Litaba - Molao-motheo le Mosebetsi oa Bahlahlobisisi ba Mocheso bakeng sa Limithara tsa pH le Limithara tsa Khokahano

https://www.boquinstruments.com/ph8012-industrial-waste-water-ph-sensor-product/

pH metresleconductivity metresli sebelisoa haholo lisebelisoa tsa tlhahlobo lipatlisisong tsa mahlale, tlhahlobo ea tikoloho, le lits'ebetso tsa tlhahiso ea indasteri. Ts'ebetso ea bona e nepahetseng le netefatso ea metroloji li itšetlehile haholo ka litharollo tsa litšupiso tse sebelisitsoeng. Boleng ba pH le conductivity ea motlakase ea litharollo tsena li susumetsoa haholo ke ho fapana ha mocheso. Ha mocheso o fetoha, li-parameter ka bobeli li bontša likarabo tse fapaneng, tse ka amang ho nepahala ha tekanyo. Nakong ea netefatso ea metrological, ho 'nile ha hlokomeloa hore tšebeliso e sa nepahalang ea li- compensator tsa mocheso lisebelisoa tsena li lebisa ho kheloha ho hoholo liphethong tsa tekanyo. Ho feta moo, basebelisi ba bang ha ba utloisise melao-motheo ea matšeliso a mocheso kapa ba hlōleha ho lemoha phapang pakeng tsa pH le conductivity metres, e leng se bakang tšebeliso e fosahetseng le data e sa tšepahaleng. Ka hona, kutloisiso e hlakileng ea melao-motheo le phapang pakeng tsa mekhoa ea matšeliso ea mocheso ea lisebelisoa tsena tse peli ke ea bohlokoa bakeng sa ho netefatsa ho nepahala ha tekanyo.

I. Melao-motheo le Mesebetsi ea Bahlaseli ba Mocheso

1. Matšeliso a Mocheso ka Limithara tsa pH
Tekanyetsong le ts'ebelisong e sebetsang ea pH metres, litekanyo tse sa nepahalang hangata li hlaha ts'ebelisong e fosahetseng ea compensator ea mocheso. Mosebetsi o ka sehloohong oa compensator ea mocheso oa mithara oa pH ke ho lokisa coefficient ea karabo ea elektrode ho latela equation ea Nernst, e leng ho nolofalletsang ho tseba hantle pH ea tharollo mochesong oa hajoale.

Phapang e ka 'nang ea e-ba teng (ka mV) e hlahisoang ke mokhoa oa ho lekanya oa electrode e lula e le teng ho sa tsotellehe mocheso; leha ho le joalo, kutloisiso ea karabo ea pH-ke hore, phetoho ea motlakase ho unit pH-e fapana le mocheso. The Nernst equation e hlalosa kamano ena, e bonts'a hore moepa oa karabelo ea li-electrode o eketseha ka mocheso o nyolohang. Ha mocheso oa compensator o sebetsa, sesebelisoa se fetola ntlha ea phetoho ka tsela e nepahetseng, ho netefatsa hore boleng ba pH bo bontšitsoeng bo lumellana le mocheso oa sebele oa tharollo. Ntle le matšeliso a loketseng a mocheso, pH e lekantsoeng e ne e tla bontša mocheso o lekantsoeng ho fapana le sampole ea mocheso, e leng se lebisang liphosong. Kahoo, matšeliso a mocheso a lumella litekanyo tse tšepahalang tsa pH ho pholletsa le maemo a fapaneng a mocheso.

PH Analyzer ea metsi a litšila a indasteri

2. Matšeliso a Mocheso ho Conductivity Meters
Ts'ebetso ea motlakase e itšetlehile ka tekanyo ea ionization ea electrolyte le ho tsamaea ha li-ion tharollo, tseo ka bobeli li itšetlehileng ka mocheso. Ha mocheso o ntse o eketseha, ho tsamaea ha ionic ho eketseha, ho fella ka litekanyetso tse phahameng tsa conductivity; ka lehlakoreng le leng, mocheso o tlase o fokotsa conductivity. Ka lebaka la ho itšetleha hona ho matla, papiso e tobileng ea litekanyo tsa conductivity tse nkiloeng ka mocheso o fapaneng ha o na moelelo ntle le maemo.

Ho etsa bonnete ba ho bapisa, 'malo oa conductivity hangata o lebisitsoe ho mocheso o tloaelehileng-hangata 25 °C. Haeba compensator mocheso o holofetse, sesebelisoa se tlaleha conductivity ka mocheso sebele tharollo. Maemong a joalo, ho lokisoa ka letsoho ho sebelisoa coefficient e loketseng ea mocheso (β) e tlameha ho sebelisoa ho fetolela sephetho ho mocheso oa litšupiso. Leha ho le joalo, ha compensator ea mocheso e lumelloa, sesebelisoa se iketsetsa phetoho ena ho latela coefficient e boletsoeng esale pele kapa e ka fetoloang ke mosebedisi. Sena se nolofalletsa ho bapisa ka mokhoa o tsitsitseng ho pholletsa le lisampole le ho tšehetsa ho lumellana le litekanyetso tsa taolo tse khethehileng tsa indasteri. Ka lebaka la bohlokoa ba eona, limithara tsa sejoale-joale tsa conductivity hoo e ka bang hohle li kenyelletsa ts'ebetso ea matšeliso a mocheso, 'me mekhoa ea netefatso ea metrological e lokela ho kenyelletsa tlhahlobo ea tšobotsi ena.

