> stefan_t wrote: > > <Snip stuff about inkjets and curing ovens> > > one or two components i needed i didn't have, > and they cost about 5eur (a temperature sensor > like lm335 and a precision reference with low > temperature drift). With things going like > that i will be much better off buying an > industrial controller for about 20eur. Not going to argue about use of industrial controllers against self built stuff (I always say why buy it for 10$ when you can build it yourself for only 100$) However - Unless its some magic type of LM335 (or LMx35 variant) then it is not going to like the 200+ degrees inside an oven. I think the normal LM-whatever tematrature sensors top out at 125 degrees. I think if you wanted to measure the temp in the oven then a thermocouple might be a good move. If you want to interface to analog electronics and didn't want to design your own cold junction compensation then an AD595 could be used (expensive and old). If you wanted to interface to an MCU then the MAX6675 would be a good choice. (direct temprature out on an SPI bus)
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How not to control ovens - was - The list is huge! Really huge!
2006-08-21 by Andrew