Handheld Loop Resistance Tester - 100A DC

Lub MOEORW-WKH100C Loop Resistance Tester (tseem hu ua Contact Resistance Tester, High-Tam sim no Micro-Ohmmeter, lossis Hnyav-Tam sim no ntsuas ntsuas ntsuas) yog ib qho txuas ntxiv mus rau -cov khoom siv ntsuas ntsuas tam sim no nrog DL / T nruj 845.4-2022 "Cov Lus Qhia Tshwj Xeeb rau Kev Ntsuas Kev Ntsuas" thiab SD301-88 "AC 500kV Cov Khoom Siv Hluav Taws Xob Kev Xa thiab Kev Tiv Thaiv Kev Ntsuas." Nws yog ntau tshaj li cov pa micro-ohmmeter-nws yog lub ntsuas hluav taws xob siab tam sim no muaj peev xwm nkag mus rau oxide zaj duab xis ntawm qhov chaw tiv tauj.

Hauv cov tshuab hluav taws xob, lub voj tsis kam ntawm Circuit Court breakers, disconnectors, thiab cov cuab yeej zoo sib xws yog qhov tseem ceeb ntawm lawv cov kev ua haujlwm noj qab haus huv. Qhov txawv txav siab tiv thaiv qhov tseem ceeb qhia tias kev sib cuag tsis zoo, uas tuaj yeem ua rau muaj kev kub ntxhov hauv cheeb tsam thiab txawm tias kub hnyiab dhau kev ua haujlwm ntev. Cov cuab yeej no muab cov kev ntsuas DC ntshiab tam sim no ntawm Ntau dua lossis sib npaug ntawm 100A, ua kom nkag mus rau cov txheej txheem oxide insulating ntawm cov chaw sib cuag kom tau txais qhov tseeb ntawm cov hlau sib tiv tauj, yog li muab lub hauv paus txhim khu kev qha rau kev ntsuas cov khoom siv.

Vim li cas 100A siab tam sim no tseem ceeb? Raws li Joule txoj cai, cov yeeb yaj kiab oxide raug muag los yog thermal tawg nyob rau hauv siab tam sim no ceev. Tsuas yog nyob rau hauv cov xwm txheej no, qhov ntsuas qhov tsis kam sawv cev rau qhov "loop resistance" es tsis yog "film resistance." Tsawg- kev ntsuas tam sim no (ob peb amperes lossis milliamperes) tsuas yog tuaj yeem ntes cov rwb thaiv tsev tiv thaiv ntawm oxide txheej, nrog rau qhov yuam kev tuaj yeem ncav cuag ntau npaug rau kaum tawm zaus- qhov no yog qhov sib txawv ntawm qhov ntsuas no thiab cov multimeters zoo tib yam lossis qis - kawg milliohmmeters.

Nkag siab "rdg ± 1 μΩ": "rdg" qhia txog kev nyeem ntawv yuam kev, thaum "1 μΩ" yog qhov yuam kev ruaj khov. Piv txwv li, thaum ntsuas 100μΩ, qhov yuam kev tsis yog 100 × 0.5% + 1=1.5μΩ, txhais tau tias tus nqi tseeb yog nyob nruab nrab ntawm 98.5μΩ thiab 101.5μΩ- qhov raug theem siab siab txaus siab rau cov qauv kev lees paub kev lees paub rau 110μΩ.

Cov cuab yeej siv plaub - davhlau ya nyob twg Kelvin ntsuas architecture sab hauv, muaj ob lub davhlau ya nyob twg ywj pheej ntawm lub vaj huam sib luag pem hauv ntej:

