Cov ntsiab lus yuav tsum nco ntsoov rau txhua xyoo calibration ntawm clamp meters
Tam sim no clamp meters ntsuas tam sim no los ntawm kev tsis sib cuag, ua rau nwsnyab xeeb duathiab yooj yim dua kom tau txais kev ntsuas. Tam sim no clamps feem ntau muaj peev xwm ntsuas ntxiv xws li voltage thiab on-off. Clamp meters feem ntau yuav tsum tau calibration txhua xyoo los xyuas kom meej tias lawv ua tau raws li tus neeg tsim khoom specifications.
Nov yog 7 yam tseem ceeb uas yuav tsum tau xav txog thaum ntsuas lub ntsuas ntsuas clamp:
1. Clamp meters tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg.
Lub puab tsaig loj tsim ua rau cov txheej txheem calibration nyuaj thiab yuav tsum tau xaiv cov khoom tsim nyog calibration.
2. Feem ntau niaj hnub no clamp meters yog multifunctional.
Ntxiv rau qhov tam sim no, feem ntau clamp-on meters tuaj yeem ntsuas qhov voltage,tsis kam, qhib / tawm, thiab lwm yam haujlwm uas muaj rau digitalmultimeters.
3. Tsis yog txhua tus calibrators yog nyob ntawm txoj haujlwm.
Ntawm cov zis ntau dua, ntau lub calibrators txwv cov zis tas mus li rau cov dej ntws siab. Tsis tas li ntawd, koj yuav tsum siv lub calibrator uas muaj tseeb txaus thiab muaj qhov ua raws li qhov hluav taws xob txaus los tsav lub kauj. Fluke siv "L-COMP" (inductive them) txhawm rau txhawm rau txhawm rau ua raws li qhov xav tau ntawm kev tsav tshebinductiveloads.
Coil inductance tuaj yeem ua rau muaj qhov yuam kev, yog li zam qhov chaw tam sim no tsis tsim rau cov coils tam sim no. Transients thaum hloov qhov tam sim no rau thiab tawm yuav ua rau qhov chaw tam sim no mus.
4. Tam sim no coil winding (tig) thiab ntau yam tseem ceeb heev.
Tus naj npawb ntawm cov lem ntawm lub kauj siv yuav tsum txaus los ntsuas tag nrho cov tam sim no ntawm cov clamp tam sim no. Lub coil winding txiav txim siab npaum li cas ntawm cov dej ntws tam sim no. Piv txwv li, lub calibrator nrog 50 lem thiab qhov tso zis ntawm 20 A yuav qhia qhov siab tshaj plaws ntawm 1, 000 A ntawm lub ntsuas ntsuas.
5. Tsis txhob saib cov khoom siv ntxiv. Qee lub ntsuas clamp tuaj yeem tuaj nrog cov ntsuas tam sim no hloov tau, xws li Fluke iFlex, uas yuav tsum tau ntsuas nrog lub ntsuas ntsuas.
6. Cov dej ntws siab ua kom sov.
Cov coils tam sim no yuav tsum tau tsim kom dissipate cua sov ntau li ntau tau. Coils feem ntau muaj lub sijhawm ua haujlwm siab tshaj plaws ntawm cov dej ntws siab dua.
7. Txoj hauj lwm tseem ceeb heev.
Thaum kho cov clamp meter nrog lub kauj tam sim no, xyuam xim rau qhov tam sim no clamp stray teb thiab txoj hauj lwm rhiab heev. Tsis txhob cuam tshuam thaj chaw los ntawm lwm yam khoom siv thiab cov coj tam sim no. Nco ntsoov lub clamp meter alignment marks. Teem lub axis ntawm lub clamp 'meter' sib npaug mus rau lub kauj axis thiab kho lub puab tsaig dav hlau perpendicular mus rau lub coil leads.
