A Digital Hydromter - RealBeer.co.nz2024-03-28T11:02:28Zhttp://www.forum.realbeer.co.nz/forum/topics/a-digital-hydromter?commentId=1500433%3AComment%3A240894&xg_source=activity&feed=yes&xn_auth=noFinally finished with it in t…tag:www.forum.realbeer.co.nz,2017-08-19:1500433:Comment:2410172017-08-19T09:51:10.730Zcjmchttp://www.forum.realbeer.co.nz/profile/Clint
<p>Finally finished with it in the fermentation vessel. Found it a bit difficult to get an 'action shot' so I roped in one of my wife's vases.. </p>
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<p>Finally finished with it in the fermentation vessel. Found it a bit difficult to get an 'action shot' so I roped in one of my wife's vases.. </p>
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<p></p> Sorry for the late response.…tag:www.forum.realbeer.co.nz,2017-08-13:1500433:Comment:2408142017-08-13T08:20:04.545Zcjmchttp://www.forum.realbeer.co.nz/profile/Clint
<p>Sorry for the late response. Just recovering from Beervana today. :)</p>
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<p>Just had a look my ordering history, costs (all $NZ):</p>
<ul>
<li>D1 Wemos $4</li>
<li>Charger $2.4</li>
<li>Battery $24 (This is brought in NZ)</li>
<li>MPU 6050 $1.5</li>
<li>Container $4</li>
<li>DS18b20 $1</li>
<li>Misc. Resistors and switch, board $5</li>
<li>3d Printer PLA $2</li>
</ul>
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<p>So a total of around $44, the major cost was the battery @ $24. You could find a cheaper battery…</p>
<p>Sorry for the late response. Just recovering from Beervana today. :)</p>
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<p>Just had a look my ordering history, costs (all $NZ):</p>
<ul>
<li>D1 Wemos $4</li>
<li>Charger $2.4</li>
<li>Battery $24 (This is brought in NZ)</li>
<li>MPU 6050 $1.5</li>
<li>Container $4</li>
<li>DS18b20 $1</li>
<li>Misc. Resistors and switch, board $5</li>
<li>3d Printer PLA $2</li>
</ul>
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<p>So a total of around $44, the major cost was the battery @ $24. You could find a cheaper battery somewhere.</p>
<p>The biggest pain was getting a hold of the container, it was a bit smaller than the open source version but workable but I've now got a couple of spares.</p>
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<p>I'm wellington-based I can post a couple of pics in a couple of days. </p> interesting - what do you thi…tag:www.forum.realbeer.co.nz,2017-08-11:1500433:Comment:2410092017-08-11T01:51:38.992ZRhys Williamshttp://www.forum.realbeer.co.nz/profile/RhysWilliams
<p>interesting - what do you think it cost in parts in the end?</p>
<p>I'd be keen to see it in action - I'm in Auckland.</p>
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<p>interesting - what do you think it cost in parts in the end?</p>
<p>I'd be keen to see it in action - I'm in Auckland.</p>
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<p></p> I've built one of these: http…tag:www.forum.realbeer.co.nz,2017-08-10:1500433:Comment:2408942017-08-10T10:21:43.271Zcjmchttp://www.forum.realbeer.co.nz/profile/Clint
<p>I've built one of these: <a href="https://github.com/universam1/iSpindel" target="_blank">https://github.com/universam1/iSpindel</a> I've got it doing a calibration run at the moment in my fermenter. </p>
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<p>I picked up parts from aliexpress plus had to get the container tube from ebay. Putting it together It took a bit of fiddling with a couple of failed builds due to bad circuit layout and borking one of the modules via short circuit... </p>
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<p>I've built one of these: <a href="https://github.com/universam1/iSpindel" target="_blank">https://github.com/universam1/iSpindel</a> I've got it doing a calibration run at the moment in my fermenter. </p>
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<p>I picked up parts from aliexpress plus had to get the container tube from ebay. Putting it together It took a bit of fiddling with a couple of failed builds due to bad circuit layout and borking one of the modules via short circuit... </p>
<p></p> $225 2nd hand off trademe, t…tag:www.forum.realbeer.co.nz,2017-07-24:1500433:Comment:2409862017-07-24T19:41:51.020ZPeter Smithhttp://www.forum.realbeer.co.nz/profile/PeterSmith
<p>$225 2nd hand off trademe, they are about $320 new.</p>
<p>Taking a small sample in most industries is not a barrier, vs hydrometer which requires a lot of sample</p>
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<p>$225 2nd hand off trademe, they are about $320 new.</p>
<p>Taking a small sample in most industries is not a barrier, vs hydrometer which requires a lot of sample</p>
<p></p> I have seen this unit in my b…tag:www.forum.realbeer.co.nz,2017-07-24:1500433:Comment:2406802017-07-24T07:26:30.090ZRowan Walshhttp://www.forum.realbeer.co.nz/profile/RowanWalsh
I have seen this unit in my brief search. I don't suppose you have compared the measurements to a calibrated hydrometer by chance? Looks nice and easy to sanitise.<br />
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I am assuming you are using a plastic fermentation vessel? The low thermal conductivity of the plastic will give you a little bit of temperature difference. Does the temp difference stay constant between the two devices?<br />
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Krausen forming on the top of the sensor shouldnt be too much of an issue for my sensor due to the sensing…
I have seen this unit in my brief search. I don't suppose you have compared the measurements to a calibrated hydrometer by chance? Looks nice and easy to sanitise.<br />
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I am assuming you are using a plastic fermentation vessel? The low thermal conductivity of the plastic will give you a little bit of temperature difference. Does the temp difference stay constant between the two devices?<br />
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Krausen forming on the top of the sensor shouldnt be too much of an issue for my sensor due to the sensing portion being submersed, so hopefully it will be tolerant in that regard.<br />
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Do you have any connection issues with the bluetooth? Interesting unit. How much di…tag:www.forum.realbeer.co.nz,2017-07-24:1500433:Comment:2406762017-07-24T07:12:02.325ZRowan Walshhttp://www.forum.realbeer.co.nz/profile/RowanWalsh
Interesting unit. How much did that cost you? Pretty reasonable accuracy it has too.<br />
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The downside for me is the fact that you still need to take a sample in order to obtain a measurement. I want to create a unit that continuosly outputs data and has the ability to be accessed remotely.<br />
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Good point about the grape growers, the wine industry would be another target area.
