{"id":154993,"date":"2020-06-26T12:35:16","date_gmt":"2020-06-26T12:35:16","guid":{"rendered":"http:\/\/blog.hannaservice.eu\/poboljsanje-kvalitete-vina-osnove-razumijevanja-rada-ph-metra\/"},"modified":"2023-12-13T00:04:40","modified_gmt":"2023-12-13T00:04:40","slug":"poboljsanje-kvalitete-vina-osnove-razumijevanja-rada-ph-metra","status":"publish","type":"post","link":"https:\/\/blog.hannaservice.eu\/hr\/poboljsanje-kvalitete-vina-osnove-razumijevanja-rada-ph-metra\/","title":{"rendered":"Pobolj\u0161anje kvalitete vina \u2013 osnove razumijevanja rada pH metra"},"content":{"rendered":"\t\t
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pH meter je naj\u010de\u0161\u0107e jedan od najnerazumijevanijih dijelova opreme u vinarskom laboratoriju. Ima tendenciju da bude stavka o kojoj se zapravo ne razmi\u0161lja tako dugo dok daje ponovljiva o\u010ditanja kalibracijskim puferima koje imate pri ruci (bili svje\u017ei ili ne). Stoga smo htjeli produbiti znanje osnovnog rada pH metra prosje\u010dnog vinara kako bismo pomogli svima da bolje razumiju ovaj va\u017eni dio laboratorijskog hardvera, pobolj\u0161ali Va\u0161e rezultate pH ispitivanja i ukupnu kontrolu kvalitete, a istovremeno poma\u017eu\u0107i u pro\u0161irenju vijeka trajanja klju\u010dnog komada opreme u vinariji.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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To\u010dan, pouzdan pH metar vjerojatno je najva\u017eniji dio laboratorijske opreme u koju se mo\u017ee ulo\u017eiti u vinariji. pH nije samo naj\u010de\u0161\u0107a analiza koju \u0107e obavljati vinski laboratorij, ve\u0107 je diskutabilno i onaj parametar laboratorijskog testiranja vinarije koji najvi\u0161e odra\u017eava cjelokupno zdravlje va\u0161eg vina. Pritisci na dulje vrijeme odga\u0111anja branja gro\u017e\u0111a kako bi se postiglo ultrazrelo gro\u017e\u0111e \u010desto mogu dovesti do pH vrijednosti od 3,8 ili vi\u0161e, ostavljaju\u0107i vina podlo\u017ena ne\u017eeljenom kvarenju ili oksidacijskim problemima, posebno \u0161to se industrija sve vi\u0161e i vi\u0161e kre\u0107e ka razumnoj primjeni SO2\u00a0u podrumu.<\/p>\n

pH meter je naj\u010de\u0161\u0107e jedan od najnerazumijevanijih dijelova opreme u vinarskom laboratoriju. Ima tendenciju da bude stavka o kojoj se zapravo ne razmi\u0161lja tako dugo dok daje ponovljiva o\u010ditanja kalibracijskim puferima koje imate pri ruci (bili svje\u017ei ili ne). Stoga smo htjeli produbiti znanje osnovnog rada pH metra prosje\u010dnog vinara kako bismo pomogli svima da bolje razumiju ovaj va\u017eni dio laboratorijskog hardvera, pobolj\u0161ali Va\u0161e rezultate pH ispitivanja i ukupnu kontrolu kvalitete, a istovremeno poma\u017eu\u0107i u pro\u0161irenju vijeka trajanja klju\u010dnog komada opreme u vinariji.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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\u0160to je to\u010dno pH metar?<\/strong><\/h2>\n

