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Edvin

Temperature controll

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On 04.11.2016. at 11:38 AM, Edvin said:

Do have any one a sample of temperature controller for P100 to JZ10-11-UA24 ???

I looking for controll with PID

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Yes, I'd like to know that is how it works what for logic or math functions someone  use for control using bulb/dry PT100  .. I know that the humidity sensor is better and simple variant.
But I'd like to know, and this principle ..

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I actually ran into this on a test fixture designed for vacuum cleaners.  Moisture content of the air was part of the power calculation.

Here is a paper on the equations needed to do what you want:

http://maxwellsci.com/print/rjaset/v6-2984-2987.pdf

Look through the equations and you see exponents are involved in getting the saturation vapor pressure.  This math is beyond what a Jazz is designed to do.  Floating points are needed.

Unless you're really a glutton for punishment.  Google "Taylor Series Expansion of Exponential Functions", which can probably be done in a Jazz.  Many, many moons ago I did this in a Siemens PLC to calculate cosine.

However, if you ask me to provide an example of how to do a Taylor Series in a Jazz I will reach through the Internet and choke you. :lol:

Joe T. 

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