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Reed switches in safety vane applications
Optic sensor lenses need to be exceptionally clean for vane sensing applications. A reed switch and a magnet are combined into one package with a specific distance between them to form a normally closed (NC) vane sensor. When ever a ferrous part comes between them, the magnetic field is shunted and the reed switch opens. Normally open (NO) vane sensors can be designed by using a normally closed reed switch on one side and a magnet on the other side which is strong enough to keep the NC reed switch open. Reed switch based vane sensors can work in very dirty industrial environments and grease and dust do not affect its working. Common applications are conveyor belt part sensing, industrial mixer speed sensing, etc. Suitable products: MM-1018 and UM-0018 ultra-miniature reed switches in vane sensors. |
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Reed Relays and Electronics India Limited, 2008