Ukratko, pH metar je sonda koja formira elektri\u010dni krug, mjeri napon tog kruga dok djeluje s nabijenim ionima (H +\u00a0ili OH\u2013<\/sup>) u otopini. Pogledajmo HI10480 sondu za pH i temperaturu koja dolazi uz ure\u0111aj edge tvrtke Hanna Instruments kako bismo bolje razumjeli.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Unutra\u0161njost elektrode sadr\u017ei referentnu \u017eicu presvu\u010denu AgCl koja stvara elektri\u010dni potencijal. Ta referentna \u017eica u interakciji je s KCl elektrolitnom otopinom unutar sonde koja tada u malim koli\u010dinama te\u010de kroz spoj blizu vrha. Tok te otopine elektrolita okru\u017euje sondu i stvara medij za mjerenje. Staklo na vrhu sonde je polupropusno i vi\u0161eslojno. Kad se pravilno hidrira, tvori povr\u0161inu na kojoj je H+<\/sup>ili OH\u2013<\/sup>\u00a0ioni mogu biti u interakciji sa staklenim priborom dovode\u0107i elektri\u010dni krug do mjerne \u017eice sonde. \u0160to vi\u0161e iona u otopini djeluje na sondu, generira se ve\u0107i napon i pove\u0107ava se o\u010ditavanje napona. Kalibracijski puferi koriste se za standardizaciju izlaznog napona sonde za specifi\u010dne pH vrijednosti.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Znanost pH kalibracija<\/strong><\/h2>\n

\u010cesto umjeravanje ure\u0111aja jako je va\u017eno jer je svako mjerenje jednako dobro kao i standard na kojem se mjeri. Stanje pH metara mijenja se s vremenom. Naslage se mogu formirati na interaktivnoj staklenoj povr\u0161ini i, na primjer, ometati mjerenje, ili se koncentracija unutarnje otopine elektrolita mo\u017ee vremenom mijenjati, pogotovo ako sonda nije pravilno pohranjena tijekom razdoblja nekori\u0161tenja. \u010cak i samo staklo po\u010dinje degradirati \u200b\u200bkako se fini slojevi sonde tro\u0161e pri opetovanoj uporabi. U\u010destalo umjeravanje svje\u017eim puferima pru\u017ea standard koji osigurava da su i ure\u0111aj i njegov izlaz prema o\u010dekivanjima.<\/p>\n

Kalibracija op\u0107enito zapo\u010dinje s puferom pH 7. Kao neutralna vrijednost na skali, teoretski ne bi trebalo biti nabijenih iona u otopini, stvaraju\u0107i tako potencijal od 0 mV za ure\u0111aj. Svako odstupanje od te 0 mV vrijednosti naziva se pomak\u00a0(show with image of edge)<\/em>. Op\u0107enito, odstupanje od \u00b1 10 mV smatra se u granicama normale. Odstupanja ve\u0107a od \u00b1 20 mV nastaju kada su o\u010ditavanja obi\u010dno iza\u0161la izvan normalnog raspona, \u010demu \u010desto mogu biti uzrok smetnje na povr\u0161ini vrha sonde ili kontaminiranih pufera.<\/p>\n

Drugi i \/ ili tre\u0107i pufer dodaju se kalibraciji kako bi se stvorio nagib do naponskog odgovora ure\u0111aja\u00a0(show with image of edge)<\/em>. Svaka jedinica pH (primjerice 4 do 5) rezultira otprilike 59 mV naponskog potencijala u otopini, pri \u010demu su kiseli naboji pozitivni, a alkalni negativni. Odgovor va\u0161eg brojila na kalibracijski pufer 4 tada bi pao u poznati o\u010dekivani raspon napona koji ure\u0111aj mo\u017ee detektirati. Svako veliko odstupanje od tog raspona rezultira lo\u0161om vrijednosti nagiba. Nagib od \u00b1 5% do o\u010dekivane vrijednosti je idealan, dok se ne\u0161to izvan \u00b1 10% smatra izvan dosega.<\/p>\n

