Temperature probe advice - RealBeer.co.nz2024-03-29T11:40:10Zhttp://www.forum.realbeer.co.nz/forum/topics/temperature-probe-advice?commentId=1500433%3AComment%3A191204&feed=yes&xn_auth=noI too am chasing my temperatu…tag:www.forum.realbeer.co.nz,2013-11-04:1500433:Comment:1912042013-11-04T02:28:11.653Zmattd2http://www.forum.realbeer.co.nz/profile/MattDixon
<p>I too am chasing my temperature probe calibration somewhat. I have a PID with a thermocouple mounted in the discharge side of my pump. I also have a cheap digital thermometer which I (thought was) calibrated in boiling/ice water. I calibrated the TC against that but now when I recirc during the last few minutes of the boil I only get 98°C at the pump! I am getting some digital probes (DS18B20) to use with an Arduino microcontroller, these are apparently calibrated at factory and are accurate…</p>
<p>I too am chasing my temperature probe calibration somewhat. I have a PID with a thermocouple mounted in the discharge side of my pump. I also have a cheap digital thermometer which I (thought was) calibrated in boiling/ice water. I calibrated the TC against that but now when I recirc during the last few minutes of the boil I only get 98°C at the pump! I am getting some digital probes (DS18B20) to use with an Arduino microcontroller, these are apparently calibrated at factory and are accurate to +/- 0.5°C so it will be interesting the see the difference between the TC and the DS18B20.</p>
<p>The other point that has been mentioned to me is if you have a probe mounted in the flow (like I do with the pump probe) is to have the flow directed along the probe not perpendicular to it. Had some good discussions on it when I was (I still am) building my setup - <a href="http://www.forum.realbeer.co.nz/profiles/blogs/new-brewery-build" rel="nofollow">http://www.forum.realbeer.co.nz/profiles/blogs/new-brewery-build</a></p> Good tips! I should totally g…tag:www.forum.realbeer.co.nz,2013-11-04:1500433:Comment:1911932013-11-04T00:09:14.760ZStu Hhttp://www.forum.realbeer.co.nz/profile/Stu
<p>Good tips! I should totally get one of those infrared readers.</p>
<p>Good tips! I should totally get one of those infrared readers.</p> I have a digital infrared aim…tag:www.forum.realbeer.co.nz,2013-11-04:1500433:Comment:1911902013-11-04T00:03:34.991ZPeter Smithhttp://www.forum.realbeer.co.nz/profile/PeterSmith
<p>I have a digital infrared aim and shoot temp reader and find that the actual outside temp of my glass carboys is always about 1.5C lower then a STC-1000 probe Duct taped to the carboy (while around 20C), perhaps if I had insulation around it, would equalise but I just manually compensate. Its much closer when at 2C</p>
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<p>I have a digital infrared aim and shoot temp reader and find that the actual outside temp of my glass carboys is always about 1.5C lower then a STC-1000 probe Duct taped to the carboy (while around 20C), perhaps if I had insulation around it, would equalise but I just manually compensate. Its much closer when at 2C</p>
<p></p> With ice in water, you just n…tag:www.forum.realbeer.co.nz,2013-11-03:1500433:Comment:1911872013-11-03T23:52:46.513ZSmiffyhttp://www.forum.realbeer.co.nz/profile/PaulReginaldSmith
<p>With ice in water, you just need to keep stirring it, and watch the readout. Once the readout is steady, you have achieved equilibrium between the water and the ice, hence freezing point, but you must keep stirring.</p>
<p>With ice in water, you just need to keep stirring it, and watch the readout. Once the readout is steady, you have achieved equilibrium between the water and the ice, hence freezing point, but you must keep stirring.</p>