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ELFORUM - Forumul Electronistilor
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n0r1s

EC/TDS/PPM Meter

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salut

am avut nevoie de niste informatii legate de masurarea puritatii apei si am dat peste proiectul unui aparat pt masurarea conductivitatii lichidelor.

nu l-am construit insa poate intereseaza pe cineva.

 

http://www.octiva.net/projects/ppm/

 

 

date tehnice:

http://www.coleparmer.com/techinfo/tech ... tivity.htm

 

http://www.lenntech.com/unit-conversion ... engels.htm

 

catalogarea apei dupa uS:

apa pura 0.055 uS/cm

apa oras 50 uS/cm

 

in Bucuresti avem ~180PPM si 338uS la 24C. o apa filtrata prin osmoza inversa la 3.5bari are 14PPM si 34uS la 23C. apa distilata de se cumpara la benzinarii are 0.2-0.9PPM.

 

daca se apuca cineva sa-l construiasca as fi curios la cit se ridica pretul.

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