Pravilno razumijevanje i pomaka i nagiba omogu\u0107ava Vam da odredite da li Va\u0161 ure\u0111aj dobro radi ili vam jednostavno daje broj kao odgovor na va\u0161e trenutne pufere. To je tako\u0111er na\u010din provjere jesu li va\u0161i puferi u skladu sa standardom ili ih je potrebno zamijeniti, kao i treba li Va\u0161a sonda \u010di\u0161\u0107enje, kondicioniranje ili je po\u010dela dostizati granicu svog vijeka trajanja i treba je zamijeniti.<\/p>\n

Prvo pitanje koje ve\u0107ina laboratorija postavlja jest koja bi trebala biti u\u010destalost umjeravanja. Dnevno je obi\u010dno najbolja preporuka za normalno kori\u0161tenje. No, zbog u\u010destale uporabe, mo\u017ee biti potrebno vi\u0161e kalibracija dnevno. Povremena upotreba s razdobljima neuporabe treba zapo\u010deti s kalibracijom prije kori\u0161tenja ure\u0111aja za mjerenje.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Kako<\/span>\u00a0se<\/span>\u00a0brinuti<\/span>\u00a0za<\/span>\u00a0svoj<\/span>\u00a0pH<\/span>\u00a0mjera\u010d<\/span>\u00a0u<\/span>\u00a0vinskom<\/span>\u00a0laboratoriju<\/span><\/span><\/span><\/h3>\n

Jednom<\/span>\u00a0kada<\/span>\u00a0shvatite<\/span>\u00a0osnove<\/span>\u00a0rada<\/span>\u00a0Va\u0161eg<\/span>\u00a0pH<\/span>\u00a0mjera\u010da<\/span>,<\/span>\u00a0poma\u017ee<\/span>\u00a0vam<\/span>\u00a0razumjeti<\/span>\u00a0potrebe<\/span>\u00a0Va\u0161e<\/span>\u00a0pH<\/span>\u00a0sonde<\/span>\u00a0za<\/span>\u00a0pravilno<\/span>\u00a0\u010duvanje<\/span>\u00a0i<\/span>\u00a0njegu<\/span>.<\/span><\/span><\/span><\/p>\n

Budu\u0107i<\/span>\u00a0da<\/span> stakleni vrh zahtijeva <\/span>odgovaraju\u0107u <\/span>interaktivnu<\/span>\u00a0povr\u0161inu<\/span>\u00a0(<\/span>hidrataciju<\/span>)<\/span>,<\/span>\u00a0a<\/span>\u00a0i<\/span>\u00a0vrh<\/span>\u00a0i<\/span>\u00a0spoj<\/span>\u00a0pH-stakla <\/span>imaju <\/span>propusnost <\/span>koja <\/span>mo\u017ee <\/span>promijeniti <\/span>koncentraciju <\/span>interne <\/span>otopine <\/span>elektrolita<\/span>,<\/span>\u00a0klju\u010dno<\/span>\u00a0je<\/span>\u00a0pravilno<\/span>\u00a0\u010duvati<\/span>\u00a0mjera\u010d<\/span>\u00a0kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0osiguralo<\/span>\u00a0odr\u017eavanje<\/span>\u00a0ta<\/span> dva uvjeta <\/span>kako <\/span>je <\/span>predvi\u0111eno<\/span>.<\/span><\/span><\/span>\u00a0Uporaba<\/span>\u00a0otopine<\/span>\u00a0za<\/span>\u00a0pohranjivanje<\/span>\u00a0elektrode<\/span>\u00a0koja<\/span>\u00a0je<\/span>\u00a0izotoni\u010dna<\/span>\u00a0za<\/span>\u00a0unutarnji<\/span>\u00a0elektrolit<\/span>\u00a0idealna<\/span>\u00a0je<\/span>\u00a0(<\/span>slika<\/span>\u00a0i<\/span>\u00a0poveznica<\/span>\u00a0na<\/span>\u00a0proizvod<\/span>)<\/span>,<\/span>\u00a0a<\/span>\u00a0posebno<\/span>\u00a0preporu\u010dujemo<\/span>\u00a0uporabu<\/span>\u00a0\u010dahura<\/span>\u00a0za<\/span>\u00a0pohranjivanje<\/span>\u00a0(<\/span>slika<\/span>\u00a0i<\/span>\u00a0poveznica<\/span>\u00a0na<\/span>\u00a0proizvod<\/span>)<\/span>\u00a0kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0za\u0161titio<\/span>\u00a0delikatni<\/span>\u00a0stakleni<\/span>\u00a0softver<\/span>\u00a0te<\/span>\u00a0kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0sonda<\/span>\u00a0pravilno<\/span>\u00a0uronila<\/span>\u00a0u<\/span>\u00a0otopinu<\/span>\u00a0za<\/span>\u00a0pohranjivanje<\/span>\u00a0kada<\/span>\u00a0se<\/span>\u00a0ne<\/span>\u00a0koristi<\/span>.<\/span><\/span><\/span><\/p>\n

