tag:blogger.com,1999:blog-4211004407403538733.post5775141731814747115..comments2023-05-25T00:56:10.180-07:00Comments on Noble Square Brewing: Cheap Digital Temperature ControllersSeñor Brew™http://www.blogger.com/profile/16551091801092085016noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-4211004407403538733.post-88457067354271492922013-03-19T05:36:11.452-07:002013-03-19T05:36:11.452-07:00Great post - We're going to write about how to...Great post - We're going to write about how to rewire this digital temp controller. <br /><br />http://www.northernbrewer.com/shop/johnson-controls-a419-digital-temp-controller.htmlBrew Dude Johnhttp://www.brew-dudes.comnoreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-82618321041093055732012-08-31T14:47:43.374-07:002012-08-31T14:47:43.374-07:00It is a coincidence. This post is 2 years old, an...It is a coincidence. This post is 2 years old, and I actually made the modifications probably 4 years ago, so I no longer have the worksheet. But I do remember that I had to convert to Celsius (actually Kelvin) when working it out.<br /><br />What range are you trying to control in? I ask because I no longer use the controller with the alternate thermistor. I use the original with the temperature set to 45F in my El Kegerator, and now have a lagering fridge with it's original thermostat that can be set from 33F to 47F. (I ferment lagers at 47F and lager at 33F). Señor Brew™https://www.blogger.com/profile/16551091801092085016noreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-60448107380499108982012-08-31T11:39:44.551-07:002012-08-31T11:39:44.551-07:00Man, looked at your link for the math...what math ...Man, looked at your link for the math...what math did you do? Does each 1k ohm = 1deg F for an NTC thermistor, or was that just a coincidence in this case?Anonymoushttps://www.blogger.com/profile/16864788661433879684noreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-90512794064512735692011-04-29T15:04:27.173-07:002011-04-29T15:04:27.173-07:00Thanks for the writeup. I have been searching the ...Thanks for the writeup. I have been searching the internet all day to find out what kind of thermocouple the LUX WIN100 had. Now that I know it is just a thermistor I'm all set to purchase one and modify it.elementfiftyfournoreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-38133321945814952242011-04-18T06:18:52.980-07:002011-04-18T06:18:52.980-07:00Yes, the voltage is reduced. The whole thing is i...Yes, the voltage is reduced. The whole thing is in charge of controlling a relay that physically switches the 120 on and off. The rest of it is probably 5V or 3V DC.Jessiehttps://www.blogger.com/profile/13110372523975798479noreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-48309489149418084682011-02-13T09:25:51.962-08:002011-02-13T09:25:51.962-08:00JDS:
1. Thanks
2. Yes
3. I assume it is reduced v...JDS:<br /><br />1. Thanks<br />2. Yes<br />3. I assume it is reduced voltage. If you search the allied electric site, you should be able to find the replacement sensor. Even though I posted this last year, I actually made the modifications years ago, so I'm a little fuzzy on the details.Señor Brew™https://www.blogger.com/profile/16551091801092085016noreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-32209346054606668212011-02-12T09:42:12.772-08:002011-02-12T09:42:12.772-08:001. Good idea.
2. Could you have extended the therm...1. Good idea.<br />2. Could you have extended the thermostat lead by disconnecting it like you show in the second part and connecting the lamp cord directly to the board? That would eliminate one splice.<br />3. Is the thermostat sensor at 120volt or is it reduced voltage?JDS2020@lazytexan.comnoreply@blogger.comtag:blogger.com,1999:blog-4211004407403538733.post-24565275635105111372010-07-11T08:09:33.319-07:002010-07-11T08:09:33.319-07:00Senor Brew,
Nice blog posting. I like the idea of ...Senor Brew,<br />Nice blog posting. I like the idea of extending the probe using lamp cord, it seems like an easy modification. Keep on brewin'.<br />mark<br />Beer Diary...markhttps://www.blogger.com/profile/02629477662540676675noreply@blogger.com