Re: Internet remote monitoring/switching
- From: "Homer J Simpson" <nobody@xxxxxxxxxxx>
- Date: Fri, 20 Oct 2006 20:23:38 GMT
<p.rauert@xxxxxxxxx> wrote in message
news:1161372553.054558.116670@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
HJ... you mentioned a local system. Something that pushes the reset
every 30 minutes when the temperature falls until it returns to normal.
You also mentioned that it could notify me of the problem. Do you know
if such a system is available? Many, many thanks, Pete
No, but my experience is that the bigger the loop, the bigger the problems.
So if it has to contact the internet, then you, then you have to tell it to
reset, and that has to go back over the net, the loop is too big.
What you want is a minimum temperature to be maintained AND you want to
know. This is two problems - reset the system AND log the events.
A system which relies only on AC power being on (which I assume is needed
for the boiler / pump to run) is best. So I would use a cheap thermostat
which closes the contacts mentioned "wires across the momentary low voltage
reset switch" -- simple and cheap. If you cannot hold the contacts closed
for technical reasons you could pulse them every 60 minutes with a simple
pulse timer -- hardware store type which can close the switch every half
hour or similar (type with sliding pins). Or something like
http://store.qkits.com/moreinfo.cfm/FK407 could be modified to do a 5 minute
pulse every half hour.
As for logging the events, I am sure there is a sensor system off the shelf
which could email you a summary of the temperature hour by hour, every day.
.
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