Redovita<\/span>\u00a0mjerenja<\/span>\u00a0u<\/span>\u00a0vinu<\/span>\u00a0mogu<\/span>\u00a0s<\/span>\u00a0vremenom<\/span>\u00a0nakupljati<\/span>\u00a0naslage<\/span>\u00a0na<\/span>\u00a0pH-staklu<\/span>, <\/span>pa <\/span>se <\/span>obi\u010dno <\/span>preporu\u010da <\/span>tjedno <\/span>ili <\/span>dvotjedno <\/span>\u010di\u0161\u0107enje<\/span>. <\/span><\/span><\/span>Instrument<\/span>\u00a0Hanna<\/span>\u00a0nudi<\/span>\u00a0rje\u0161enje<\/span>\u00a0za<\/span>\u00a0\u010di\u0161\u0107enje<\/span>\u00a0koje<\/span>\u00a0je<\/span>\u00a0posebno<\/span>\u00a0formulirano<\/span>\u00a0za<\/span>\u00a0uklanjanje<\/span>\u00a0naslaga<\/span>\u00a0vina<\/span>\u00a0(<\/span>proizvod<\/span>\u00a0i<\/span>\u00a0poveznica<\/span>)<\/span>.<\/span><\/span><\/span>\u00a0Potrebna<\/span>\u00a0je<\/span>\u00a0jednostavna<\/span>\u00a0uroniti<\/span>\u00a0sondu<\/span>\u00a0u<\/span>\u00a0otopinu<\/span>\u00a0za<\/span>\u00a0\u010di\u0161\u0107enje<\/span>\u00a020<\/span>\u00a0minuta<\/span>,<\/span>\u00a0nakon<\/span>\u00a0\u010dega<\/span>\u00a0slijedi<\/span>\u00a0temeljito<\/span>\u00a0ispiranje<\/span>\u00a0s<\/span>\u00a0DI<\/span>\u00a0ili<\/span>\u00a0destiliranom<\/span>\u00a0vodom<\/span>,<\/span>\u00a0te<\/span>\u00a0povratak<\/span>\u00a0u<\/span>\u00a0otopinu<\/span>\u00a0za<\/span>\u00a0skladi\u0161tenje<\/span>\u00a030<\/span>\u00a0minuta<\/span>\u00a0kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0pravilno<\/span>\u00a0obnovila<\/span>\u00a0staklena<\/span>\u00a0povr\u0161ina<\/span>\u00a0radi<\/span>\u00a0mjerenja<\/span>.<\/span><\/span><\/span><\/p>\n

