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更新時間：2019-09-16 
瀏覽次數：1531電(dian)(dian)(dian)(dian)能質量分(fen)析儀配有(you)一(yi)(yi)條四芯的電(dian)(dian)(dian)(dian)壓(ya)測試(shi)(shi)(shi)線、一(yi)(yi)套電(dian)(dian)(dian)(dian)流測試(shi)(shi)(shi)線和三只(zhi)電(dian)(dian)(dian)(dian)流測試(shi)(shi)(shi)鉗(qian)(根據需(xu)要可配備到(dao)六只(zhi)).電(dian)(dian)(dian)(dian)壓(ya)測試(shi)(shi)(shi)線用來接(jie)入被測電(dian)(dian)(dian)(dian)壓(ya)信號(hao),通常在(zai)現場要求精度不是很(hen)高時用電(dian)(dian)(dian)(dian)流鉗(qian)進行測試(shi)(shi)(shi),每(mei)只(zhi)電(dian)(dian)(dian)(dian)流鉗(qian)分(fen)別(bie)對應(ying)一(yi)(yi)個鉗(qian)表接(jie)口(kou),不能互換,否(fou)則會影響測試(shi)(shi)(shi)精度,每(mei)只(zhi)鉗(qian)表中間有(you)一(yi)(yi)個圓(yuan)標貼,顯示出鉗(qian)表的相別(bie)和極性(xing)(xing)(標N的一(yi)(yi)端(duan)為(wei)電(dian)(dian)(dian)(dian)流的流出端(duan),在(zai)使(shi)用接(jie)線要注(zhu)意(yi)極性(xing)(xing),接(jie)反(fan)會影響測試(shi)(shi)(shi)結果).
在測試過程中要(yao)注意的問題:
1.要(yao)在測(ce)(ce)試前插(cha)好(hao)電(dian)流(liu)(liu)測(ce)(ce)試鉗,嚴禁先夾(jia)被(bei)測(ce)(ce)信號后插(cha)入電(dian)流(liu)(liu)鉗插(cha)座,這相當于電(dian)流(liu)(liu)測(ce)(ce)試鉗二次開路,容易產生(sheng)開路高(gao)壓,損壞儀(yi)器(qi).測(ce)(ce)試完成后要(yao)先摘下所(suo)有電(dian)流(liu)(liu)測(ce)(ce)試鉗再(zai)拔下與(yu)主機(ji)相連(lian)的插(cha)頭(tou).
2.測試鉗為保證各通(tong)道精度,應一(yi)一(yi)對應,要把各電流(liu)鉗正確插入(ru)wei一(yi)與(yu)之(zhi)對應的插座.交(jiao)換不(bu)同輸入(ru),會降低(di)了測試精度,但交(jiao)叉后(hou)一(yi)般測試精度也不(bu)會超出(chu)在±2%.
3.接(jie)(jie)入電(dian)壓(ya)信號(hao)時測試線(xian)一(yi)定要先接(jie)(jie)到(dao)儀器(qi)的電(dian)壓(ya)端子(zi),然(ran)后再(zai)接(jie)(jie)到(dao)被(bei)測設(she)備的電(dian)壓(ya)端子(zi);測試完成后一(yi)定要先摘下被(bei)測設(she)備的電(dian)壓(ya)接(jie)(jie)頭(tou),然(ran)后再(zai)拆除儀器(qi)側的電(dian)壓(ya)線(xian).(此條尤(you)為重要,反之可(ke)能引(yin)起大事故)
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