將靈敏電流計改裝成

電流表

指(zhi)針式電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)都(dou)是由靈(ling)敏(min)(min)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)改裝而來的(de)。靈(ling)敏(min)(min)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)即使(shi)靈(ling)敏(min)(min)度再高，通(tong)(tong)過的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)不超(chao)過30微安，而學生用電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)測得(de)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)強度都(dou)是0.6A，或者3A，遠(yuan)遠(yuan)超(chao)出醉大值。電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)既要讓電(dian)(dian)(dian)(dian)路(lu)上的(de)全部電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)通(tong)(tong)過，又不允許通(tong)(tong)過線(xian)圈的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)超(chao)過安全限(xian)度。電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)是與被測用電(dian)(dian)(dian)(dian)器串(chuan)聯的(de)，所以(yi)(yi)改裝時(shi)要分流(liu)(liu)(liu)(liu)。將靈(ling)敏(min)(min)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)與一個阻(zu)值較小的(de)電(dian)(dian)(dian)(dian)阻(zu)并(bing)聯，這(zhe)樣就會使(shi)大部分電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)通(tong)(tong)過電(dian)(dian)(dian)(dian)阻(zu)，小部分經過表(biao)(biao)頭(tou)。這(zhe)時(shi)將表(biao)(biao)頭(tou)標上新(xin)的(de)刻度，就可以(yi)(yi)了。

明泰(tai)(tai)電(dian)(dian)(dian)氣（蘇(su)州）有限公司(si)是正泰(tai)(tai)集團在蘇(su)州地區(qu)一家授權的經銷(xiao)企業，連續十(shi)年銷(xiao)量居正泰(tai)(tai)營(ying)銷(xiao)網絡名(ming)，公司(si)主(zhu)要經營(ying)“正泰(tai)(tai)”牌(pai)配電(dian)(dian)(dian)電(dian)(dian)(dian)器(qi)(qi)(qi)、控制(zhi)電(dian)(dian)(dian)器(qi)(qi)(qi)、終端(duan)電(dian)(dian)(dian)器(qi)(qi)(qi)、電(dian)(dian)(dian)源電(dian)(dian)(dian)器(qi)(qi)(qi)、電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)、儀器(qi)(qi)(qi)儀表、建筑電(dian)(dian)(dian)器(qi)(qi)(qi)、高壓電(dian)(dian)(dian)器(qi)(qi)(qi)及成套設備。

數顯電流表

顯(xian)(xian)(xian)電(dian)(dian)流(liu)表(biao)分為單相(xiang)數(shu)顯(xian)(xian)(xian)電(dian)(dian)流(liu)表(biao)和三相(xiang)數(shu)顯(xian)(xian)(xian)電(dian)(dian)流(liu)表(biao)，江蘇(su)正(zheng)泰(tai)電(dian)(dian)流(liu)表(biao)，該表(biao)具(ju)有(you)變送、LED（或(huo)(huo)LCD）顯(xian)(xian)(xian)示和數(shu)字(zi)接口等功能，通過對電(dian)(dian)網中各參量的交流(liu)采樣，正(zheng)泰(tai)電(dian)(dian)流(liu)表(biao)報價，以數(shu)字(zi)形式顯(xian)(xian)(xian)示測(ce)量結(jie)果。經CPU進行數(shu)據處理．將三相(xiang)（或(huo)(huo)單相(xiang)）電(dian)(dian)流(liu)、電(dian)(dian)壓、功率、功率因(yin)數(shu)、頻率等電(dian)(dian)參量由LED（或(huo)(huo)液晶）直(zhi)接顯(xian)(xian)(xian)示，同時輸(shu)出0～5V、0—20mA或(huo)(huo)4—20mA相(xiang)應的模擬電(dian)(dian)量，與(yu)遠動裝(zhuang)置RTU相(xiang)連(lian)；并帶有(you)RS--232或(huo)(huo)485接口。

明泰(tai)電(dian)(dian)(dian)氣（蘇(su)州(zhou)）有(you)限公司(si)是正泰(tai)集團在(zai)蘇(su)州(zhou)地(di)區一(yi)家(jia)授(shou)權的經(jing)銷企業，連續十(shi)年銷量居正泰(tai)營(ying)銷網(wang)絡(luo)名，正泰(tai)電(dian)(dian)(dian)流表價格，公司(si)主要經(jing)營(ying)“正泰(tai)”牌配電(dian)(dian)(dian)電(dian)(dian)(dian)器、控制(zhi)電(dian)(dian)(dian)器、終端電(dian)(dian)(dian)器、電(dian)(dian)(dian)源電(dian)(dian)(dian)器、電(dian)(dian)(dian)力電(dian)(dian)(dian)子、儀器儀表、建筑電(dian)(dian)(dian)器、高壓電(dian)(dian)(dian)器及(ji)成套設備。

類型的(de)(de)選擇(ze)。當(dang)被測(ce)(ce)(ce)(ce)(ce)量(liang)是(shi)直流(liu)時，應選直流(liu)表，即(ji)磁電系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)量(liang)機(ji)(ji)構的(de)(de)儀(yi)表。當(dang)被測(ce)(ce)(ce)(ce)(ce)量(liang)是(shi)交(jiao)流(liu)時，應注意其(qi)波形與頻率。若為正(zheng)弦(xian)(xian)波，正(zheng)泰電流(liu)表供應商，只(zhi)需(xu)測(ce)(ce)(ce)(ce)(ce)出有效(xiao)值即(ji)可換算為其(qi)他(ta)值（如醉(zui)大值、平(ping)均值等(deng)），采用(yong)任意一種交(jiao)流(liu)表即(ji)可；若為非正(zheng)弦(xian)(xian)波，則應區分(fen)需(xu)測(ce)(ce)(ce)(ce)(ce)量(liang)的(de)(de)是(shi)什么(me)值，有效(xiao)值可選用(yong)磁系(xi)(xi)或鐵磁電動(dong)系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)量(liang)機(ji)(ji)構的(de)(de)儀(yi)表，平(ping)均值則選用(yong)整流(liu)系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)量(liang)機(ji)(ji)構的(de)(de)儀(yi)表。電動(dong)系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)量(liang)機(ji)(ji)構的(de)(de)儀(yi)表常用(yong)于交(jiao)流(liu)電流(liu)和(he)電壓的(de)(de)精(jing)密測(ce)(ce)(ce)(ce)(ce)量(liang)。