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Old 01-11-2011, 05:34 PM #1
Agropop
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Question Električni ph merilec vode Vs ročni

Imam oba, el. merilec vode,ki je skalibriran in ghe ročni...
Problem je,da mi električni merilec pokaže v isti vodi vsakič,ko ga vzamem iz vode, ugasnem in postavim nazaj v isto vodo, drugačne meritve (zato verjetno imam ph swing in probleme z rastjo rož (poleg prej napačne zemlje)...).
Slikal sem isto vodo iz iste kantice,ki jo je izmeril ročni ph ghe in električni merilec vode...
Voda ni iz pipe ampak pride iz nekega hriba (se izogibam klorirani vodi iz pipe).

GHE pokaže ph vode takole, to je koliko?
https://img152.imageshack.us/i/ghetester.jpg/

Prva meritev z električnim merilcem vode
https://img121.imageshack.us/i/alim1620.jpg/

Ugasnil tester in nekje pol minute kasneje naredil naslednjo meritev,drugo...
https://img141.imageshack.us/i/alim1621.jpg/

Ponovil vajo pol minute kasneje,tretja meritev,ubistvu je tik po narejeni sliki pokazal 5,7ph in ne tok kot kaže slika...
https://img406.imageshack.us/i/alim1622.jpg/

Spet ugasnil in prižgal merilec in po cca pol min naredil test ph vode...
https://img820.imageshack.us/i/alim1631.jpg/

Zdej ne vem, a je meritev točna,ko se številka ph-ja ustavi in ne pada ali raste, al kako? Kako vam deluje el. tester ph vode (če ga uporabljate) ??

A se še komu zdi,da tale naparava ne deluje pravilno ali samo meni?

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Old 02-21-2011, 09:11 PM #2
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glede na to da si ga skalibriral in ne kaže točno ti ostane samo še to da kupiš nov PH meter!
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Old 02-22-2011, 09:13 AM #3
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ta ph meter so jajca. na zalost so rezultati rocnih meritev bolj tocni kot elektronika, zato ker za taprav ph meter nimas dnara pa premalo ti kaze glede na rocnega
izogibaj se vode s hriba ce nimas narejene analize, ker imam obcutek da te to jebe.
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Old 04-01-2011, 12:06 AM #4
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Kdaj pa je potrebno kalibrirat to stvar? Na kolko časa?
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Old 05-09-2011, 04:06 PM #5
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ph metra crkujejo se prestavljajo skratka nikoli ne mores bit ziher , edin ec od hanne mi ze drzi dve leti ostalo je crknilo prej kot v pol leta
Dobro je kalibrirat ko kupis in potem vsak mesc dva , odvisno kolko te zanima ce ti kaze prav
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