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Old 03-26-2012, 03:01 AM   #11
jpalarchio
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kladue, I generally get about 65% of what you're talking about but it usually points me in the right direction...

Curious as to your thoughts on using the one-wire temperature sensors over something like the LM34? Is one better than the other? Given that I'm working on the Arduino platform, obviously the support is there for both. I started with the one-wire sensors way back then because I had some from another project and I guess I've just got used to them.

The volume measurement seems to me the big piece that provides added value and unfortunately seems cost prohibitive. I've been trying to think of other methods such as reading a float within my sight gauge but most ideal would be a stainless sensor I could just attach to the vessel.

Flow sensors aren't of that much interest to me. I have a few Swissflow sensors that I measure my RO system efficiency with but I'm not sure I'd want to deal with them in a brewing application.

 
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Old 03-26-2012, 11:39 AM   #12
kladue
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The one wire sensors have merit, but the response time is the main issue with control applications. The sensor I was looking at is the AD22100AT in a TO-82 package. With the app and boards I can scan all 8 analog inputs faster than one of the one wire sensors will respond to request for data.

 
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Old 03-26-2012, 12:57 PM   #13
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high temp float sensors do not over think it guys. float sensors have been used since the toilet
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Old 03-26-2012, 01:27 PM   #14
jpalarchio
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Quote:
Originally Posted by CCBrewer View Post
high temp float sensors do not over think it guys. float sensors have been used since the toilet
Not sure a toilet float has the type of resolution I'm looking for...

 
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Old 03-26-2012, 04:09 PM   #15
LordUlrich
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You could take the float and connect it to a pot and get pretty good resolution. Although you will need to garuntee a enough space for it to swing and use a copper or stainless float.
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Old 03-27-2012, 05:37 AM   #16
kevin509
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I liked the web UI of the BCS system but not having to actually program processes, at least with the basic brewtroller you just plug it time and temps. BCS required a lot of extra circuitry where the brewtroller allows LEDs and switches to simply connect to the main board or relay boards. Even the e stop switch is simplified.

 
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Old 03-27-2012, 11:50 AM   #17
kladue
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The brewtroller is probably the most capable of the two, and gets better support from the builders. The brewtroller would let you start with the basics and let you add additional levels of control later, and is so much more than just the auber PID's that most use.
I do process instrumentation and have a pretty good understanding of what is needed in sensors and control devices for automation, and have sufficient skills in fabrication, electronics, and programming to create control systems. After building a nearly totally automated system, there is a better understanding of what works and what doesn't that would save time for others trying to build automated systems.

 
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Old 03-27-2012, 01:04 PM   #18
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Guys, could we move this discussion to the Automated Forum Section please
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Old 03-27-2012, 03:21 PM   #19
jpalarchio
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Quote:
Originally Posted by pickles View Post
guys, could we move this discussion to the automated forum section please
+1

 
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Old 03-27-2012, 09:06 PM   #20
kevin509
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iPhone app not showing "automated" forum or the ability to move the thread??

 
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