Ukoliko<\/span>\u00a0se<\/span>\u00a0na<\/span>\u00a0metru formiraju boje <\/span><\/span>od <\/span>pove\u0107ane <\/span>izlo\u017eenosti<\/span>\u00a0crvenim<\/span>\u00a0vinima<\/span>,<\/span>\u00a0dostupna<\/span>\u00a0je<\/span>\u00a0i<\/span>\u00a0zasebna<\/span>\u00a0otopina<\/span>\u00a0za<\/span>\u00a0odstranjivanje<\/span>\u00a0mrlja<\/span>\u00a0(<\/span>proizvod<\/span>\u00a0i<\/span>\u00a0poveznica<\/span>)<\/span>.<\/span><\/span><\/span>\u00a0Opet slijedi<\/span>, <\/span>kratko <\/span>\u00a0ispiranje <\/span>u <\/span>otopini <\/span>nakon<\/span>\u00a0kojeg<\/span>\u00a0slijedi<\/span>\u00a0ispiranje<\/span>\u00a0DI<\/span>\u00a0vodom<\/span>\u00a0i<\/span>\u00a030<\/span>\u00a0minuta<\/span>\u00a0skladi\u0161tenja<\/span>\u00a0za<\/span>\u00a0rekondicioniranje<\/span>.<\/span><\/span><\/span><\/p>\n

Interna<\/span>\u00a0otopina<\/span>\u00a0za<\/span>\u00a0punjenje<\/span>\u00a0elektrolita<\/span>\u00a0u<\/span>\u00a0sondi<\/span>\u00a0treba<\/span>\u00a0se<\/span>\u00a0mijenjati<\/span>\u00a0svaki<\/span>\u00a0mjesec<\/span>\u00a0ili<\/span>\u00a0dva<\/span>\u00a0na<\/span>\u00a0temelju<\/span>\u00a0u\u010destalosti<\/span>\u00a0uporabe<\/span>\u00a0kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0osiguralo<\/span>\u00a0pravilno<\/span>\u00a0odr\u017eavanje<\/span>\u00a0koncentracije<\/span>.<\/span><\/span><\/span>\u00a0Da<\/span>\u00a0bi<\/span>\u00a0do\u0161lo<\/span>\u00a0do<\/span>\u00a0pravilnog<\/span>\u00a0protoka<\/span>,<\/span>\u00a0prije<\/span>\u00a0mjerenja<\/span>\u00a0morate<\/span>\u00a0otpustiti<\/span>\u00a0ili<\/span>\u00a0ukloniti<\/span>\u00a0poklopac<\/span>\u00a0za<\/span>\u00a0punjenje<\/span>\u00a0elektrolita<\/span>\u00a0na<\/span>\u00a0sondi<\/span>,<\/span>\u00a0ili<\/span> on sprje\u010dava <\/span>protok <\/span>elektrolita <\/span>kroz <\/span>spoj <\/span>sonde <\/span>izazivanjem<\/span>\u00a0negativnog<\/span>\u00a0tlaka<\/span>\u00a0(<\/span>poput<\/span>\u00a0stavljanja<\/span>\u00a0prsta<\/span>\u00a0na<\/span>\u00a0vrh<\/span>\u00a0slame<\/span>)<\/span>.<\/span><\/span><\/span>\u00a0Zna\u010dajka<\/span>\u00a0koju<\/span>\u00a0treba<\/span>\u00a0istaknuti<\/span> u vezi s brigom o va\u0161oj sondi je sustav za sprje\u010davanje za\u010depljenja. <\/span><\/span>Ako<\/span>\u00a0lo\u0161<\/span>\u00a0odziv<\/span>\u00a0mjera\u010da<\/span>\u00a0postane<\/span>\u00a0problem<\/span>,<\/span>\u00a0za\u010depljen<\/span> spoja mo\u017ee <\/span>biti problem<\/span>. <\/span><\/span><\/span>Sonda<\/span>\u00a0HI10480<\/span>\u00a0dolazi<\/span>\u00a0s teflonskim rukavcem <\/span>kako<\/span>\u00a0bi<\/span>\u00a0se<\/span>\u00a0sprje\u010dilo<\/span>\u00a0ne<\/span>\u00a0samo<\/span> za\u010depljenje, <\/span>ve\u0107 <\/span>i\u00a0 njihovo lako uklanjanje pomicanjem \u010dahure prema sondi i omogu\u0107avanjem lakog punjenja otopine za punjenje kroz spoj, uklanjaju\u0107i sva za\u010depljenja. Dovoljno je ponovno nataknuti \u010dahuru na spoj kada se za\u010depljenje o\u010disti.<\/span><\/span><\/span><\/p>\n

