Dab tsi yog cov txheej txheem calibration rau portable yaj oxygen meter?
Ib qho kev ntsuas oxygen yaj yog ib qho cuab yeej rau ntsuas cov pa oxygen hauv dej. Nws txoj hauv kev ua haujlwm yog tias cov pa oxygen txo qis los ntawm kev ua haujlwm electrode los ntawm lub diaphragm, tsim kom muaj qhov sib txawv tam sim no proportional rau oxygen concentration. Los ntawm kev ntsuas qhov tam sim no, qhov concentration ntawm cov pa oxygen yaj hauv dej tau txais.
Cov txheej txheem calibration ntawm portable dissolved oxygen analyzer yog raws li nram no:
1. Saib seb cov zaj duab xis nyias ntawm lub hau electrode puas puas. Yog tias muaj kev puas tsuaj, hloov cov thawj electrode tip, ntxiv electrolyte rau lub tshiab electrode tip, hloov nws ntawm electrode, thiab so lub electrode qhuav.
2. Nyhav 5.00g ntawm anhydrous sodium sulfite khoom, dissolve nws nyob rau hauv dej distilled, thiab npaj ib 100mL tov, uas yog ib tug 5% xoom calibration tov.
3. Nias lub khawm pib, qhib lub hwj chim, qhuav cov electrodes, thiab ua tib zoo nqus cov dej noo ntawm zaj duab xis.
4. Muab cov pa oxygen electrode tso rau hauv 5% sodium sulfite tov, thiab nrog lub ntsuas ntsuas hauv hom ntsuas, nias lub pob "Mode/Measurement" kom nkag mus rau hom xaiv hom.
5. Nias tus yuam sij "▲/mg · L-1/%" lossis tus yuam sij "▼/Storage" xaiv "ZERO" (hauv qab sab laug ntawm lub vijtsam), thiab nias lub "OK/Print" yuam kom nkag mus rau xoom oxygen calibration muaj nuj nqi ntawm lub ntsuas. Tom qab kev nyeem ntawv ruaj khov, nias lub pob "OK/Print", thiab lub ntsuas yuav tso tawm "0.00mg/L". Tom qab li 5 vib nas this, qhov ntsuas yuav cia li tawm ntawm lub xeev "ZERO".
6. Tshem tawm cov electrode thiab qhuav nws, muab tso rau ntawm lub platform, nias lub pob "▲/mg · L-1/%" lossis "▼/Storage" khawm kom xaiv "FULL" (hauv qab lub kaum sab laug ntawm lub vijtsam zaub), thiab lub ntsuas yuav nkag mus rau tag nrho oxygen calibration muaj nuj nqi xeev. Nias lub pob "OK/Print". Tom qab kev nyeem ntawv ruaj khov, nias lub pob "OK/Print", thiab cov cuab yeej yuav tso tawm cov nqi oxygen tam sim no. Tom qab li 5 vib nas this, qhov ntsuas yuav cia li tawm hauv lub xeev "Full".
7. Rov ua cov kauj ruam 2-6 ob zaug kom txog thaum lub calibration ruaj khov.
