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DIY Thermoelectric Peltier Refrigeration
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<blockquote data-quote="Nightjar" data-source="post: 518258" data-attributes="member: 1414"><p>Bicter,</p><p>On the thermostat shown in above pic you can "set" activation temperature but not the cutout temperature. </p><p>The readout on the pic is the ambient temp (difficult to read) 23.8C. You probably notices the Engel ambient temp reads 25, I was fiddling remember so they don't match.</p><p>For the test I set the activation at 22C so the Peltier is running, when the ambient drops to 20C it will automatically cut out. The thermostat is designed this way (2C cut out lag) so what ever device you are controlling doesn't cut in & out if the ambient temperature hovers around your set point.</p><p>No doubt there are thermostats that you can set upper & lower temps. In this instance working with the ambient temperature suffices.</p><p></p><p>CTX, Totally agree, very addictive. Years ago knocked up a random number picker 1 - 45 using led's and electronics, it worked but never gave me the winning lotto numbers. :lol:</p></blockquote><p></p>
[QUOTE="Nightjar, post: 518258, member: 1414"] Bicter, On the thermostat shown in above pic you can "set" activation temperature but not the cutout temperature. The readout on the pic is the ambient temp (difficult to read) 23.8C. You probably notices the Engel ambient temp reads 25, I was fiddling remember so they don't match. For the test I set the activation at 22C so the Peltier is running, when the ambient drops to 20C it will automatically cut out. The thermostat is designed this way (2C cut out lag) so what ever device you are controlling doesn't cut in & out if the ambient temperature hovers around your set point. No doubt there are thermostats that you can set upper & lower temps. In this instance working with the ambient temperature suffices. CTX, Totally agree, very addictive. Years ago knocked up a random number picker 1 - 45 using led's and electronics, it worked but never gave me the winning lotto numbers. :lol: [/QUOTE]
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Outdoor & Recreation
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DIY Thermoelectric Peltier Refrigeration
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