• C1/C2 (Tam sim no cov zis Terminals) - Txuas mus rau lub thicker cables nyob rau hauv lub xeem coj teeb, xa 100A siab tam sim no rau lub cuab yeej nyob rau hauv kev sim (DUT).
• P1 / P2 (Voltage Input Terminals) - Txuas mus rau cov cables thinner, tsuas yog ua piv txwv qhov hluav taws xob poob thoob plaws DUT.
• Lub ntsuas hluav taws xob ntsuas lub voj muaj qhov input impedance ntawm ob peb megaohms, nrog rau tam sim no ntws ntawm microampere theem. Yog li ntawd, qhov kev tiv thaiv ntawm qhov kev ntsuam xyuas ua rau lawv tus kheej (txawm tias nyob rau ntawm 6 meters nyob rau hauv ntev nrog me ntsis khoov) thiab kev tiv thaiv ntawm lub clamps thiab DUT tsis nkag mus rau hauv voltage ntsuas Circuit Court. Qhov kawg kuj tus nqi yog xam raws li Voltage / 100A (tus nqi tam sim no), ywj siab ntawm cov hlau lead tsis kam-qhov no yog qhov sib txawv tseem ceeb uas teeb tsa qhov kev hloov lub voj voog tiv thaiv qhov ntsuas tsis sib xws ntawm qhov qis qis -cov ntsuas ntsuas.
• Txoj kev ua pov thawj kev ua haujlwm: Cov neeg siv tuaj yeem ua qhov kev sim yooj yim - ntsuas tib qhov chaw sib cuag siv cov khoom lag luam - cov kev xeem tshiab thiab tom qab ntawd rov siv cov neeg laus laus; cov kev nyeem ntawv yuav tsum nyob twj ywm ib qho tseem ceeb, intuitively validating plaub -hlau system tiv thaiv kab mob los tiv thaiv.

1. Ib qho -Kov Kev Ntsuas Ntse - Tsis Xav Tau Kev Kho Zero
Tom qab lub hwj chim - qhib, tsis tas yuav hloov kho potentiometer. Tsuas yog teeb tsa lub sijhawm tam sim no thiab lub sijhawm dhau los ntawm ntawm -cov ntawv qhia zaub mov, tom qab ntawd nias 【OK】 pib qhov kev xeem. Kev nyeem ntawv pib- xauv thaum muaj kev ruaj ntseg; nias 【OK】 dua kom nres thiab nkag mus rau qhov luam tawm / txuag kev xaiv interface. Qhov tsis muaj lub tshuab potentiometers tshem tawm xoom drift tshwm sim los ntawm kev vibration-ib qho txiaj ntsig tseem ceeb rau kev kuaj xyuas tsheb.

2. Ntawm -Site Data Storage & Multiple Export Options
Ua -nyob rau hauv pem hauv ntej- thauj khoom micro- tshuab luam ntawv: Cov ntawv ntsuas ntsuas tam sim ntawm - qhov chaw (suav nrog hnub tim, tus nqi tam sim no, thiab tus nqi tsis kam) raws li cov ntaub ntawv tseem ceeb, tshem tawm phau ntawv sau.
Direct USB tsav export: Txhawb FAT32-formatted USB drives; cov ntaub ntawv xeem raug khaws tseg hauv CSV hom rau Excel ntshuam thiab kev tsom xam.
Kev sib txuas lus Bluetooth (optional): Nrog rau cov software ua khub, xa cov ntaub ntawv wirelessly rau lub laptops lossis ntsiav tshuaj, cia li tsim A4- cov ntawv ceeb toom ua raws li "Cov Txheej Txheem Kev Tiv Thaiv Hluav Taws Xob Hluav Taws Xob" - tshwj xeeb muaj txiaj ntsig rau cov neeg siv yuav tsum tau muab cov ntaub ntawv lees paub.

3. Dav -Cub LCD & Sab nraum zoov Ruggedness
Nruab nrog dav - kub Suav- tus cwj pwm LCD, ua haujlwm ntawm -10℃txog 40 degree, cov zaub tseem pom tau yam tsis muaj hluav taws xob lossis dab phem txawm nyob rau nruab nrab hnub ci. Lub tsev yog tsim los ntawm high-strength engineering yas, muab kev cuam tshuam tsis kam thiab zoo heev rwb thaiv tsev zog.

4. Lus Toggle (Internationalization Detail)
Ntawm lub ntsiab interface, nias 【◄】 thiab 【OK】 ib txhij hloov ntawm Suav thiab lus Askiv zaub - pab txhawb kev lag luam rau kev xa khoom xa tuaj lossis thaum cov neeg saib xyuas txawv teb chaws tuaj rau ntawm - qhov chaw.

