Dissolved oxygen meter electrode tu thiab tu txoj kev
Thaum siv, tom qab lub electrode ntawm lub tshuab hluav taws xob hauv online tau txuas nrog lub ntsuas hluav taws xob thiab siv hluav taws xob, polarization yog nqa tawm. Txhawm rau kom sib npaug ntawm cov tshuaj hauv cov electrode, txo qis cov pa oxygen tam sim no thiab ua kom cov electrode ruaj khov. Thaum pib, lub electrode tam sim no kuj loj thiab txo qis exponentially. Nws feem ntau ncav cuag lub xeev ruaj khov tom qab 3 teev. Lub sijhawm no, cov ntaub ntawv tso tawm yuav maj mam txo kom txog thaum ruaj khov. Calibration tuaj yeem ua tau.
Yog tias muaj hluav taws xob tsis tu ncua rau ntau tshaj 15 feeb, yuav tsum tau repolarization. Yog tias lub sijhawm hluav taws xob tawm tsis ntev, lub sijhawm polarization yuav luv dua thiab lub kaw lus yuav ruaj khov sai dua.
Kev kho ntawm online yaj oxygen meter electrodes:
1. Lub ntsuas pa oxygen electrode yuav tsum tau ntxuav ib zaug ib lub lim tiam. Yog tias muaj cov kab mob sib kis ntawm lub diaphragm, nws yuav ua rau kev ntsuas yuam kev. Ceev faj tsis txhob ua kom lub diaphragm puas thaum ntxuav. Yaug cov pa oxygen meter electrode hauv dej huv. Yog tias cov av tsis tuaj yeem ntxuav tau, so kom zoo nrog cov ntaub mos muag lossis paj rwb.
2. Lub xoom taw tes thiab ntau yam ntawm cov pa oxygen meter electrode yuav tsum tau recalibrated txhua lub hlis.
3. Lub ntsuas pa oxygen electrode yog regenerated kwv yees li ib xyoos ib zaug. Thaum ntsuas qhov ntsuas tsis tuaj yeem hloov kho, cov pa oxygen electrode yuav tsum tau rov tsim dua. Electrode regeneration muaj xws li hloov cov electrolyte sab hauv, hloov lub diaphragm, thiab ntxuav cov nyiaj electrode. Yog tias pom oxidation ntawm cov nyiaj electrode, polish nws nrog cov ntawv xuab zeb zoo.
4. Yog tias pom cov pa hluav taws xob ntawm cov pa oxygen meter electrode pom thaum siv, cov electrolyte yuav tsum tau hloov.
Kev siv lub ntsuas ntsuas cov pa oxygen tom qab yuav nws tsis yog tsuas yog siv nws kom raug, tab sis kuj tswj nws. Ntau tus neeg siv khoom muaj teeb meem tom qab yuav nws ua ntej siv nws. Feem ntau ntawm lawv yog tshwm sim los ntawm cov kws kho mob tsoo lub electrode thaum noj nws. Lub taub hau zaj duab xis tawg, uas yuav ua rau muaj kev sib tham ntau dhau thiab kev hloov pauv ntawm cov neeg siv khoom thiab cov neeg muag khoom. Yog li ntawd, ua ntu zus thiab ceev faj thaum siv nws yuav zam ntau yam teeb meem tsis tsim nyog.
Dissolved oxygen meter ceev faj:
1. Calibrate ib zaug ib hnub ua ntej siv, siv cov dej-saturated gas method. Txawm hais tias lub tshuab raug kaw tsis pub dhau ib hnub, tsis tas yuav calibrate dua;
2. Qhov kub thiab txias thaum lub sij hawm ntsuas thiab ntsuas yuav tsum tsis txhob sib txawv heev, thiab yuav tsum tsis txhob tshaj +-5;
3. Yog tias qhov kev nyeem ntawv tsis zoo, yuav tsum tau hloov pauv cov pa oxygen membrane (piv txwv li, kev nyeem ntawv tsis ruaj khov lossis tsis ruaj khov los ntawm siab mus rau qis tom qab tig lub tshuab);
4. Thaum hloov cov pa oxygen membrane, yuav tsum tsis txhob muaj npuas nyob rau hauv lub electrolyte, daim nyias nyias yuav tsum tsis txhob wrinkled, thiab cov membrane tshaj yuav tsum tau txiav tawm;
5. Cov kuab tshuaj yaj yeeb yuav tsum tau hloov thaum lub sensor electrolyte dries tawm;
6. Thaum hloov cov pa oxygen membrane, siv deionized los yog distilled dej los ntxuav tawm cov qub electrolyte, ntxiv 2-3 tee ntawm electrolyte tshiab thiab co kom qhuav. Ordinary industrial dissolved oxygen meters yuav tsum tau ntim nrog cov electrolyte tshiab kom txog rau thaum cov kua nto bulges, thiab cov yaj yaj yeeb yaj kiab yuav tsum tau nias rau yam tsis muaj npuas; ib nrab tus nqi ntawm cov electrolyte tshiab yuav tsum tau txhaj rau hauv lub npog zaj duab xis thiab nruj;
7. Lub tshuab ntsuas hluav taws xob hauv online tuaj yeem siv tau tom qab hloov lub npog npog. Tom qab hloov cov daim nyias nyias, nws yuav tsum tau muab tso rau ib hmos kom cov membrane rov qab ua kom tiav;
8. Yog hais tias qhov saum npoo ntawm cov kua nplaum uas muaj cov pa oxygen tsis huv, nws yuav tsum tau muab ntxuav kom zoo kom tsis txhob ua rau daim nyias nyias;
9. YSI tau pom zoo kom hloov cov pa oxygen membrane txhua txhua 2-4 lub lis piam, tab sis yog tias cov dej tsis zoo thiab kev saib xyuas zoo, cov pa oxygen yaj tau tuaj yeem hloov txhua rau lub hlis, yog tias txhua qhov kev nyeem ntawv ntsuas tau zoo. ib txwm;
10. Yog tias npuas txuas ntxiv tshwm rau hauv qab thaum ntsuas, lub taub hau sensor yuav tsum tau tig los thiab khi rau ntawm lub cable kom tsis txhob muaj npuas nyob ntawm qhov chaw ntawm cov yeeb yaj kiab yaj;
11. Dissolved Oxygen Meter Ordinary dissolved oxygen sensors yuav tsum nplawm thaum ntsuas. Kev nplawm kom zoo yog qhov tsim nyog kom tau txais qhov tseeb cov pa oxygen nyeem ntawv. Tsis tas yuav tsum tau nplawm thaum lub sij hawm ceev mem tes txoj kev thiab microelectrode array (MEA) ntsuas;
