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Homemade sous-vide slow cooker conversion kit: Difference between revisions
Homemade sous-vide slow cooker conversion kit (view source)
Revision as of 15:04, 20 January 2015
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* Update 3 | * Update 3 | ||
: I've assembled a prototype which appears works in theory, but the manual provided is absolutely hopeless and it was starting to look as though it would be impossible to set the PID controller from the information at hand. I've collected together a heap of useful resources that might give some clues, will do some reading and return again. | : I've assembled a prototype which appears works in theory, but the manual provided is absolutely hopeless and it was starting to look as though it would be impossible to set the PID controller from the information at hand. I've collected together a heap of useful resources that might give some clues, will do some reading and return again. | ||
===Setup and testing=== | |||
This is what I did and it seemed to work: | |||
* Ensure PID is set to factory settings | |||
**Press SET for 2 secs and cycle through keys checking the values are as shown in the [[Media:Sestos PIC controller manual.pdf|Sestos manual]]. | |||
* Using digital thermometer compare readings between thermometer and PID display | |||
**If comparison is out then apply temperature correction offset to KEY <code>SC</code> (sensor calibration) to correct | |||
*Run Auto Adjustment by pressing <code>AT</code> for 2 seconds. It may take from a few minutes to a few hours to complete AUto Adjustment. | |||
**If Auto Adjustment does not commence, KEY <code>CtrL</code> needs to be set to 2. Once Auto Adjustment has completed KEY <code>CrtL</code> will be set back to 3 (normal use). | |||
''I ran Auto Adjustment with temperature controller set to 55° C and a heat source connected to the output. I'm not sure if that is required or not.'' | |||
You should now be ready to test the setup. | |||
=====Setting the required temperature===== | |||
To set the PID temperature threshold, just adjust using the arrow keys. Key << allows you to move the decimal point to enable setting to be quickly adjusted by incremeting in 1's 10's etc. | |||
As far as I can acertain, providing KEY <code>run</code> is set to 1 (automatic) the PID will automatically switch the solid state relay output on and off to allow temperature regulation of the heating device; a slow cooker in my case. | |||
===Useful resources=== | ===Useful resources=== | ||
* [[Media:Sestos PIC controller manual.pdf|Sestos PID controller manual.pdf]] | * [[Media:Sestos PIC controller manual.pdf|Sestos PID controller manual.pdf]] | ||
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* [http://homebrew.stackexchange.com/questions/7607/how-do-i-set-up-a-sestos-d1s-temperature-controller How do I set up a Sestos D1S temperature controller?] | * [http://homebrew.stackexchange.com/questions/7607/how-do-i-set-up-a-sestos-d1s-temperature-controller How do I set up a Sestos D1S temperature controller?] | ||
* '''[http://www.lindens.nu/projects/sous-vide/en.htm An excellent article by someone who has completed a similar project]''' ''from [http://www.lindens.nu wwwlindens.nu]'' | * '''[http://www.lindens.nu/projects/sous-vide/en.htm An excellent article by someone who has completed a similar project]''' ''from [http://www.lindens.nu wwwlindens.nu]'' | ||
===See also=== | ===See also=== | ||
* [http://en.wikipedia.org/wiki/PID_controller PID controllers - Wikipedia] | * [http://en.wikipedia.org/wiki/PID_controller PID controllers - Wikipedia] | ||