Posljednji<\/span>\u00a0savjet<\/span>\u00a0za<\/span>\u00a0kvalitetna<\/span>\u00a0mjerenja<\/span>\u00a0pH<\/span>\u00a0i<\/span>\u00a0njegu<\/span>\u00a0je<\/span>\u00a0na<\/span>\u00a0tehnici<\/span>.<\/span><\/span><\/span>\u00a0Najbolja<\/span>\u00a0metoda<\/span>\u00a0je<\/span>\u00a0da<\/span>\u00a0uzmete<\/span>\u00a0sondu<\/span>\u00a0iz<\/span>\u00a0otopine<\/span>\u00a0za<\/span>\u00a0\u010duvanje<\/span>,<\/span>\u00a0isperite<\/span>\u00a0je<\/span>\u00a0pomo\u0107u<\/span>\u00a0DI<\/span>\u00a0ili<\/span>\u00a0destilirane<\/span>\u00a0vode<\/span>,<\/span>\u00a0a<\/span>\u00a0zatim<\/span>\u00a0je<\/span>\u00a0isperite<\/span>\u00a0malom<\/span>\u00a0koli\u010dinom<\/span>\u00a0uzorka<\/span>\u00a0koji<\/span>\u00a0\u0107ete<\/span>\u00a0izmjeriti<\/span>\u00a0kako<\/span>\u00a0biste<\/span>\u00a0uklonili<\/span>\u00a0otopinu<\/span>\u00a0za<\/span>\u00a0\u010duvanje, kao i <\/span>ispiranje <\/span>vodom<\/span>. <\/span><\/span><\/span>Ako<\/span>\u00a0morate<\/span>\u00a0osu\u0161iti<\/span>\u00a0sondu<\/span>\u00a0izme\u0111u<\/span>\u00a0uzoraka<\/span>,<\/span>\u00a0uvijek<\/span>\u00a0to<\/span>\u00a0u\u010dinite<\/span>\u00a0nje\u017enim<\/span>\u00a0mije\u0161anjem<\/span>\u00a0s<\/span>\u00a0Kimwipeom<\/span>\u00a0ili<\/span>\u00a0drugim<\/span>\u00a0prikladnim<\/span>\u00a0mekim<\/span>\u00a0tkivom<\/span>.<\/span><\/span><\/span>\u00a0Nikada<\/span>\u00a0nemojte<\/span>\u00a0u<\/span>\u00a0potpunosti<\/span>\u00a0obrisati<\/span>\u00a0vrh<\/span>\u00a0sonde<\/span>\u00a0jer<\/span>\u00a0\u0107ete<\/span>\u00a0prekinuti<\/span>\u00a0hidriranu<\/span>\u00a0povr\u0161inu<\/span>\u00a0sonde<\/span>\u00a0radi<\/span>\u00a0odgovaraju\u0107ih<\/span>\u00a0mjerenja<\/span>,<\/span>\u00a0riskirati<\/span>\u00a0o\u0161te\u0107ivanje<\/span>\u00a0stakla<\/span>\u00a0ili<\/span>\u00a0barem<\/span>\u00a0mnogo<\/span>\u00a0br\u017ee<\/span>\u00a0istro\u0161iti<\/span>\u00a0staklo<\/span>,<\/span>\u00a0skra\u0107uju\u0107i<\/span>\u00a0koristan<\/span>\u00a0vijek<\/span>\u00a0trajanja<\/span>.<\/span><\/span><\/span><\/p>\n

