Dab tsi yog qhov tsis siv neeg calibration ntawm pH meters?
Lub pH meter tau txais kev ntsuas ntsuas thiab tsuas yog siv tau rau microcomputers lossis computer nti hom pH ntsuas. Hom pH meter no muaj cov ntaub ntawv ntau yam kev daws teeb meem thiab cov txheej txheem ua haujlwm rau hauv cov tub ntxhais
Cov ntsiav tshuaj, yog li tsis tas yuav kuaj xyuas tus nqi pH ntawm cov tshuaj tsis haum. Yog tias nruab nrog lub ntsuas kub ntsuas, tsis tas yuav kho qhov ntsuas kub, raws li cov qauv kev daws teeb meem
Xaiv los ua ib qho taw tes calibration, ob lub ntsiab lus calibration, los yog peb taw tes huab calibration rau kev ntsuam xyuas qhov tseeb (nias lub CAL yuam sij ib zaug, ob zaug, los yog peb zaug), thiab lub ntsuas yuav cia li tso saib calibration.
Xaus cim. Peb taw tes calibration yog ib yam ntxwv ntawm hom pH meter. Nws muab faib ua kev kho pH 7.00 (los yog pH 6.86), pH 4.00 los yog pH 10.0l (los yog pH 9.18)
Peb cov ntsiab lus, kev sim yog qhov tseeb dua thoob plaws tag nrho pH ntau yam. Thaum siv cov twj paj nruag zoo li no, nws yog ib qho tseem ceeb kom ua tib zoo xyuas peb lub pH buffers uas tau tsim nyob rau hauv pH meter.
Cov kev daws teeb meem tshwj xeeb, xws li pH 6.86 lossis pH 7.00, pH 9.18 lossis pH 0.01, thiab xaiv cov kev daws teeb meem tsis raug. Qee lub computer
Lub pH meter tuaj yeem teeb tsa nws tus kheej pH tsis daws teeb meem, tab sis nws yuav tsum tau teeb tsa kom raug ua ntej. Txwv tsis pub, lub khoos phis tawj tsis tuaj yeem paub txog ob qhov kev daws teeb meem zoo sib xws, thiab kev ntsuas qhov yuam kev tuaj yeem tshwm sim.
Kev ceev faj rau portable pH meters
(1) Yog tias lub sijhawm PH portable tsis siv sijhawm ntev, thov qhib lub nraub qaum ntawm lub ntsuas, tshem lub roj teeb, thiab tua lub cuab yeej ua ntej hloov lub roj teeb.
(2) Yog tias txoj kab nqes ntawm cov electrode qis me ntsis tom qab siv mus ntev, qhov qis kawg ntawm cov electrode tuaj yeem soaked hauv 4% HF (hydrofluoric acid) rau 3-5 vib nas this, ntxuav nrog dej distilled, thiab tom qab ntawd soaked. hauv 0.1mol/L hydrochloric acid daws kom rov ua dua tshiab.
(3) Yog hais tias ua tau, tsis tu ncua export thiab backup cov ntaub ntawv xeem los ntawm pH meter.
