Dab tsi yog prepaid zog ntsuas

Prepaid watt-teev meters kuj hu ua kom muaj nuj nqis watt-teev meters thiab IC card watt-teev meters. Ntxiv nrog rau qhov ntsuas kev ua haujlwm ntawm cov ntsuas watt-teev ib teev, qhov tshwj xeeb yog cov neeg siv yuav hluav taws xob ua ntej thiab tom qab ntawd siv nws. Yog tias tus neeg siv tsis txuas ntxiv tom qab siv hluav taws xob, Thaum yuav khoom hluav taws xob, lub zog hluav taws xob yuav raug txiav tawm. Nws yog siv los ntsuas AC ib-theem hluav taws xob hluav taws xob hluav taws xob nrog qhov ntsuas zaus ntawm 50Hz, thiab paub txog kev tswj hwm kev them nyiaj ua ntej thiab tom qab ntawd siv hluav taws xob. Advanced microelectronics technology yog siv rau kev sau cov ntaub ntawv, ua thiab khaws cia, thiab cov ntawv xov tooj cua zaus siv los xa cov ntaub ntawv. Nws cov ntsuas kev ua tau zoo ua raws li GB/T17215-2002 thiab GB/T18460.3-2001 cov qauv. Nws muaj cov yam ntxwv ntawm qhov me me, kev nyab xeeb siab, kev ntseeg siab, thiab kev tiv thaiv hluav taws xob. Lub luag haujlwm tseem ceeb ntawm lub ntsuas hluav taws xob 1. Tsis siv neeg txiav lub hwj chim tom qab siv hluav taws xob yuav khoom.

2. Kev tswj cov khoom siv thauj khoom, ncua sij hawm hluav taws xob rau overload

3. Tswb kom tsis muaj zog txaus los ceeb toom cov neeg siv khoom siv hluav taws xob hauv lub sijhawm

4. Lub LCD npo log qhia cov ntaub ntawv siv hluav taws xob kom yooj yim saib los ntawm cov neeg siv.

5. Lub LCD npo ib txhij qhia txog lub zog uas muaj zog thiab tshuav lub zog kom meej thiab intuitively.

6. ISO txheem IC daim npav txais cov ntaub ntawv tshwj xeeb dynamic encryption algorithm, uas muaj kev nyab xeeb thiab txhim khu kev qha, ib lub rooj thiab ib daim npav

7. Loj-muaj peev xwm 'meter' nyeem daim npav, raug thiab raug ntsuas ntsuas

8. Daim npav yuav khoom hluav taws xob cia li luam rov qab cov ntaub ntawv siv hluav taws xob kom yooj yim rau kev tswj hwm thiab xyuas cov neeg siv cov ntaub ntawv.

9. Dedicated teeb tsa daim npav thiab daim npav hloov lub rooj kom yooj yim rau kev sau npe thiab kev saib xyuas los ntawm chav tswj xyuas

10. Txais kev siv hluav taws xob tua hluav taws xob los xyuas kom meej tias cov ntaub ntawv yuav tsis ploj tom qab 30 xyoo ntawm lub hwj chim tawm.

Prepaid watt-teev meters nqa tau yooj yim thiab cov txiaj ntsig zoo rau lub tuam txhab fais fab kev them nyiaj thiab ntsuas ntsuas, thiab tseem coj cov txiaj ntsig rau cov tuam txhab; raws li IC daim npav them ua ntej watt-teev meters manufacturers yuav tsum tau kawm tag nrho ntawm cov lus qhia ntawm rooj plaub no Tom qab ntau qhov kev xav, peb nquag ua tus kheej xav txog, tiv thaiv qhov kev hloov me ntsis, nquag tshem tawm cov khoom teeb meem, thiab ua lub luag haujlwm rau lub tuam txhab nws tus kheej, kev txhim kho ntawm kev lag luam, thiab zej zog! Cia peb koom ua ke tiv thaiv kev noj qab haus huv ntawm kev lag luam hluav taws xob meter!