Dissolved Oxygen Module.

Request new hardware or ideas for the controller

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Joined: Tue Nov 05, 2013 8:40 am
Location: Houston TX
PostPosted: Sun Jan 19, 2014 5:16 pm
Or hope mindstream monitor releases soon and spend an extra 400$ and get live monitoring of DO and everything else??
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Posts: 378
Joined: Mon Oct 24, 2011 7:52 pm
Location: Saint Louis
PostPosted: Mon Jan 20, 2014 12:07 pm
rimai wrote:Something similar, but with much lower voltage ranges.
It's in the micro volts instead of mili volts.
Here is a good article:
http://www.gatewaycoalition.org/files/H ... 2_1_1f.htm



Not sure I understand what you are saying. Would this Atlas probe for example work in the range of one of the other modules, or use the RA board pH BNC? Not that I really want to spend $200, but if I come across a cheap probe, it might be worth a try. I got a cheap Ca probe on ebay, but since it isn't designed to stay submerged, it was kind of pointless.

Thanks,
Jon

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Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Mon Jan 20, 2014 12:20 pm
It would read, but the scale would be too low to be any useful.
The module would have to be modded to change the gain by 1000 times.
Roberto.
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Joined: Mon Oct 24, 2011 7:52 pm
Location: Saint Louis
PostPosted: Mon Jan 20, 2014 1:05 pm
ahh. I guess that is what the BNC board in the kit must do. I suppose I could hook it up to an arduino board and send the reading through I2C like another module. Assuming I had time, extra money, and three other projects that get completed... ;) :geek:
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