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independent proximity sens use?


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howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: December 14, 2009 at 6:26 PM / IP Logged  
Quite right Darren, but I realised the point about more than 3 mins that's why I mentioned Mr. I. The choice is either a 528t to do the whole job with a 3 min delay or a relay + cap + resistor to hold the relay for the required time. There's the 30sec relay hold in the relay section here you would have to juggle the cap and resistor sizes to get there.
two12 
Copper - Posts: 84
Copper spacespace
Joined: November 24, 2009
Posted: December 14, 2009 at 6:54 PM / IP Logged  
hi t&t, Howie II
Howie II, I think you explained it OK, I just had trouble reading it.
t&t, so the output after the relay as you have described, does it turn off itself or stay on?
Thanks
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