PC57直流電阻測(cè)量?jī)x性能特點(diǎn)簡(jiǎn)介-上?？档请姎饪萍加邢薰?/title> <link type="text/css" rel="stylesheet" href="/Skins/106676/css/index.css" /> <script src="/skins/106676/js/jquery-3.6.0.min.js"></script> <link rel="stylesheet" type="text/css" href="/skins/106676/css/swiper.min.css"> <script type="text/javascript" src="/skins/106676/js/swiper.min.js"></script>  <script language="javascript" type="text/javascript"> var nav= '5'; var menu= '0'; </script>  <link rel="shortcut icon" href="/skins/106676/favicon.ico"> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http://www.mtech.org.cn/Article-3899180.html", "title": "PC57直流電阻測(cè)量?jī)x性能特點(diǎn)簡(jiǎn)介", "pubDate": "2024-12-20T09:50:36", "upDate": "2024-12-20T09:50:36" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('https://chat.chem17.com',83189) }</script><script>!window.jQuery && 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class="ncontent w_1100"> <div id="ubjn47ipz" class="h-6">技術(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > PC57直流電阻測(cè)量?jī)x性能特點(diǎn)簡(jiǎn)介</span></div>  <div id="ubjn47ipz" class="n-3 c-news"> <div id="ubjn47ipz" class="newsnr"> <h1>PC57直流電阻測(cè)量?jī)x性能特點(diǎn)簡(jiǎn)介</h1> <p class="source"><span>日期：2024-12-20</span><span>瀏覽：93次</span></p> <div> <p style="line-height:31px"><strong><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 宋體, SimSun;">PC57直流電阻測(cè)量?jī)x</span></span></strong><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 宋體, SimSun;"></span><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 宋體, SimSun;">性能特點(diǎn)簡(jiǎn)介</span></strong></span><strong><span style="font-family: 宋體, SimSun;">：</span></strong></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"> <span style="font-size: 16px; font-family: "Times New Roman";">PC</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">57</span><span style="font-family: 幼圓; font-size: 19px;">直流電阻測(cè)量?jī)x是電線電纜導(dǎo)體直流電阻測(cè)量的專用儀表，儀表的技術(shù)性能應(yīng)能全面滿足</span><strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">GB/T3048.4</span><span style="font-size: 16px; font-family: 幼圓;">導(dǎo)體直流電阻試驗(yàn) </span></span></strong><span style="font-family: 幼圓; font-size: 19px;">中對(duì)測(cè)量設(shè)備的各項(xiàng)技術(shù)要求，本儀表創(chuàng)新開發(fā)了多項(xiàng)新技術(shù)</span><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">，測(cè)量快速、準(zhǔn)確、讀數(shù)穩(wěn)定、使用方便。是</span><span style="font-size: 16px; font-family: "Times New Roman";">QJ57</span><span style="font-size: 16px; font-family: 幼圓;">等雙臂電橋的更新?lián)Q代產(chǎn)品，與同類的數(shù)字式微歐計(jì)相比，本儀表有以下特點(diǎn)：</span></span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">1.1 </span><strong><span style="font-family: 幼圓; font-size: 19px;">高靈敏度與高分辨力</span></strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">。本儀表</span><span style="font-size: 16px; font-family: "Times New Roman";">2m</span><span style="font-size: 16px; font-family: 幼圓;">Ω檔，該量程的分辨力為</span><span style="font-size: 16px; font-family: "Times New Roman";">0. 1</span><span style="font-size: 16px; font-family: 幼圓;">μΩ（</span><span style="font-size: 16px; font-family: "Times New Roman";">10</span></span><sup><span style="font-size: 19px; vertical-align: super; font-family: "Times New Roman";">-7</span></sup><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">Ω），比現(xiàn)有的最大測(cè)量電流為</span><span style="font-size: 16px; font-family: "Times New Roman";">1A</span><span style="font-size: 16px; font-family: 幼圓;">的數(shù)字式微歐計(jì)的最高分辨力提高了</span><span style="font-size: 16px; font-family: "Times New Roman";">10</span><span style="font-size: 16px; font-family: 幼圓;">倍。本儀器采用特制了高靈敏、低噪聲的納伏放大器，其電壓靈敏度為</span><span style="font-size: 16px; font-family: "Times New Roman";">100</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">nV (0.1</span><span style="font-family: 幼圓; font-size: 19px;">μ</span><span style="font-family: "Times New Roman"; font-size: 19px;">V)</span><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">，測(cè)</span><span style="font-size: 16px; font-family: "Times New Roman";">100</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">mm</span><sup><span style="font-family: "Times New Roman"; font-size: 19px; vertical-align: super;">2</span></sup><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">截面</span><span style="font-size: 16px; font-family: "Times New Roman";">1</span><span style="font-size: 16px; font-family: 幼圓;">米銅線，保證有</span><span style="font-size: 16px; font-family: "Times New Roman";">4</span><span style="font-size: 16px; font-family: 幼圓;">位有效讀數(shù)，特別適用于較大截面導(dǎo)線與超小截面微細(xì)導(dǎo)線的測(cè)量。