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characteristics</span></div> <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>環(huán)保,化工,地礦,能源,電子</td> <th></th><td></td></tr> </tbody> </table> </section><p><span style="font-size:16px"><strong>ZX79C＋型兆歐表標(biāo)準(zhǔn)電阻器講解</strong></span></p><p><strong><span style="font-size:12pt"><span style="font-family:宋體">一、</span></span></strong> <span style="font-size:16px"><strong>ZX79C＋型兆歐表標(biāo)準(zhǔn)電阻器</strong></span><strong><span style="font-size:12pt"><span style="font-family:宋體">用途 </span></span></strong></p><p style="margin-left:21.0000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">本電阻器主要用于檢定額定電壓為</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">5000V</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">的各類</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">兆歐表</span></span></p><p><span style="font-size:12.0000pt"><span style="font-family:宋體">和</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">各類絕緣電阻</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">表生產(chǎn)或修理中重新點(diǎn)刻度盤(pán)，也適用于</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">絕緣高阻計(jì)的核對(duì)或</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">檢定，還可以在其它電路中作標(biāo)準(zhǔn)高阻箱使用。</span></span></p><p><strong><span style="font-size:12pt"><span style="font-family:宋體">二、</span></span><span style="font-size:16px">ZX79C＋型兆歐表標(biāo)準(zhǔn)電阻器</span><span style="font-size:12pt"><span style="font-family:宋體">特點(diǎn) </span></span></strong> </p><ul style="list-style-type:square"><li><span style="font-size:12.0000pt"><span style="font-family:宋體">本電阻器</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">使用的組件，全部采用中美合資生產(chǎn)的金屬</span></span></li></ul><p><span style="font-size:12.0000pt"><span style="font-family:宋體">膜電阻，經(jīng)本公司精心篩選后其電阻具有電壓系數(shù)低、溫度系數(shù)小、穩(wěn)定性好的特點(diǎn)。</span></span></p><ul style="list-style-type:square"><li><span style="font-size:12.0000pt"><span style="font-family:宋體">本電阻器在內(nèi)部結(jié)構(gòu)上，采用新設(shè)計(jì)的耐高壓和高</span></span></li></ul><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">絕緣輕型轉(zhuǎn)換開(kāi)關(guān)，</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">使儀器具有換文件清晰，使用方便等特點(diǎn)。</span></span></p><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">3.</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">本電阻器</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">采用</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">高絕緣材料和輕壓力結(jié)構(gòu)，因此具有接</span></span></p><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">觸壓力小、壽命長(zhǎng)、接觸電阻變差小，絕緣電阻高等優(yōu)點(diǎn)。</span></span></p><p style="margin-left:21.0000pt; margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">4.</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">整個(gè)電阻器均裝在金屬殼體內(nèi)，因此具有很好的靜電屏</span></span></p><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">蔽。</span></span></p><p><strong><span style="font-size:12pt"><span style="font-family:宋體">三、</span></span><span style="font-size:16px">ZX79C＋型兆歐表標(biāo)準(zhǔn)電阻器</span><span style="font-size:12pt"><span style="font-family:宋體">主要技術(shù)指標(biāo) </span></span></strong></p><p style="margin-left:21.0000pt; margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">1、可調(diào)范圍：</span></span><span style="font-size:12.0000pt"><span style="font-family:times new roman"> 0~121111</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">.</span></span><span style="font-size:12.0000pt"><span style="font-family:times new roman">110M</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">Ω</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">，小步進(jìn)</span></span><span style="font-size:12.0000pt"><span style="font-family:times new roman">1000</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">Ω。</span></span></p><p style="margin-left:21.0000pt; margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">2、各十進(jìn)盤(pán)的等級(jí)指數(shù)和 </span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">使用電壓或電流</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">（即參考電壓或電流）見(jiàn)表</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">1</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">。</span></span></p><p> <img alt="" src="https://img69.chem17.com/gxhpic_884f2b1889/ab881b8dff67c7d734869e371817ba6db000bb4045f324542ebc9107f3dfbe612d6feb46e0504ee6.png" style="height:154px; width:402px" /></p><table border="1" cellspacing="0" style="border-collapse:collapse; border:none; margin-left:6.7500pt; margin-right:6.7500pt; width:434px"><tbody></tbody></table><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">3、使用電壓或電流改變至</span></span><span style="font-size:12.0000pt"><span style="font-family:times new roman">1/5 </span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">使用電壓或電流時(shí)，由于電壓或電流的變化引起電阻的變差應(yīng)不大于對(duì)應(yīng)的一個(gè)等級(jí)指數(shù)。