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Unread 05-13-2004, 04:27 PM   #15
nicozeg
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Join Date: Sep 2002
Location: Santiago, Chile
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Quote:
Originally Posted by pHaestus
You're going to really need to calibrate either way nicozeg; even the 6655s are only +/-1C over a range we aren't interested in with water (60c eh?).

Of course it will need calibration, but 6655s +/-1º is a lot better than 1668s +/-2º

Besides the volt monitor has an aditional advantage: Readings can be conpensated for variations in supply voltage. dont know if you have made this on your test setup, but it seems very usefull if using the pc power supply. We know that psu rails are not that steady.

Four external sensors can be made with two 6655, it will require very little aditional board space, and wont add too much to the cost. (6655 is cheaper than 1668)
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