</span></span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">1.2</span><strong><span style="font-family: 幼圓; font-size: 19px;">多電流測(cè)量功能</span></strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">。本儀器的各個(gè)量程設(shè)置了不同的測(cè)量電流可供選擇，并在儀表面板上標(biāo)明。該性能克服了目前數(shù)字表及某些電橋（如</span><span style="font-size: 16px; font-family: "Times New Roman";">QJ57</span><span style="font-size: 16px; font-family: 幼圓;">）測(cè)量電流不能調(diào)節(jié)，而且在某些檔位電流偏大引起被測(cè)導(dǎo)體發(fā)熱的缺陷。為了實(shí)現(xiàn)多電流測(cè)量，儀表采用了創(chuàng)新的數(shù)字比例式測(cè)量電路，其工作原理與電橋相仿。與目前數(shù)字式微歐計(jì)常用的恒流源</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">—</span><span style="font-family: 幼圓; font-size: 19px;">電壓表方式不同，本儀表讀數(shù)的最終表達(dá)式與測(cè)量電流無(wú)關(guān)，大大降低了對(duì)恒流源的精度要求，同時(shí)提高了儀表測(cè)量的準(zhǔn)確度和穩(wěn)定性。</span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: "Times New Roman"; font-size: 19px;">1.3</span></strong><strong><span style="font-family: 幼圓; font-size: 19px;">反向電流測(cè)量功能</span></strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">。根據(jù)</span><span style="font-size: 16px; font-family: "Times New Roman";">GB/T 3048.5</span><span style="font-size: 16px; font-family: 幼圓;">第</span><span style="font-size: 16px; font-family: "Times New Roman";">5.5</span><span style="font-size: 16px; font-family: 幼圓;">條規(guī)定，當(dāng)試樣電阻小于</span><span style="font-size: 16px; font-family: "Times New Roman";">0.1</span><span style="font-size: 16px; font-family: 幼圓;">Ω時(shí)，應(yīng)將電流反向再測(cè)一次，然后取算術(shù)平均值。在電橋法中，該功能是通過(guò)切換外部換向閘刀實(shí)現(xiàn)的，而通常數(shù)字式微歐計(jì)是不容許電流反向的，無(wú)法實(shí)現(xiàn)標(biāo)準(zhǔn)要求的操作。本儀器中采用特殊設(shè)計(jì)的雙向電流保護(hù)電路</span><span style="font-size: 16px; font-family: "Times New Roman";">(</span><span style="font-size: 16px; font-family: 幼圓;">技術(shù)</span><span style="font-size: 16px; font-family: "Times New Roman";">)</span><span style="font-size: 16px; font-family: 幼圓;">，允許進(jìn)行反向電流測(cè)量，通過(guò)面板開關(guān)實(shí)施電流換向操作，操作簡(jiǎn)捷、使用方便。</span></span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: "Times New Roman"; font-size: 19px;">1.4 </span></strong><strong><span style="font-family: 幼圓; font-size: 19px;">交直流兩用，使用方便。</span></strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">本儀器（</span><span style="font-size: 16px; font-family: "Times New Roman";">PC57</span><span style="font-size: 16px; font-family: 幼圓;">）為便攜式結(jié)構(gòu)，在車間現(xiàn)場(chǎng)或野外測(cè)量成盤電纜時(shí)，可用機(jī)內(nèi)電池供電，不用接電源線，操作特別方便；在試驗(yàn)室等固定場(chǎng)合，則可使用外接電源，用交流電源供電，減少電池消耗。</span></span><strong></strong></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">1.5</span><span style="font-size: 16px; font-family: 幼圓;">性能價(jià)格比高，適用范圍廣 </span></span></strong><span style="font-family: 幼圓; font-size: 19px;"> <span style="font-size: 19px; font-family: 宋體, SimSun;"><span style="font-size: 16px;">本儀器在實(shí)現(xiàn)上述多功能及高性能的同時(shí)</span><span style="font-size: 16px;">, </span><span style="font-size: 16px;">其價(jià)格僅為相同技術(shù)指標(biāo)（</span><span style="font-size: 16px;">0. 1</span><span style="font-size: 16px;">μΩ分辨力，</span><span style="font-size: 16px;">0.05</span><span style="font-size: 16px;">級(jí)測(cè)量準(zhǔn)確度）的同類數(shù)字式低阻計(jì)的幾分之一</span><span style="font-size: 16px;">, </span><span style="font-size: 16px;">特別適合中、小電線電纜廠、漆包線生產(chǎn)廠用于導(dǎo)體電阻試驗(yàn)，作為</span><span style="font-size: 16px;">QJ23</span><span style="font-size: 16px;">、</span><span style="font-size: 16px;">QJ44</span><span style="font-size: 16px;">、</span><span style="font-size: 16px;">QJ57</span><span style="font-size: 16px;">等各種電橋的更新?lián)Q代產(chǎn)品，本儀器同時(shí)適用于電力部門快速測(cè)量大型變壓器、發(fā)電機(jī)、電動(dòng)機(jī)的直流電阻，開關(guān)接觸電阻，精密測(cè)量、檢定各類分流器。