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id="1571n5fppxr7" class="inpage_content"> <div class="1571n5fppxr7" id="nr_main_box"> <div class="1571n5fppxr7" id="pro_detail_box01"> <div class="1571n5fppxr7" id="pro_detail_text"> <h1>直流單雙臂電橋</h1> <div id="1571n5fppxr7" class="pro_ms"> <div id="1571n5fppxr7" class="bt">簡(jiǎn)要描述：</div> <p>QJ49a直流單雙臂電橋簡(jiǎn)要說(shuō)明：測(cè)量范圍： 1Ω～1.11110ΜΩ 準(zhǔn)確度： 0.05%</p> </div> <p><strong>型號(hào)：</strong>QJ49a</p> <p><strong>瀏覽量：</strong>1041</p> <p><strong>更新時(shí)間：</strong>2024-10-25</p> <p><strong>價(jià)格：</strong><a href="#order"><img src=/images/cankaojia.gif border=0></a></p> <a href="#tagContent1" class="gwc_an2 lightbox" style=" float:left;" rel="group1">在線留言</a> </div> <div class="1571n5fppxr7" id="preview"> <div id="1571n5fppxr7" class="jqzoom"><a target="_blank"><img id="bigImg" src="http://img53.chem17.com/gxhpic_c8334a7b44/73772409919cd492c93da3bd9d1230f39ac484e710830fc7ae189002ffdb302efcb86b7f8a08f5ce.png" onload="AutoResizeImage(320,320,this)" jqimg="http://img53.chem17.com/gxhpic_c8334a7b44/73772409919cd492c93da3bd9d1230f39ac484e710830fc7ae189002ffdb302efcb86b7f8a08f5ce.png" alt="直流單雙臂電橋"></a></div> </div> </div>  <div class="1571n5fppxr7" id="ny_pro_box02"> <div class="1571n5fppxr7" id="con"> <ul id="tags"> <li id="1571n5fppxr7" class="selectTag"><a onmouseover="selectTag('tagContent0',this)" href="javascript:void(0)" onfocus="this.blur()">詳細(xì)介紹</a></li> </ul> <div class="1571n5fppxr7" id="tagContent"> <div id="1571n5fppxr7" class="tagContent selectTag" id="tagContent0" style="display: block;"><link type="text/css" rel="stylesheet" href="/css/property.css"> <script> window.onload=function(){ changeTableHeight(); } window.onresize=function(){ changeTableHeight(); } function changeTableHeight(){ $(".proshowParameter table th").each(function?(i,o){ ????var $this=$(o),? ????height=$this.next().height(); ????$(this).css("height",height); var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); $(".proshowParameter table td").each(function?(i,o){ var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>其他品牌</td><th>產(chǎn)地類別</th><td>國(guó)產(chǎn)</td></tr><tr><th>應(yīng)用領(lǐng)域</th><td>石油,地礦,能源,電氣,綜合</td> <th></th><td></td></tr> </tbody> </table> </section><p><strong style="background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"> <strong>直流單雙臂電橋</strong>QJ49a</strong><span style="font-size: small; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial;">內(nèi)附晶體管放大檢流計(jì)和能內(nèi)附工作電源。適合于工礦企業(yè)、實(shí)驗(yàn)室或車間現(xiàn)場(chǎng)能及野外工作場(chǎng)所作直流電阻測(cè)量之用。<strong>直流單雙臂電橋</strong>用來(lái)測(cè)量其范圍內(nèi)的直流電阻。金屬導(dǎo)體的電阻率、導(dǎo)線電阻、直流分流器電阻、開(kāi)關(guān)、電器的接觸電阻及各類電機(jī)。變壓器的繞線電阻和溫升試驗(yàn)等。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="font-size: small;"><strong style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;">上海<strong>直流單雙臂電橋</strong>QJ49a</strong>技術(shù)性能：<br/>1.測(cè)量范圍：1Ω～1.11110MΩ<br/>2.準(zhǔn)確度： 0.05%<br/>3.各量程主要參數(shù)</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="font-size: small;">4.QJ49a型<strong>直流單雙臂電橋</strong>電源：4.5V（1號(hào)1.5V干電池3節(jié)）；9V（6F22型電池1節(jié)）<br/>5.外型尺寸：314×265×165（㎜）<br/><br/>6.<strong>直流單雙臂電橋</strong>質(zhì)量：約4.5㎏</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="font-size: small;"></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" font-weight:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">使用方法</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">見(jiàn)圖</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> 2.<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">:</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">打開(kāi)儀器箱底的電池盒</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">按電池極性放入工作電池</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">號(hào)干電池五節(jié)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">兩節(jié)并聯(lián)供</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">三節(jié)串聯(lián)供</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">層疊電池一節(jié)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="">(2) <span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">B</span></span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">開(kāi)關(guān)推向</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">開(kāi)</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">的位置<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">指零儀接入</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">工作電源</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">再旋轉(zhuǎn)動(dòng)項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">指零儀調(diào)零旋鈕</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">使指零儀指針指零。</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">測(cè)量</span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">一般測(cè)量：</span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">11</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">R</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">1<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">1</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">2</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">B</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">4</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">5</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">1.5V</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">4.5V</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">3(</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">)</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">=</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> </span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">同名義值電阻的比較測(cè)量</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> </span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">將被測(cè)電阻接到項(xiàng)<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">測(cè)試電阻接線端鈕</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" font-size:="">X1</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">置于×</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">處</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">測(cè)量盤示值應(yīng)與被測(cè)電阻相同。按下項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">和</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">并調(diào)節(jié)項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">和</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">（微調(diào)測(cè)量盤）使指零儀無(wú)偏轉(zhuǎn)，則：</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">=</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">+</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="">此測(cè)量法適宜作阻值范圍在<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" font-size:="">2</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">4</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">10</span></span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω，或需要提高測(cè)量時(shí)，則：被測(cè)電阻<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">測(cè)量盤示值之和</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">微調(diào)測(cè)量盤示值</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">零位電阻</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">零位電阻值一般為</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> b.