Sensor ea ho tsamaisa metsi a litšila tsa indasteri

II. Mehopolo ea Ts'ebetso bakeng sa pH le Conductivity Meter ka Matšeliso a Mocheso

1. Litaelo tsa ho Sebelisa Litlhapi tsa Mocheso oa Metha ea pH
Kaha lets'oao la mV le lekantsoeng ha le fapane le mocheso, mosebetsi oa compensator mocheso ke ho fetola moepa (conversion coefficient K) ea karabo ea elektrode ho bapisa mocheso oa hajoale. Ka hona, ho bohlokoa ho etsa bonnete ba hore mocheso oa litharollo tsa buffer tse sebelisoang nakong ea ho lekanya o tsamaellana le oa sampole e lekantsoeng, kapa ho sebelisoa matšeliso a nepahetseng a mocheso. Ho hloleha ho etsa joalo ho ka baka liphoso tse hlophisitsoeng, haholo ha ho metha lisampole hole le mocheso oa ho lekanya.

2. Litaelo tsa ho Sebelisa li-Comductivity Meter Temperature Compensation
Coefficient ea tokiso ea mocheso (β) e bapala karolo ea bohlokoa ho fetoleng conductivity e lekantsoeng ho mocheso oa referense. Litharollo tse fapaneng li bonts'a boleng bo fapaneng ba β-ka mohlala, metsi a tlhaho hangata a na le β ea hoo e ka bang 2.0–2.5 %/°C, ha li-acid tse matla kapa metheo e ka fapana haholo. Lisebelisoa tse nang le li-coefficients tse tsitsitseng tsa tokiso (mohlala, 2.0 %/°C) li ka hlahisa liphoso ha li metha litharollo tse sa tloaelehang. Bakeng sa lits'ebetso tse phahameng ka ho fetisisa, haeba coefficient e hahiloeng ka hare e ke ke ea fetoloa hore e lumellane le β ea sebele ea tharollo, ho kgothaletswa ho thibela mosebetsi oa matšeliso a mocheso. Ho e-na le hoo, lekanya mocheso oa tharollo ka nepo 'me u etse tokiso ka letsoho, kapa u boloke sampole e le 25 °C hantle nakong ea tekanyo ho felisa tlhoko ea matšeliso.

III. Mekhoa e potlakileng ea ho Hlahlobisisa bakeng sa ho Khetholla ho se sebetse hantle ho Li-Compensation tsa Mocheso

1. Mokhoa oa ho Hlahloba ka Potlako bakeng sa Li-Compensators tsa Mocheso oa Metha ea pH
Taba ea pele, lekanya pH mithara u sebelisa litharollo tse peli tse tloaelehileng tsa buffer ho theha moepa o nepahetseng. Ebe, lekanya tharollo e tloaelehileng ea boraro e tiisitsoeng tlas'a maemo a lefshoang (ka matšeliso a mocheso a lumelletsoeng). Bapisa 'malo o fumanoeng le boleng ba pH bo lebelletsoeng mochesong oa' nete oa tharollo, joalo ka ha ho boletsoe ho "Verification Regulation for pH Meters." Haeba ho kheloha ho feta phoso e kholo e lumelletsoeng bakeng sa sehlopha sa ho nepahala ha sesebelisoa, compensator ea mocheso e ka 'na ea se ke ea sebetsa hantle' me e hloka tlhahlobo ea setsebi.

2. Quick Check Method bakeng sa Conductivity Meter Temperature Compensators
Lekanya conductivity le mocheso oa tharollo e tsitsitseng ka ho sebelisa meter conductivity le matšeliso a mocheso a nolofalitsoeng. Rekota boleng ba conductivity bo bontšitsoeng. Ka mor'a moo, thibela compensator mocheso 'me u tlalehe conductivity e tala ka mocheso oa sebele. U sebelisa motsoako oa mocheso o tsejoang oa tharollo, bala hore na ho na le conductivity e lebeletsoeng ka mocheso oa boitsebiso (25 °C). Bapisa boleng bo baliloeng le puseletso ea seletsa. Phapang e kholo e bonts'a phoso e ka bang teng ho algorithm kapa sensor ea mocheso, e hlokang ho netefatsoa ka laboratori ea metrology e netefalitsoeng.

Qetellong, matšeliso a sebetsang ho li-pH metres le conductivity metres li sebeletsa merero e fapaneng haholo. Ho limithara tsa pH, matšeliso a lokisa maikutlo a karabelo ea eleketrode ho bonahatsa litlamorao tsa mocheso oa nako ea 'nete ho latela palo ea Nernst. Ho limithara tsa conductivity, matšeliso a etsa hore ho baloe ho tloaelehile ho mocheso oa litšupiso ho thusa ho bapisa mehlala e fapaneng. Ho ferekanya mekhoa ena ho ka lebisa ho litlhaloso tse fosahetseng le boleng ba data bo senyehileng. Kutloisiso e phethahetseng ea melao-motheo ea bona e netefatsang litekanyo tse nepahetseng le tse tšepahalang. Ho feta moo, mekhoa ea ho hlahloba e boletsoeng ka holimo e lumella basebelisi ho etsa litlhahlobo tsa pele tsa ts'ebetso ea compensator. Haeba ho ka lemohuoa liphoso leha e le life, ho romelloa ka potlako sesebelisoa bakeng sa netefatso e hlophisitsoeng ea metrological ho eletsoa ka matla.

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Nako ea poso: Dec-10-2025