Interesting unit. How much did that cost you? Pretty reasonable accuracy it has too.<br />
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The downside for me is the fact that you still need to take a sample in order to obtain a measurement. I want to create a unit that continuosly outputs data and has the ability to be accessed remotely.<br />
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Good point about the grape growers, the wine industry would be another target area. I have this device:
https://…tag:www.forum.realbeer.co.nz,2017-07-24:1500433:Comment:2407812017-07-24T01:58:37.882ZRhys Williamshttp://www.forum.realbeer.co.nz/profile/RhysWilliams
<p>I have this device:</p>
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<p><a href="https://tilthydrometer.com/products/brewometer" target="_blank">https://tilthydrometer.com/products/brewometer</a></p>
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<p>It works pretty well and sends values via bluetooth - the downside is you need your phone or a tablet next to it to record.</p>
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<p>Using this I have discovered:</p>
<p>a. wort temperature is higher than the fridge cabinet (stc-1000 themoresistor taped to side of fermentor)</p>
<p>b. The first couple of days -…</p>
<p>I have this device:</p>
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<p><a href="https://tilthydrometer.com/products/brewometer" target="_blank">https://tilthydrometer.com/products/brewometer</a></p>
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<p>It works pretty well and sends values via bluetooth - the downside is you need your phone or a tablet next to it to record.</p>
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<p>Using this I have discovered:</p>
<p>a. wort temperature is higher than the fridge cabinet (stc-1000 themoresistor taped to side of fermentor)</p>
<p>b. The first couple of days - gravity really drops fast (I'm oxygenating by wort) - so a diactyl rest is earlier than you think</p>
<p>c. Beers with a high krausen sit on the device, changing the value, rocking the fermentor to get the crap off the top helps.</p>
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<p>There is an open source/open hardware version here:</p>
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<p><a href="https://github.com/universam1/iSpindel" target="_blank">https://github.com/universam1/iSpindel</a></p>
<p><a href="https://www.thingiverse.com/thing:1996171" target="_blank">https://www.thingiverse.com/thing:1996171</a></p>
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<p>Cheers</p>
<p>Rhys</p>
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<p></p> I have an Atago http://www.…tag:www.forum.realbeer.co.nz,2017-07-23:1500433:Comment:2406722017-07-23T19:36:54.053ZPeter Smithhttp://www.forum.realbeer.co.nz/profile/PeterSmith
<p>I have an Atago <a href="http://www.atago.net/product/?l=en&f=products_pal.php" rel="nofollow" target="_blank">http://www.atago.net/product/?l=en&f=products_pal.php</a></p>
<table border="0" cellspacing="0">
<tbody><tr><th>Resolution</th>
<td>Brix : 0.1%<br></br>Temperature : 0.1゚C</td>
</tr>
<tr><th>Measurement Accuracy</th>
<td>Brix : ±0.2 %<br></br>Temperature : ±1゚C</td>
</tr>
</tbody>
</table>
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<p>I like it and for about the last ten brews have used refract only once and found…</p>
<p>I have an Atago <a rel="nofollow" href="http://www.atago.net/product/?l=en&f=products_pal.php" target="_blank">http://www.atago.net/product/?l=en&f=products_pal.php</a></p>
<table border="0" cellspacing="0">
<tbody><tr><th>Resolution</th>
<td>Brix : 0.1%<br/>Temperature : 0.1゚C</td>
</tr>
<tr><th>Measurement Accuracy</th>
<td>Brix : ±0.2 %<br/>Temperature : ±1゚C</td>
</tr>
</tbody>
</table>
<p></p>
<p>I like it and for about the last ten brews have used refract only once and found the measurement accuracy to move around by a lot more then the digital meter (ie refract has low repeatability if multiple measyrements in a row), I have hydrometer calibrated three times and its been spot on.</p>
<p>They work in low light levels as they have inbuilt led for measurement . Big plus if you brew a lot at night.</p>
<p>They temp adjust BUT imho if you leave the sample for 2mins then retest you get better accuracy if its 68C wort, instant is fine for just a mash check. ie your plato can move by +0.5 plato as sample cools from 68C but after 2 mins it settles and repeats every time.<br/><br/></p>
<p>I wouldn't be without it now, but rate my ph pen as actually more important to final beer outcome.</p>
<p>I think there are other industry areas way bigger then home brew, thinking grape growers etc</p>
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