Cov cuab yeej no ua haujlwm raws li cov cuab yeej siv thoob ntiaj teb hauv kev teeb tsa hluav taws xob, kev saib xyuas, thiab kev sim. Cov xwm txheej ntawm kev thov ib txwm muaj xws li:
High-voltage circuit breaker conductive loop resistance testing (ntsuas lub ntsiab tiv thaiv nyob rau hauv cov xwm txheej kaw)-qhov no yog lub hom phiaj tseem ceeb tsim thiab yuav tsum tau tiv thaiv cov khoom kuaj ib DL/T 596.
Disconnector thiab earthing hloov kev sib cuag ntiv tes ntsuas ntsuas, txhawm rau txheeb xyuas seb qhov kev sib cuag lub caij nplooj ntoo hlav puas tau degraded los yog qhov chaw tiv tauj tau muaj cov kab mob sib kis.
Busbar lapped pob qij txha, txhuas- tooj liab hloov pauv txuas, thiab cable davhlau ya nyob twg crimp kev soj ntsuam zoo, txhawm rau tiv thaiv kev kub ntxhov hauv cheeb tsam los ntawm kev ua haujlwm tsis zoo.
Cov khoom siv hluav taws xob xa mus thiab kev kuaj pom zoo, tsim kom muaj qhov tseem ceeb ntawm qhov kev tiv thaiv ua ntej cov chaw nres tsheb tshiab raug txib- ua "cov ntaub ntawv ntiv tes" rau kev sib piv txij nkawm yav tom ntej.
Tshaj tawm -fault re- kuaj, xws li kev ntsuam xyuas sai ntawm seb cov neeg sib cuag puas tau welded los yog raug ablation tom qab luv luv -circuit tam sim no surges.
Siv raws li qhov siab -tam sim no tsis tu ncua- qhov tam sim no, ua ke nrog tus qauv sab nraud shunt kom nthuav dav kev ua haujlwm rau kev ntsuas lwm yam kev tiv thaiv- hom sensors.
Nyob rau hauv cov xwm txheej no, cov engineers teb feem ntau xa mus rau qhov ntsuas no raws li lub ntsuas hluav taws xob tiv thaiv hluav taws xob lossis lub tshuab hluav taws xob DC siab -tam sim no micro-ohmmeter. Nws cov txiaj ntsig tseem ceeb nyob hauv kev ua tiav nrog ib qho kev tuav ib leeg - qib ntaus ntawv dab tsi yav tas los yuav tsum muaj qhov siab loj - lub tshuab hluav taws xob tam sim no thiab ib lub millivoltmeter cais ua haujlwm nyob rau hauv tandem.

Raws li cov kws tsim khoom siv hluav taws xob ntsuas hluav taws xob, peb muab kev txhawb nqa sib txawv hauv qab no rau B- cov neeg siv khoom kawg:

• Custom test lead lengths: Txheem 6-meter leads yog muab; txuas ntxiv mus rau 10m lossis 15m yog muaj raws li qhov kev thov (nrog rau qhov ntsuas qhov sib txuas ntxiv kom ntseeg tau tias qhov hluav taws xob poob tam sim no tseem nyob hauv qhov kev tso cai txwv).
• Cov khoom lag luam nruab nrab / kev cai: Txhawb kev hloov kho ntawm lub cev lub npe, vaj huam sib luag txhob lo lo ntxhuav - kev tshuaj ntsuam, thiab cov thawv ntawv sab nrauv luam tawm rau cov neeg siv khoom lag luam, nrog rau MOQ hloov tau yooj yim.
• Qhib software raws tu qauv: Bluetooth kev sib txuas lus raws tu qauv tuaj yeem hloov kho rau kev cuam tshuam nrog cov neeg siv khoom siv rov qab- tsis muaj lub platform xauv-hauv.
• Factory calibration daim ntawv pov thawj: Txhua lub cuab yeej yog nrog los ntawm cov ntaub ntawv calibration traceable mus rau lub xeev -theem metrology institutes, tshem tawm qhov yuav tsum tau rau thib peb thib ob- pov thawj tog thaum tuaj txog thiab txo cov neeg siv khoom txais.

Cov kev qhia tshwj xeeb uas tau teev tseg hauv daim ntawv no siv tau raws li hnub tsim khoom. Yog tias yav tom ntej kev ua haujlwm hloov kho lossis kev txhim kho zoo li tshwm sim, yuav tsis muaj kev ceeb toom cais tawm -thov xa mus rau cov khoom siv tiag tiag -txawm li cas los xij, peb lav tias cov ntsuas kev ntsuas kev ua haujlwm tseem ceeb yuav tsis raug txo qis.