</span></span></span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 19px;"> </span></strong></span></p><p style="text-align: center"><img src="https://img43.chem17.com/9/20241220/638702849524797734698.jpg" alt="57.jpg" style="width:800px;"/></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 19px;"></span></strong><strong></strong></span><br/></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 19px;"> <span style="font-size: 16px; font-family: "Times New Roman";">2</span><span style="font-size: 16px; font-family: 幼圓;">基本參數(shù) </span></span></strong><strong></strong></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: 幼圓;">儀表的基本參數(shù)見表</span><span style="font-size: 19px; font-family: "Times New Roman";">1</span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"> </span><strong><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">表</span><span style="font-size: 16px; font-family: "Times New Roman";">1 </span><span style="font-size: 16px; font-family: 幼圓;">基本參數(shù)</span></span></strong><strong></strong></span></p><div id="ubjn47ipz" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:20px;page-break-inside:avoid" class="firstRow"><td width="117" valign="top" rowspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: 1px solid windowtext; border-bottom: none;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">參數(shù)名稱</span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">型號(hào)</span></span></p></td></tr><tr style="height:16px;page-break-inside:avoid"><td width="291" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: "Times New Roman"; font-size: 16px;"> PC57</span></p></td><td width="269" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: "Times New Roman"; font-size: 16px;"> PC57A</span></p></td></tr><tr style="height:24px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">測(cè)量范圍</span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;"> </span><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">0. 1</span><span style="font-family: 幼圓; font-size: 14px;">μΩ</span><span style="font-family: "Times New Roman"; font-size: 14px;">-1999.9</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td></tr><tr style="height:12px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">額定測(cè)量電流</span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;"> </span><span style="font-size: 14px; font-family: "Times New Roman";"> 0.1</span><span style="font-family: "Times New Roman"; font-size: 14px;">mA-1A </span></span></p></td></tr><tr style="height:14px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">雙向電流測(cè)量</span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">內(nèi)附電流換向裝置，可進(jìn)行正、反向電流測(cè)量</span></span></p></td></tr><tr style="height:4px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: "Times New Roman"; font-size: 14px;"> </span><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span><span style="font-size: 16px; font-family: 幼圓;">顯示</span></span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: "Times New Roman";"> 4 1/2 </span><span style="font-size: 16px; font-family: 幼圓;">位數(shù)字顯示，字高</span><span style="font-size: 16px; font-family: "Times New Roman";">3</span></span><span style="font-family: "Times New Roman"; font-size: 14px;">5mm<span style="font-size: 16px; font-family: 幼圓;">，</span></span><span style="font-family: 幼圓; font-size: 14px;">量程顯示，單位顯示，帶背光</span></span></p></td></tr><tr style="height:27px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">準(zhǔn)確度等級(jí)</span></span></p></td><td width="560" valign="top" colspan="2" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 0.05</span><span style="font-size: 14px; font-family: 幼圓;">級(jí)、</span><span style="font-size: 14px; font-family: "Times New Roman";">0.1</span><span style="font-size: 14px; font-family: 幼圓;">級(jí)</span></span></p></td></tr><tr style="height:30px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">電源</span></span></p></td><td width="291" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 1</span><span style="font-size: 14px; font-family: 幼圓;">號(hào)電池</span><span style="font-size: 14px; font-family: "Times New Roman";">8</span><span style="font-size: 14px; font-family: 幼圓;">節(jié)或</span><span style="font-size: 14px; font-family: "Times New Roman";">AC220V</span><span style="font-size: 