<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">12(</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">R</span></span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">)<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">3</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">(</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">1000)</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">2</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">1</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">4</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">5,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">7</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">:</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">=</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">+</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="">此測(cè)量法適宜作阻值范圍在<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω±</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω間電阻值的比較</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">比較為±</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">當(dāng)電阻箱使用<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> 在儀器項(xiàng)<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">的兩端線端鈕處引出可作為</span></span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">×</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">可調(diào)電阻箱使用</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="" font-weight:="">五<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">注意事項(xiàng)</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">若被測(cè)電阻值為*未知時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)將項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">由逆方向旋至進(jìn)起始點(diǎn)附近</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">靈敏度處</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">調(diào)節(jié)項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">使電橋接近平衡</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">再逐漸增加靈敏度</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">并使電橋再次平衡</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">以避免指零儀劇烈偏轉(zhuǎn)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">若指零儀指針劇偏一邊</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">不回零點(diǎn)時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">可將項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">放開(kāi)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">指針即可恢復(fù)至零點(diǎn)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="">3.<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">(</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">)</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">5,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">4,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">4,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">當(dāng)測(cè)量小于功率電阻或直徑很細(xì)的導(dǎo)線電阻時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">在靈敏度能滿足測(cè)量要求時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)該采用較低電壓的電源按鈕</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">B</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">"</span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">在測(cè)量</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">被測(cè)量電阻的接線電阻要小于</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">歐姆</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">當(dāng)測(cè)量小于</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">Ω的被測(cè)電阻值時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">要扣除</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">歐姆接線電阻之和所引起的誤差</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:=""> 5.<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">1000</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="" font-size:="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.(</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">)</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">在需要提高測(cè)量靈敏度時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">可在項(xiàng)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">外接指零儀接線端</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" font-size:="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">外</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">處<span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">外接高靈敏指零儀</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">此時(shí)應(yīng)將左上角的</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" font-size:="">1</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">B</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="" font-size:="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">儀器測(cè)量完畢</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)將左上角的</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" font-size:="">1</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">, B</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="" font-size:="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">"</span><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">儀器測(cè)量完畢</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)發(fā)現(xiàn)靈敏度顯著下降</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)調(diào)換儀器箱底兩電池盒內(nèi)的工作電源</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">號(hào)電池五節(jié)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">層疊電池一節(jié)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">若儀器長(zhǎng)期不用時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)將內(nèi)附電池取出</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">避免電解液泄露腐蝕儀器</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" p="" class="\"p0\"" span="" font-size:="">9.<span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">,</span><span style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="" times="" new="">.</span></span></p><p class="\"p0\"" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; word-wrap: break-word; color: rgb(51, 51, 51); font-family: "Microsoft Yahei"; white-space: normal;"><span font-size:="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">儀器在運(yùn)輸時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)有防震</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">防潮包裝</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">用戶攜帶時(shí)</span><span times="" new="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;" span="">應(yīng)注意不使儀器碰撞</span><span times="" new="" roman\"="" style="margin: 0px; padding: 0px; border: 0px; outline: 0px;">.</p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="font-size: small;"><br/></span><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="font-size: small;"><strong style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;">上海技術(shù)參數(shù)：</strong></span></p><div id="1571n5fppxr7" class="tabledivclass" style="width: 99%; height: 204px;"><table border="1" cellpadding="0" cellspacing="0" style="border-spacing: 0px; color: rgb(51, 51, 51); font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 12px; line-height: 22px; font-family: 宋體, Arial; background-color: rgb(255, 255, 255); text-size-adjust: auto; margin: 0px; padding: 0px; width: 357.75pt; max-width: 748px;" align="left"><tbody><tr class="firstRow"><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">量程倍率</span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">有效量程（Ω）</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">準(zhǔn)確度（%）</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×10<sup>-3</sup></span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">1～11.1110</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.1</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×10<sup>-2</sup></span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">10～111.110</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.1</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×10<sup>-1</sup></span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">100～1111.10</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.05</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×1</span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">1000～11111.0</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.05</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×10</span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">10000～111110</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.05</span></p></td></tr><tr><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">×10<sup>2</sup></span></p></td><td style="margin: 0px; background-color: transparent; width: 156px;"><p><span style="font-size: small;">100000～1111100</span></p></td><td style="margin: 0px; background-color: transparent; width: 157px;"><p><span style="font-size: small;">0.05</span></p></td></tr></tbody></table></div></div> <div 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