Dobro<\/span>\u00a0odr\u017eavani<\/span>\u00a0pH<\/span>\u00a0mjera\u010d<\/span>\u00a0dat<\/span>\u00a0\u0107e<\/span>\u00a0vam<\/span>\u00a0to\u010dna<\/span>\u00a0mjerenja<\/span>\u00a0koja<\/span>\u00a0mo\u017eete<\/span>\u00a0koristiti<\/span>\u00a0za<\/span>\u00a0Va\u0161e<\/span>\u00a0klju\u010dne<\/span>\u00a0odluke<\/span>\u00a0o<\/span>\u00a0vinarstvu<\/span>,<\/span>\u00a0kao<\/span>\u00a0\u0161to<\/span>\u00a0su<\/span>\u00a0dodaci<\/span>\u00a0SO2<\/span>\u00a0ili<\/span>\u00a0kiseline<\/span>.<\/span><\/span><\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Opcije pH Testiranja<\/strong><\/p>\n

Mnogo je opcija pri odabiru savr\u0161enog rje\u0161enja za pH testiranje. Jednostavno i prijenosno rje\u0161enje kao\u00a0HI981033 pH tester za vino<\/a>\u00a0koristi specijaliziranu elektrodu za vino, ali u d\u017eepnoj varijanti ure\u0111aja. Dolazi s otopinama i dodacima potrebnim za po\u010detak testiranja. Dugi \u017eivotni vijek baterija pru\u017eit \u0107e neprekidnu upotrebu do 1000 sati, a tester \u0107e vas upozoriti treptavom ikonom baterije ako Vam se baterija po\u010dne prazniti.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Rje\u0161enje za kori\u0161tenje u laboratoriju\u00a0HI2020W edge\u00ae pH metar za vino (komplet)\u00a0je svestran pH mjera\u010d s mogu\u0107no\u0161\u0107u nadogradnje u Profesionalni vinarski komplet uz dodatak elektroda za testiranje dodatnih parametara (vodljivost i otopljeni kisik). Uklju\u010dene su i otopine za kalibraciju, \u010di\u0161\u0107enje i skladi\u0161tenje kako bi se Va\u0161a elektroda i mjera\u010d zadr\u017eali u tip top formi.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Na\u0161a\u00a0HI10482 HALO\u00ae be\u017ei\u010dna pH sonda za vino<\/a>\u00a0je savr\u0161ena prijenosna opcija testiranja pH, bez ugro\u017eavanja to\u010dnosti. Ovaj\u00a0Bluetooth<\/span>\u00ae<\/sup>\u00a0Pametna tehnologija integrirana je u vinsku elektrodu i va\u0161 pametni ure\u0111aj mo\u017ee pretvoriti u pH metar. Aplikacija je besplatna za preuzimanje i omogu\u0107uje vam prijavu i dijeljenje podataka, a tu su i zgodne funkcije pomo\u0107i i vodi\u010da.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Pozivom Hanna Instruments\u2026<\/h2>\n

\u2026 mo\u017ee vam pomo\u0107i da prona\u0111ete pravi pH metar kako biste udovoljili svojim potrebama proizvodnje vina. Kontaktirajte nas koriste\u0107i jedan od kanala u nastavku!<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

pH meter je naj\u010de\u0161\u0107e jedan od najnerazumijevanijih dijelova opreme u vinarskom laboratoriju. Ima tendenciju da […]<\/p>\n","protected":false},"author":14,"featured_media":4906,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[563],"tags":[93,148,116],"class_list":["post-154993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pica","tag-ph-hr","tag-vino-hr","tag-wine"],"yoast_head":"\nPobolj\u0161anje kvalitete vina \u2013 osnove razumijevanja rada pH metra - Hanna Instruments Hrvatska<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.hannaservice.eu\/hr\/poboljsanje-kvalitete-vina-osnove-razumijevanja-rada-ph-metra\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pobolj\u0161anje kvalitete vina \u2013 osnove razumijevanja rada pH metra - Hanna Instruments Hrvatska\" \/>\n<meta property=\"og:description\" content=\"pH meter je naj\u010de\u0161\u0107e jedan od najnerazumijevanijih dijelova opreme u vinarskom laboratoriju. 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