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class="inside_rnewtil">QJ45攜帶式線(xiàn)路故障測(cè)試儀結(jié)構(gòu)技術(shù)參數(shù)</h1> <div id="n9tthmnkpza" class="inside_rnewtime">點(diǎn)擊次數(shù)：1098 更新更新時(shí)間：2019-06-19</div> <div id="n9tthmnkpza" class="inside_rnewcon"><p><span style="color:rgb(0, 0, 0); font-family:宋體,helvetica,arial,sans-serif; font-size:12px">QJ45攜帶式線(xiàn)路故障測(cè)試儀，主要以電橋測(cè)量原理組成各類(lèi)回線(xiàn)測(cè)試線(xiàn)路。用以檢測(cè)通訊電纜或通訊架空線(xiàn)等線(xiàn)路中的接地、混線(xiàn)、錯(cuò)接、斷線(xiàn)等故障，并且也宜作一般電阻的精密測(cè)量。由于儀器內(nèi)附有工作電源和靈敏指示儀表，便于在現(xiàn)場(chǎng)作線(xiàn)路檢測(cè)維修用。本儀器符合Q/YXNB15-2002企業(yè)標(biāo)準(zhǔn)。</span></p><p><span style="color:rgb(0, 0, 0); font-family:宋體,helvetica,arial,sans-serif; font-size:12px">QJ45攜帶式線(xiàn)路故障測(cè)試儀結(jié)構(gòu)主要由比例臂、比較臂、檢流計(jì)、功能變換電鍵、檢流計(jì)分流系數(shù)按鈕，外接指示器和外接電源接線(xiàn)端以及“接入”和“斷開(kāi)”開(kāi)關(guān)等組成。</span></p><p style="padding: 0px; margin: 0px; font-size: 12px; font-family: 宋體, Helvetica, Arial, sans-serif; color: rgb(0, 0, 0);">QJ45攜帶式線(xiàn)路故障測(cè)試儀的正面排列如下圖所示：</p><p style="padding: 0px; margin: 0px; font-size: 12px; font-family: 宋體, Helvetica, Arial, sans-serif; color: rgb(0, 0, 0);"> <img alt="" src="http://img66.afzhan.com/9/20150917/635780969253846520848.png" style="border:0px; height:223px; margin:0px; padding:0px; width:305px" /><br />（1）外接指示器接線(xiàn)端（G）<br />（2）外接電源接線(xiàn)端（B）<br />（3）比例臂旋鈕<br />（4）比較臂旋鈕<br />（5）被測(cè)線(xiàn)路接線(xiàn)端<br />（6）檢流計(jì)分流系數(shù)按鈕（G按鈕）<br />（7）脈沖電流測(cè)量法用“接入”和“斷開(kāi)”開(kāi)關(guān)（S開(kāi)關(guān)）<br />（8）比較臂引出端<br />（9）接地接線(xiàn)端<br />（10）檢流計(jì)<br />（11）功能變換電鍵（電鍵）<br />主要技術(shù)規(guī)格<br />測(cè)量范圍：<br />阻值測(cè) 量——1～1011000Ω（基本量程：10～104Ω）<br />回線(xiàn) 測(cè) 試——可變比例臂式和固定比例臂式<br />電容量測(cè)試——（供斷線(xiàn)和錯(cuò)接故障測(cè)量）<br />接地絕緣阻值——約105～107Ω<br />準(zhǔn)確度等級(jí)——0.1級(jí)<br />保證準(zhǔn)確度的溫度—— +15℃~+25℃（相對(duì)溫度<80%）<br />使用溫度范圍——+10℃～+35℃（附加誤差≤±0.1%）<br />比較臂指示值——10（1+10+100）Ω+（9×1000）Ω<br />檢流計(jì)靈敏度——＜1μA/每分度（內(nèi)阻＜200Ω）<br />工作電源伏—— 4.5伏（1.5伏1號(hào)干電池三節(jié)串聯(lián)）<br />外形尺寸—— 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