</span></span></p><p style="margin-left:21.0000pt; margin-right:0.6000pt"><img src="file:///C:UsersADMINI~1AppDataLocalTempksohtml1252wps1.png" style="height:33; width:22" /><span style="font-size:12.0000pt"><span style="font-family:宋體">4、電阻器參考溫度：</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">23 </span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">℃ </span></span></p><p style="margin-right:0.6000pt"> <span style="font-size:12.0000pt"><span style="font-family:宋體">標(biāo)稱使用溫度：</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">23</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">±</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">5</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">℃</span></span></p><ul style="list-style-type:square"><li><span style="font-size:12.0000pt"><span style="font-family:宋體">本電阻器適用于周?chē)諝鉁囟?/span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">23</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">±</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">5</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">℃，相對(duì)濕度≤</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">80%</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">的環(huán)境中使用。</span></span></li><li><span style="font-size:12.0000pt"><span style="font-family:宋體">線路對(duì)外殼的絕緣電阻：≥</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">1</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">×</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">10</span></span><sup><span style="font-size:12.0000pt"><span style="font-family:宋體">12</span></span></sup><span style="font-size:12.0000pt"><span style="font-family:宋體">Ω。</span></span></li><li><span style="font-size:12.0000pt"><span style="font-family:宋體">線路對(duì)外殼的絕緣強(qiáng)度應(yīng)能承受</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">50Hz</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">正弦波電壓</span></span></li></ul><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">8000V</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">，歷時(shí)一分鐘試驗(yàn)不擊穿。</span></span></p><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">8、儀器外形尺寸：</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">490mm</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">×</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">249mm</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">×</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">171mm</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:12.0000pt"><span style="font-family:宋體">9、儀器重量：</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體"> <15kg</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">。</span></span></p><p><strong><span style="font-size:12pt"><span style="font-family:宋體">四、</span></span><span style="font-size:16px">ZX79C＋型兆歐表標(biāo)準(zhǔn)電阻器</span><span style="font-size:12pt"><span style="font-family:宋體">工作原理及結(jié)構(gòu) </span></span></strong></p><p style="margin-right:0.6000pt"> <span style="font-size:12.0000pt"><span style="font-family:宋體">電阻器是根據(jù)電阻串聯(lián)原理設(shè)計(jì)制造的，通過(guò)轉(zhuǎn)動(dòng)十進(jìn)盤(pán)式開(kāi)關(guān)來(lái)進(jìn)行輸出電阻值的變換。電阻器由二個(gè)接線柱和七只十進(jìn)式讀數(shù)盤(pán)組成，其原理線路如下圖所示。</span></span></p><p> <img alt="" src="https://img68.chem17.com/gxhpic_884f2b1889/ab881b8dff67c7d734869e371817ba6d5ac6f3a7b79a14be5886d323f9d81ec231c41905b3db9dfd.png" style="height:302px; width:360px" /></p><p> </p><ul style="list-style-type:square"><li><span style="font-size:12.0000pt"><span style="font-family:宋體">器與被檢表之間的聯(lián)機(jī)用耐高壓的線或粗芯</span></span></li></ul><p style="margin-right:0.6000pt"><span style="font-size:12.0000pt"><span style="font-family:宋體">塑料硬線懸空連接。</span></span></p><p><span style="font-size:12.0000pt"><span style="font-family:宋體">3、連接好接線后，即可按《</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">JJG622</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">—</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">97</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">絕緣電阻表（</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">兆</span></span></p><p><span style="font-size:12.0000pt"><span style="font-family:宋體">歐表</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">）》</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">檢定規(guī)程</span></span><span style="font-size:12.0000pt"><span style="font-family:宋體">的操作步驟和方法進(jìn)行檢定。</span></span></p><p><strong><span style="font-size:12pt"><span style="font-family:宋體">六、注意事項(xiàng) </span></span></strong></p><p style="margin-left:21.0000pt; margin-right:0.6000pt"><span 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