmbH & Co. KG • FP 1110 155 155 155 164 167 167 169 169 175 179 182 184 186 187 188 189 189 193 7 Contents 15. 15.1 15.1.1 15.1.2 15.1.3 15.1.4 15.1.5 15.1.6 15.1.7 15.1.8 15.1.9 15.1.10 15.1.11 Special designs and variants of proximity sensors ________________ Variants of inductive proximity sensors __________________________ Example of a universal two-wire design: Quadronorm by IFM ________ Proximity sensors for use in installations with explosion hazard ______ Magnetic field proof (welding plant) inductive proximity sensors _____ Inductive proximity sensors for higher temperature range ___________ Inductive proximity sensors for higher pressure range ______________ Inductive proximity sensors with large switching distance ___________ Inductive proximity sensors with high switching frequency __________ Inductive proximity sensors with idle return function __________...
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