Thank you for all of your comments relating to interlocks. Your 
     comments have been a great help. 
     
     In addition to our line of laboratory equipment, we manufacture some 
     saws and grinders to prepare samples of metal for analysis. Several of 
     these fall under the Machinery Directive. In my search for interlocks 
     and safety relays, I found a company called Pilz. They are a big PLC 
     manufacturer in Germany and have a line of Safety relays. 

They pro
     vi
     ded me a software package called the Interactive Guide to Machinery 
     Safety, and a book called a Guide to the Machinery Safety Standard. 
     

These ha
     ve
      been a great resource for me, and I would recommend them to anyone 
     who deals with the Machinery Directive.
     
     They have a US office in Michigan, phone (810) 473-1133, FAX 
     (810)473-3997, and a UK office, phone 0 15 36/46 07 66.
     
     Thanks again for all of the great information on this newsgroup.
     
     Ray Russell
     
     [email protected]

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