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ZX76P直流電(dian)阻(zu)箱（六組開關）調(diao)節(jie)范圍：0～111111.0Ω，Z小(xiao)步(bu)進(jin)值(zhi)100mΩ，外形(xing)尺(chi)寸：320×280×170（mm） 。

QJ23直流單臂(bei)電橋采用(yong)(yong)惠斯登(deng)電橋線路，內附指零儀(yi)和電池盒，用(yong)(yong)來(lai)測量其范圍內的(de)直流電阻。便于攜帶，使用(yong)(yong)方便。

QJ57P直流(liu)雙臂電(dian)(dian)(dian)橋采用凱爾文線(xian)路寬量程的(de)攜帶(dai)式精密型直流(liu)電(dian)(dian)(dian)橋。產品(pin)置(zhi)有(you)指零(ling)儀并能內附工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)源。適宜工(gong)(gong)礦(kuang)企業、科研單位(wei)的(de)實(shi)驗室及室、車間(jian)現場或野外工(gong)(gong)作(zuo)(zuo)場所對直流(liu)低電(dian)(dian)(dian)阻作(zuo)(zuo) 測量。是電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜行業規程產品(pin)。

QJ49E型直(zhi)流單(dan)臂(bei)電(dian)橋(qiao)是采用惠(hui)斯(si)登電(dian)橋(qiao)線(xian)路設計的(de)便(bian)攜帶式直(zhi)流電(dian)阻電(dian)橋(qiao)。儀器(qi)內置指零儀和可內附工作電(dian)源。

QJ49a直(zhi)流(liu)單雙臂電(dian)(dian)橋用來測量其(qi)范圍內(nei)的(de)(de)直(zhi)流(liu)電(dian)(dian)阻(zu)。金屬導(dao)體的(de)(de)電(dian)(dian)阻(zu)率、導(dao)線電(dian)(dian)阻(zu)、直(zhi)流(liu)分流(liu)器(qi)(qi)電(dian)(dian)阻(zu)、開(kai)關、電(dian)(dian)器(qi)(qi)的(de)(de)接觸電(dian)(dian)阻(zu)及(ji)各類(lei)電(dian)(dian)機。變壓器(qi)(qi)的(de)(de)繞線電(dian)(dian)阻(zu)和溫升試驗等(deng)。

QJ48比較儀式電(dian)橋(qiao)用作0.01%電(dian)阻(zu)箱、0.01%電(dian)橋(qiao)等直(zhi)流電(dian)阻(zu)精密儀器的檢(jian)定。使用本儀器不必采用替代法，且由于(yu)內(nei)附標(biao)準(zhun)電(dian)阻(zu)量(liang)具，故免除對示值的修(xiu)正。

QJ45E型攜帶式通訊(xun)線(xian)(xian)路故障(zhang)測試儀用于檢測通訊(xun)電纜或(huo)通訊(xun)架(jia)空線(xian)(xian)路等線(xian)(xian)路中(zhong)的(de)接(jie)地、混地、錯接(jie)、斷線(xian)(xian)等故障(zhang)，并(bing)且也適(shi)宜作一般電阻的(de)測量(liang)。