Any temperature suggestions?

Jim Cook

I would like to read a temperature of 225 to 275 degrees F and control a 110 voult heater to maintain a temperature set between that range. Naturally, I would like to use the basic stamp and perhaps mounted on the Board of Education. Any suggestions?

Duffer

Have you looked at the Parallax solder pot controller in the "Customer Applications, Industrial" section of the Parallax site?

http://www.parallax.com/tabid/335/Default.aspx

And here: http://forums.parallax.com/showthread.php?p=637023

Duffer


Post Edited (Duffer) : 10/28/2008 11:58:18 PM GMT

erco

Air, water/steam, oil? What are you measuring? Can you mount a thermistor or thermocouple on the container, or must it be immersed in the medium?

You can get an water or oil temperature sender for an automotive application, which will have a resistance proportional to the temperature. You can RCTIME that resistance for a measurement, then have the Stamp switch a relay or SSR to control your heater.

OR... just use a $1.50 LM339 quad comparator as a controller. Set it & forget it. And save your Stamp for funner things, like robots!

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·"If you build it, they will come."

Jim Cook

Thanks Guys. I'll look into both suggestions.