Q1 Qhov tsawg kawg nkaus ntws tus nqi
Q2 Tus nqi ntws hloov pauv
Q3 Tus nqi ntws mus tas li (kev ntws ua haujlwm)
Q4 Qhov nrawm ntawm kev thauj khoom ntau dhau
Xyuas kom tseeb tias qhov dej ntws siab tshaj plaws uas yuav hla dhau lub 'meter' yeej tsis tshaj Q3.
Feem ntau cov ntsuas dej muaj qhov tsawg kawg nkaus ntws (Q1), hauv qab uas lawv tsis tuaj yeem nyeem tau qhov tseeb.
Yog koj xaiv lub 'meter' loj, koj yuav poob qhov tseeb ntawm qhov qis dua ntawm qhov ntau ntawm cov dej ntws.
Cov 'meter' uas ua haujlwm tas li ntawm qhov ntau ntawm cov dej ntws ntau dhau (Q4) muaj lub neej luv dua thiab tsis raug.
Ntsuas koj lub 'meter' kom haum rau qhov dej ntws uas koj xav ntsuas.
Qhov piv ntawm kev tig rov qab R
Qhov ntau yam ua haujlwm metrological yog txhais los ntawm Qhov Sib Piv (Tus nqi no yog kev sib raug zoo ntawm Kev Ua Haujlwm Nqus / Kev Nqus Yam Tsawg Kawg Nkaus).
Qhov "R" Ratio siab dua, qhov kev nkag siab ntau dua ntawm lub 'meter' rau kev ntsuas cov nqi ntws qis.
Cov nqi txheem ntawm R piv hauv lub ntsuas dej yog cov hauv qab no*:
- R40, R50, R63, R80, R100, R125, R160, R 200, R250, R315, R400, R500, R630, R800, R1000.
(*Daim ntawv teev npe no tuaj yeem nthuav dav hauv qee cov serials. Nco ntsoov tias qhov no yog qhov hloov cov chav kawm metrological qub A, B, thiab C)
Thiab nco ntsoov tias lub 'meter' tsuas yog yuav raug yog tias cov xwm txheej ib puag ncig ua tau raws li txhua qhov kev xav tau ntawm cov chaw tsim khoom ntawm cov qauv ntws, kev teeb tsa, kub, ntau yam ntws, kev co thiab lwm yam.
Lanry Instruments Ultrasonic dej meter Ultrawater (DN50-DN300) serials Turndown piv R yog 500; SC7 serials (DN15-40) Turndown piv R yog 250; SC7 serials (DN50-600) Turndown piv R yog 400.
Lub sijhawm tshaj tawm: Lub Kaum Hli-14-2021