14px; font-family: 幼圓;">（外接電源）</span></span></p></td><td width="269" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: "Times New Roman"; font-size: 16px;"> AC220V</span></p></td></tr><tr style="height:25px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">最大功耗</span></span></p></td><td width="291" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> DC</span><span style="font-size: 14px; font-family: 幼圓;">：</span><span style="font-size: 14px; font-family: "Times New Roman";">12V 300mA</span><span style="font-size: 14px; font-family: 幼圓;">；</span><span style="font-size: 14px; font-family: "Times New Roman";">AC</span><span style="font-size: 14px; font-family: 幼圓;">：</span><span style="font-size: 14px; font-family: "Times New Roman";">5VA</span></span></p></td><td width="269" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="margin-left:3px;line-height:29px"><span style="font-family: "Times New Roman"; font-size: 16px;"> 7VA</span></p></td></tr><tr style="height:28px;page-break-inside:avoid"><td width="117" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">體積、重量</span></span></p></td><td width="291" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 270</span><span style="font-size: 14px; font-family: 幼圓;">×</span><span style="font-size: 14px; font-family: "Times New Roman";">115</span><span style="font-size: 14px; font-family: 幼圓;">×</span><span style="font-size: 14px; font-family: "Times New Roman";">250mm</span><span style="font-size: 14px; font-family: 幼圓;">（</span><span style="font-size: 14px; font-family: "Times New Roman";">W</span><span style="font-size: 14px; font-family: 幼圓;">×</span><span style="font-size: 14px; font-family: "Times New Roman";">H</span><span style="font-size: 14px; font-family: 幼圓;">×</span><span style="font-size: 14px; font-family: "Times New Roman";">D</span><span style="font-size: 14px; font-family: 幼圓;">）；</span><span style="font-size: 14px; font-family: "Times New Roman";">2.5kg</span></span></p></td><td width="269" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext; word-break: break-all;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">面板安裝式儀表，用戶尺寸</span></span></p></td></tr></tbody></table></div><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 19px; font-family: "Times New Roman";"><br/></span></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">3</span><span style="font-size: 16px; font-family: 幼圓;">技術(shù)要求 </span></span></strong><strong></strong></span></p><p style="margin-left:24px;line-height:29px"><span style="font-family: 幼圓; font-size: 16px;">3.1 儀器使用環(huán)境條件 </span></p><p style="line-height:29px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";">3.1.1 </span>環(huán)境溫度<span style="font-size: 16px; font-family: "Times New Roman";">: a</span>）標(biāo)稱工作溫度：<span style="font-size: 16px; font-family: "Times New Roman";">15-25</span>℃</span></p><p style="line-height:29px"><span style="font-family: 幼圓; font-size: 16px;"> <span style="font-size: 16px; font-family: 宋體;">b</span>）正常工作溫度：<span style="font-size: 16px; font-family: "Times New Roman";">5-35</span>℃</span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">3.1.2 </span><span style="font-size: 16px; font-family: 幼圓;">相對(duì)濕度不大于</span><span style="font-size: 16px; font-family: "Times New Roman";">85%</span></span><span style="font-family: "Times New Roman"; font-size: 19px;"> </span><span style="font-size: 19px; font-family: "Times New Roman";">RH</span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">3.1.3 </span><span style="font-size: 16px; font-family: 幼圓;">電源</span><span style="font-size: 16px; font-family: "Times New Roman";">: DC</span><span style="font-size: 16px; font-family: 幼圓;">：</span><span style="font-size: 16px; font-family: "Times New Roman";">8.5</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">—</span><span style="font-size: 19px; font-family: "Times New Roman";">12.5V</span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"> <span style="font-size: 16px; font-family: "Times New Roman";">AC: 220V</span>±<span style="font-size: 16px; font-family: "Times New Roman";">10%, 50H</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">z</span><span