Re: Re: Mains activated extension socket

["Peter and Jane" <pandj.munnoch@xxxxxxxxxxxxxx>]

Thanks David
I thought about something like that (althought I didn't know about the
Maplins product). Trouble is wouldn't the noise of the extractor hold the
unit switched on?
My "best idea so far" is a pir mounted on a fly lead with ax X10
Powerflash in mode 3 connected to the volt free contacts.
Plug the extractor into an X10 appliance module.
Position the pir say on the floor or on the leg of the chop saw or
whatever.
As I approach the saw the extractor starts. When I walk away after the
preset pir delay the extractor stops.
Meanwhile stop start use of the machine doesn't (within reason) stop and
start the extractor.
What do you think?
Rgds
Peter
PS Can any X10 user confirm if my understanding of Powerflash functionality
is correct? Thnx
----- Original Message -----
From: David Chapman
To: ukha_d@xxxxxxx
Sent: Sunday, November 04, 2007 2:47 PM
Subject: [ukha_d] Re: Mains activated extension socket


Automated Home Discussion> I need to turn on a dust extractor whenever a
woodworking machine is switched on (single phase, but let's say the full 13
amps surge.)

I had the same problem - and the current sensing device I had on a workshop
vac didn't work well as there was a 5 second delay on startup.

What I ended up using was a plug in "sound switch" that I bought
from Maplin
some years ago. It is branded "Home Automation order code 6001"
Although it
says it is only rated 500w in practice I've found it is fine with double
that !! Might not be the perfect solution but something with a sound sensor
could be the way to go.

David C





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