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Re: Loss of temp sensors due lighting.
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Posted by Bill on Monday, 29 June 2009, at 12:47 p.m.,
in response to Loss of temp sensors due lighting., posted by Bob
Bob, I'm sorry to hear about your loss of sensors. If this were to happen to me it would be a big effort to recover. The soldering effort, and the WEL reprogramming effort, would be my 2 biggest tasks (I use all 127 WEL device 'slots' so I have a lot of references via WEL 'Expression' devices to the actual sensors.)
Here are a couple of suggestions:
The first is to dedicate a sine-wave producing UPS to your WEL (I use a small APC Smart-UPS). I don't know if it (or anything for that matter) would be effective for a direct lightning strike, but, I think it provides some good degree of protection from line voltage induced surges (and certainly keeps your WEL unit running during a power outage).
The second suggestion is simply to show you how to get a near real-time notice that something has gone wrong with your 1-wire bus.
Set up your WEL Device Alert (WELXXXX Setup screen) to '_Cc is greater than 0'. This will cause the WEL unit to send an email to you at the moment something goes wrong with your 1-wire network. I have my email titled "WEL 1-wire bus no longer functioning."
Hope this helps. Good luck recovering!
Best regards,
Bill
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