style="font-family: 幼圓; font-size: 19px;">±<span style="font-size: 16px; font-family: "Times New Roman";">2H</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">z</span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.1.4 </span><span style="font-size: 19px; font-family: 幼圓;">除地磁場(chǎng)外，無(wú)電脈沖電火花等電磁場(chǎng)</span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.2 </span><span style="font-size: 19px; font-family: 幼圓;">基本誤差</span></span></p><p style="line-height:29px"><span style="font-family: 幼圓; font-size: 16px;"> 在標(biāo)稱溫度（<span style="font-size: 16px; font-family: "Times New Roman";">15-25</span>℃）下，儀表各量程的基本誤差見表<span style="font-size: 16px; font-family: "Times New Roman";">2</span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-family: 幼圓; font-size: 14px;"> <span style="font-size: 16px; font-family: 幼圓;">表</span><span style="font-size: 16px; font-family: "Times New Roman";">2 </span><span style="font-size: 16px; font-family: 幼圓;">基本誤差</span></span></strong><strong></strong></span></p><div id="ubjn47ipz" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:33px;page-break-inside:avoid" class="firstRow"><td width="222" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span><span style="font-size: 16px; font-family: 幼圓;">量程</span></span></span></p></td><td width="450" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">基本誤差</span></span></p></td></tr><tr style="height:20px;page-break-inside:avoid"><td width="222" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 2</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">Ω</span><span style="font-size: 16px; font-family: 宋體;">-</span><span style="font-size: 16px; font-family: "Times New Roman";">20</span></span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td><td width="450" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span><span style="font-size: 16px; font-family: 宋體;"> </span><span style="font-size: 16px; font-family: 幼圓;">±</span><span style="font-size: 16px; font-family: 宋體;">(</span><span style="font-size: 16px; font-family: "Times New Roman";">0.0</span></span><span style="font-family: "Times New Roman"; font-size: 14px;">8</span><span style="font-size: 14px; font-family: "Times New Roman";">%</span><i><span style="font-family: "Times New Roman"; font-size: 14px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 14px; vertical-align: sub;">X</span></sub></i><span style="font-family: "Times New Roman"; font-size: 14px;">+0.02</span><span style="font-size: 14px; font-family: "Times New Roman";">%</span><i><span style="font-family: "Times New Roman"; font-size: 14px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 14px; vertical-align: sub;">m</span></sub></i><span style="font-size: 14px; font-family: "Times New Roman";">)</span></span></p></td></tr><tr style="height:10px;page-break-inside:avoid"><td width="222" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 200</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">Ω</span><span style="font-size: 16px; font-family: 宋體;">-</span><span style="font-size: 16px; font-family: "Times New Roman";">2000</span>Ω</span></span></p></td><td width="450" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span><span style="font-size: 16px; font-family: 幼圓;">±</span><span style="font-size: 16px; font-family: 宋體;">(</span><span style="font-size: 16px; font-family: "Times New Roman";">0.04%</span></span><i><span style="font-family: "Times New Roman"; font-size: 14px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 14px; vertical-align: sub;">X</span></sub></i><span style="font-family: "Times New Roman"; font-size: 14px;">+0.0</span><span style="font-size: 14px; font-family: "Times New Roman";">1%</span><i><span style="font-family: "Times New Roman"; font-size: 14px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 14px; vertical-align: sub;">m</span></sub></i><span style="font-size: 14px; font-family: "Times New Roman";">)</span></span></p></td></tr></tbody></table></div><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;">其中</span><i><span style="font-family: "Times New Roman"; font-size: 19px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 