Vim li cas tus nqi tso tawm los ntawm online pH meter transmitter hloov pauv ntau heev?
Tus nqi tso tawm ntawm online pH meter transmitter tsis ruaj khov thiab hloov pauv ntau dhau. Thaum nws yog thawj zaug siv, nws malfunctioned 2 teev tom qab cov txheej txheem daws tau calibrated. Qhov tshwm sim tshwj xeeb yog: PH tus nqi ntawm qhov ntsuas nruab nrab yog nyob nruab nrab ntawm 6.8 thiab 7.2. Thaum tus nqi PH yog 6.8, lub transmitter tso saib tus nqi hloov ntawm 5.9. Thaum tus nqi PH yog 7.2, lub transmitter tso saib tus nqi txo ntawm 11. Kev tu siab maj mam txo qis mus rau 10. Qhov tshwm sim no tsis tshwm sim tom qab hloov lub transmitter tshiab.
Qhov teeb meem ntawm qhov hloov pauv loj hauv qhov pom muaj txiaj ntsig ntawm online pH meter transmitter yog qhov tsis tshua muaj. Tsis muaj ntau yam teeb meem nrog cov pH ntsuas txawv teb chaws, thiab qhov teeb meem no tshwm sim qee zaus. Xav saib seb qhov kev sojntsuam puas yuav tsum tau hloov? Hloov qhov kev sojntsuam nrog ib qho tshiab thiab xyuas qhov impedance. Tshawb xyuas tus choj ntsev yam tsis hloov qhov kev sojntsuam. Thaum kawg, seb puas yuav xav txog kev hloov qhov kev sojntsuam. Cov xaim yuav xoob, nruj cov terminals.
Lus Cim: Salt choj. Tom qab cov ntaub ntawv siv hluav taws xob tau muab tso rau hauv cov tshuaj hauv kev sim, ib qho me me ntawm KCl cov tshuaj xau tawm los ntawm cov porous ceramic. Nws txuas nrog sab hauv mus rau qhov siv hluav taws xob siv hluav taws xob thiab sab nraud txuas nrog kev daws teeb meem hauv kev sim, uas ua raws li tus choj rau hluav taws xob tiv tauj. Nws yog hu ua tus choj ntsev. . Kev xau ceev ntawm E ntsev choj tov muaj kev cuam tshuam zoo rau cov kua dej sib txuas: qhov xau ceev nrawm dhau, ua rau cov kua dej sib txuas tsis ruaj khov; thiab yog tias lub siab ntawm cov ntsuas ntsuas tau nce, qhov xau ceev yuav qeeb dua, thiab cov tshuaj ntsuas yuav nkag mus rau hauv cov khoom siv electrode, ua rau acidometer malfunction.
Ntawm pH 6.8 ~ 7.2, tus naj npawb ntawm hydrogen ions hloov nyob ib ncig ntawm 4, uas tsis muaj zog heev thaum hloov mus rau mv teeb liab. Yog hais tias lub amplifier amplifies raws li qhov piv txwv no thiab hloov mus rau ib tug txawv tsis, nws tej zaum yuav qhia tau hais tias -2 los yog 16.
Ua ke nrog qhov tseeb tias qhov txhaum ploj tom qab koj hloov lub transmitter, kuv ntseeg tias nws yog ib qho xwm txheej. Yog tias koj tsis tau hloov qhov tsis nyob rau lub sijhawm ntawd, pH tej zaum yuav dhia mus. Nws tsuas yog coincidence xwb. 7.2 tsis? Feem ntau, 4.0, 6.86 (los yog 7. txawv ntau dua 2.0.
Piv txwv tias pH ntawm cov tshuaj tsis hloov pauv, feem ntau yog vim li cas vim li cas cov txiaj ntsig ntawm online pH meter transmitter fluctuates heev thiab kev nyeem ntawv feem ntau dhia yog:
1. Kev siv av tsis zoo, suav nrog cov kav dej ntawm lub transmitter thiab electrode
Qee zaum yog tias koj co lub cable tshwj xeeb nrog koj txhais tes lossis kov lub plhaub hlau ntawm 253, pH nyeem ntawv yuav hloov pauv zoo heev;
&2. Daim ntawv electrode tau teeb tsa tsis raug, uas zoo sib xws nrog qhov tshwm sim koj tau hais 7
asymmetrical asymmetrical kev twb kev txuas thiab symmetrical symmetrical kev twb kev txuas;
3. Qhov nqes hav ntawm qhov kawg calibration yog tsawg dhau.
