DOS-1707 ppm theem portable Desktop Dissolved Oxygen Meter yog ib qho ntawm cov tshuaj electrochemical analyzers siv nyob rau hauv lub chaw soj nstuam thiab lub siab-ntseeg soj ntsuam tas li tsim los ntawm peb lub tuam txhab.Nws tuaj yeem nruab nrog DOS-808F Polarographic Electrode, ua tiav ntau yam ppm qib tsis siv neeg ntsuas.Nws yog ib qho cuab yeej tshwj xeeb uas siv los ntsuas cov ntsiab lus oxygen ntawm cov kev daws teeb meem hauv boiler pub dej, condensate dej, ib puag ncig tiv thaiv dej phwj thiab lwm yam lag luam.
| Kev ntsuas ntau | DO | 0.00–20.0mg / L | |
| 0.0–200% | |||
| Temp | 0.60 ℃(ATC/MTC) | ||
| Huab cua | 300-1100 hPa | ||
| Kev daws teeb meem | DO | 0.01mg / L, 0.1mg / L (ATC) | |
| 0.1% / 1% (ATC) | |||
| Temp | 0.1 ℃ | ||
| Huab cua | 1 hpa | ||
| Electronic unit ntsuas yuam kev | DO | ± 0.5% FS | |
| Temp | ± 0.2 ℃ | ||
| Huab cua | ± 5hPa | ||
| Calibration | Feem ntau 2 taw tes, (dej vapor saturated cua / xoom oxygen tov) | ||
| Fais fab mov | DC6V / 20mA; 4 x AA / LR6 1.5 V lossis NiMH 1.2 V thiab them tau | ||
| Loj/Qhov hnyav | 230 × 100 × 35 (mm) / 0.4 kg | ||
| Zaub | LCD | ||
| Sensor input connector | BNC | ||
| Cov ntaub ntawv khaws cia | Calibration data; 99 pab pawg ntsuas cov ntaub ntawv | ||
| Kev ua haujlwm | Temp | 5…40 ℃ | |
| txheeb ze humidity | 5% ... 80% (tsis muaj condensate) | ||
| Installation qib | Ⅱ | ||
| Cov pa phem qib | 2 | ||
| Qhov siab | <= 2000 m | ||
Dissolved oxygen yog ib qho kev ntsuas ntawm cov pa oxygen uas muaj nyob hauv dej.Cov dej noj qab haus huv uas tuaj yeem txhawb nqa lub neej yuav tsum muaj cov pa oxygen yaj (DO).
Dissolved Oxygen nkag mus rau hauv dej los ntawm:
ncaj qha nqus los ntawm huab cua.
ceev ceev txav los ntawm cua, nthwv dej, tam sim no los yog mechanical aeration.
dej cog lub neej photosynthesis raws li ib tug by-product ntawm txheej txheem.
Ntsuas cov pa oxygen yaj hauv dej thiab kev kho mob kom tswj tau cov qib DO, yog qhov tseem ceeb hauv ntau hom kev kho dej.Thaum yaj cov pa oxygen yog qhov tsim nyog los txhawb lub neej thiab kev kho cov txheej txheem, nws kuj tuaj yeem ua rau muaj kev puas tsuaj, ua rau oxidation ua rau cov khoom puas thiab cuam tshuam cov khoom.Dissolved oxygen cuam tshuam:
Quality: Lub DO concentration txiav txim siab qhov zoo ntawm cov dej.Yog tias tsis muaj DO txaus, cov dej hloov tsis zoo thiab tsis zoo cuam tshuam rau qhov zoo ntawm ib puag ncig, dej haus thiab lwm yam khoom.
Kev Ua Raws Cai: Ua raws li cov cai, cov dej khib nyiab feem ntau yuav tsum muaj qee yam ntawm DO ua ntej nws tuaj yeem tso tawm mus rau hauv cov kwj dej, pas dej, dej lossis hauv dej.Cov dej noj qab haus huv uas tuaj yeem txhawb nqa lub neej yuav tsum muaj cov pa oxygen yaj.
Kev Tswj Xyuas Txheej Txheem: DO qib yog qhov tseem ceeb los tswj kev kho cov dej khib nyiab, nrog rau theem biofiltration ntawm cov dej haus.Hauv qee cov ntawv thov kev lag luam (xws li kev tsim hluav taws xob) ib qho DO ua rau muaj kev puas tsuaj rau lub tshuab hluav taws xob thiab yuav tsum tau muab tshem tawm thiab nws cov concentrations yuav tsum nruj nruj.