19px; vertical-align: sub;">X</span></sub></i><span style="font-family: 幼圓; font-size: 19px;">：儀表讀數(shù)值（電阻示值）</span><strong><span style="font-family: 幼圓; font-size: 19px;"> </span></strong><i><span style="font-family: "Times New Roman"; font-size: 19px;">R</span></i><i><sub><span style="font-family: "Times New Roman"; font-size: 19px; vertical-align: sub;">m</span></sub></i><span style="font-family: 幼圓; font-size: 19px;">：所測(cè)量程滿度值</span><strong></strong></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.3 </span><span style="font-size: 19px; font-family: 幼圓;">準(zhǔn)確度等級(jí)</span></span></p><p style="text-indent:24px;line-height:29px"><span style="font-family: 幼圓; font-size: 16px;"> 在標(biāo)稱溫度（<span style="font-size: 16px; font-family: "Times New Roman";">15-25</span>℃）下，儀表各量程的準(zhǔn)確度等級(jí)及最大允許誤差見表<span style="font-size: 16px; font-family: "Times New Roman";">3</span></span></p><p style="line-height:29px"><span style="font-family: 幼圓; font-size: 16px;">當(dāng)環(huán)境溫度為<span style="font-size: 16px; font-family: "Times New Roman";">0-40</span>℃范圍時(shí)<span style="font-size: 16px; font-family: 宋體;">,</span>儀表的準(zhǔn)確度降低一個(gè)等級(jí)。 </span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"> </span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"> <span style="font-size: 16px; font-family: "Times New Roman";">2</span></span><span style="font-family: 幼圓; font-size: 14px;"> </span><span style="font-family: 幼圓; font-size: 19px;"> </span><span style="font-family: 幼圓; font-size: 14px;"> </span></span></p><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"> </span><strong><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">表</span><span style="font-size: 16px; font-family: "Times New Roman";">3 </span><span style="font-size: 16px; font-family: 幼圓;">準(zhǔn)確度等級(jí)與最大允許誤差</span></span></strong><strong></strong></span></p><div id="ubjn47ipz" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:28px;page-break-inside:avoid" class="firstRow"><td width="180" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">量程</span></span></p></td><td width="216" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">準(zhǔn)確度等級(jí)</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: none; border-right: 1px solid windowtext; border-top: 1px solid windowtext; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">最大允許誤差</span></span></p></td></tr><tr style="height:23px;page-break-inside:avoid"><td width="180" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 2</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">Ω</span><span style="font-size: 16px; font-family: 宋體;">-</span><span style="font-size: 16px; font-family: "Times New Roman";">20</span></span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td><td width="216" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><span style="font-family: "Times New Roman"; font-size: 14px;">0.</span><span style="font-size: 14px; font-family: "Times New Roman";">1</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><span style="font-family: 幼圓; font-size: 14px;">±<span style="font-size: 16px; font-family: "Times New Roman";">0.1%</span></span><strong></strong></span></p></td></tr><tr style="height:7px;page-break-inside:avoid"><td width="180" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 200</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;"><span style="font-size: 16px; font-family: 幼圓;">Ω</span><span style="font-size: 16px; font-family: 宋體;">-</span><span style="font-size: 16px; font-family: "Times New Roman";">2000</span>Ω</span></span></p></td><td width="216" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><span style="font-family: "Times New Roman"; font-size: 14px;">0.</span><span style="font-size: 14px; font-family: "Times New Roman";">05</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:29px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><strong><span style="font-family: "Times New Roman"; font-size: 14px;"> </span></strong><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><span style="font-family: 幼圓; font-size: 14px;">±<span style="font-size: 16px; font-family: "Times New Roman";">0.05%</span></span><strong></strong></span></p></td></tr></tbody></table></div><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.4 </span><span style="font-size: 19px; font-family: 幼圓;">額定電流</span></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"> <span style="font-size: 19px; font-family: 幼圓;">儀表各測(cè)量檔位的額定電流標(biāo)稱值見表</span><span style="font-size: 19px; font-family: "Times New Roman";">4</span><span style="font-size: 19px; font-family: 幼圓;">。</span></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 14px;"> </span><strong><span style="font-family: 幼圓; font-size: 14px;"> <span style="font-size: 16px; font-family: 幼圓;">表</span><span style="font-size: 16px; font-family: "Times New Roman";">4 </span><span style="font-size: 16px; font-family: 幼圓;">額定電流標(biāo)稱值</span></span></strong><strong></strong></span></p><div id="ubjn47ipz" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellspacing="0" align="left" style="max-width: 748px;"><tbody><tr style="height:28px;page-break-inside:avoid" class="firstRow"><td width="190" valign="top" rowspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></span></p><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">量程</span></span></p></td><td width="435" valign="top" colspan="2" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-size: 14px; font-family: 幼圓;">測(cè)量狀態(tài)</span></span></p></td></tr><tr style="height:27px;page-break-inside:avoid"><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span>常規(guī)電流（<span style="font-size: 16px; font-family: "Times New Roman";">Nor</span>）</span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-width: 1px; border-style: solid; border-color: windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> </span>低電流（<span style="font-size: 16px; font-family: "Times New Roman";">Low</span>）</span></p></td></tr><tr style="height:27px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 2</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><strong><span style="font-family: 幼圓; font-size: 14px;">————</span></strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: "Times New Roman"; font-size: 16px;"> 1A</span></p></td></tr><tr style="height:27px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 20</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: "Times New Roman"; font-size: 16px;"> 1A</span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;"> </span><span style="font-size: 14px; font-family: "Times New Roman";"> </span><strong><span style="font-family: 幼圓; font-size: 14px;">————</span></strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></span></p></td></tr><tr style="height:23px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> 200</span><span style="font-family: "Times New Roman"; font-size: 14px;">m</span><span style="font-family: 幼圓; font-size: 14px;">Ω</span></span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><strong><span style="font-family: 幼圓; font-size: 14px;">————</span></strong><span style="font-size: 14px; font-family: "Times New Roman";"> </span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;"> </span><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">100mA</span><span style="font-size: 14px; font-family: "Times New Roman";"> </span></span></p></td></tr><tr style="height:31px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> 2</span>Ω</span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">100mA</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">10mA</span></span></p></td></tr><tr style="height:30px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> 20</span>Ω</span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">10mA</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">1mA</span></span></p></td></tr><tr style="height:15px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> 200</span>Ω</span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">1mA</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">100</span><span style="font-family: 幼圓; font-size: 14px;">μ</span><span style="font-family: "Times New Roman"; font-size: 14px;">A</span></span></p></td></tr><tr style="height:23px"><td width="190" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 幼圓; font-size: 16px;"><span style="font-size: 16px; font-family: "Times New Roman";"> 2000</span>Ω</span></p></td><td width="207" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><span style="font-family: "Times New Roman"; font-size: 14px;">100</span><span style="font-family: 幼圓; font-size: 14px;">μ</span><span style="font-family: "Times New Roman"; font-size: 14px;">A</span></span></p></td><td width="228" valign="top" style="padding: 0px 7px; border-left: 1px solid windowtext; border-right: 1px solid windowtext; border-top: none; border-bottom: 1px solid windowtext;"><p style="line-height:32px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 14px; font-family: "Times New Roman";"> </span><strong><span style="font-family: 幼圓; font-size: 14px;">————</span></strong><strong></strong></span></p></td></tr></tbody></table></div><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.5</span><span style="font-size: 19px; font-family: 幼圓;">雙向電流測(cè)量</span></span></p><p style="text-indent:28px;line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: 幼圓;">在消除了測(cè)量回路的熱電勢(shì)偏差后，儀表在正向電流下的測(cè)量結(jié)果與反向電流下的測(cè)量結(jié)果的相差值，不超過(guò)儀表基本誤差的</span><span style="font-size: 19px; font-family: "Times New Roman";">1/2</span><span style="font-size: 19px; font-family: 幼圓;">。</span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.6 </span><span style="font-size: 19px; font-family: 幼圓;">電池低電壓指示 </span><span style="font-size: 19px; font-family: "Times New Roman";">(</span><span style="font-size: 19px; font-family: 幼圓;">僅</span><span style="font-size: 19px; font-family: "Times New Roman";">PC57)</span></span></p><p style="line-height:31px"><span style="font-family: 幼圓; font-size: 16px;"> 當(dāng)電池電壓低于<span style="font-size: 16px; font-family: "Times New Roman";">8.5</span>±<span style="font-size: 16px; font-family: "Times New Roman";">0.3V</span>時(shí)<span style="font-size: 16px; font-family: "Times New Roman";">, </span>儀表面板上的電池低電壓告警紅色指示燈亮，提示用戶更換電池或改用外接電源操作，此時(shí)儀表仍為正常工作狀態(tài)，測(cè)量結(jié)果有效。如果繼續(xù)使用機(jī)內(nèi)電池，當(dāng)電池電壓低于儀表正常工作范圍時(shí)，儀表顯示屏上的背光照明自動(dòng)熄滅，此時(shí)，測(cè)量結(jié)果無(wú)效。</span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">3.6 </span><span style="font-size: 16px; font-family: 幼圓;">絕緣電阻</span></span><strong></strong></span></p><p style="text-indent:28px;line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;">交流電源輸入端與機(jī)殼接地端及儀表測(cè)量端之間的絕緣電阻應(yīng)不小于</span><span style="font-family: "Times New Roman"; font-size: 19px;">3</span><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: "Times New Roman";">0M</span>Ω。</span></span></p><p style="line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-size: 19px; font-family: "Times New Roman";">3.7 </span><span style="font-size: 19px; font-family: 幼圓;">工頻耐壓</span></span></p><p style="text-indent:28px;line-height:31px"><span style="font-family: 宋體, SimSun; font-size: 16px;"><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">交流電源輸入端與機(jī)殼接地端及儀表測(cè)量端之間應(yīng)承受</span><span style="font-size: 16px; font-family: "Times New Roman";">45H</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">z</span><span style="font-size: 19px; font-family: "Times New Roman";">-65H</span><span style="font-family: "Times New Roman"; font-size: 19px;">z</span><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">任意頻率下，實(shí)際正弦交流電壓</span><span style="font-size: 16px; font-family: "Times New Roman";">1.5</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">kV</span><span style="font-family: 幼圓; font-size: 19px;"><span style="font-size: 16px; font-family: 幼圓;">歷時(shí)</span><span style="font-size: 16px; font-family: "Times New Roman";">1</span></span><span style="font-family: "Times New Roman"; font-size: 19px;">min</span><span style="font-family: 幼圓; font-size: 19px;">試驗(yàn)，無(wú)擊穿或飛弧現(xiàn)象。</span></span></p><p><br/></p> <div id="ubjn47ipz" class="clear"></div> </div> <div id="ubjn47ipz" class="article"> <p>上一篇：<a href="/Article-3899208.html">電纜導(dǎo)體電阻測(cè)量?jī)x使用方法注意事項(xiàng)</a></p> <p>下一篇：<a href="/Article-3893928.html">變壓器直流電阻測(cè)試儀在試驗(yàn)操作時(shí)需要注意的細(xì)節(jié)</a></p> 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