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0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">高絕緣電阻測(cè)量?jī)x 測(cè)量方法</span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">高絕緣電阻測(cè)量?jī)x</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">是ZC-90家族中的新產(chǎn)品，是一款高性能的數(shù)字式超高阻與微電流綜合測(cè)量?jī)x，采用了*</span>的微電流測(cè)量器件,其特點(diǎn)為：</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">（1）電阻測(cè)量范圍高達(dá)0</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">2×10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">17</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω（直接測(cè)量，如采用電壓-電流法推算，則可測(cè)量超過10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">18</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω電阻），是目前超高阻測(cè)量能力zui強(qiáng)的數(shù)字式儀表，ZC-90G是取代ZC36、ZC46等指針式高阻計(jì)進(jìn)行絕緣材料體積電阻率與表面電阻率測(cè)量的zuijA</span></span>儀表。zui高分辨力為100Ω。</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">（2）全系列七種（10，25，50，100，250，500，1000V）輸出電壓，適用于電線電纜、絕緣材料、電子元器件、防靜電工程等一切領(lǐng)域作超高阻、微電導(dǎo)測(cè)量。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">（3）微電流測(cè)量功能，電流測(cè)量范圍：0.1fA (10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">-16</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">A)</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">199.9</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">μ</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">A, 是微電流測(cè)量靈敏度zui高、分辨力zui強(qiáng)的數(shù)字式儀表，適用于半導(dǎo)體器件測(cè)試、電子元器件**、光電測(cè)量、生物電流測(cè)量、原子能研究、科學(xué)實(shí)驗(yàn)等一切微電流測(cè)量領(lǐng)域。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">（4）內(nèi)置高性能可充電電池，免除了更換電池的麻煩，節(jié)省了更換電池的開支。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">（5）人性化的操作界面。大屏幕、高亮度的液晶顯示屏，除了測(cè)量結(jié)果顯示外，還有測(cè)量功能顯示、輸出電壓顯示、測(cè)量單位顯示、倍率方次顯示、電池低電壓告警顯示、誤操作告警顯示等，所有信息，一目了然。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">高絕緣電阻測(cè)量使用方法</span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"><img src="https://img69.chem17.com/9/20230704/638240602531269963156.jpg" style="width:800px;"/><br style="box-sizing: border-box;"/></span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.1 儀表與被測(cè)器件的連接</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">在開始操作前, 儀表電源應(yīng)處于關(guān)閉位置, 在前一次測(cè)量結(jié)束后，應(yīng)經(jīng)過30秒左右的內(nèi)部放電時(shí)間, 以確保操作人員免受高壓電擊。</span></span></span> </p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.1.1將被測(cè)器件的兩端分別與儀表的高壓輸出端與測(cè)量輸入端（黑線紅夾子）相連，保護(hù)環(huán)與屏蔽端（黑線黑夾子）相連，如被測(cè)器件無保護(hù)環(huán)則屏蔽端空置。</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">注意：測(cè)量輸入端（黑線紅夾子）除了與被測(cè)器件連接外，必須wan全</span></span></span>懸空，與其他任何物體的接觸將會(huì)嚴(yán)重影響高阻測(cè)量的準(zhǔn)確性。</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.1.2單芯電線絕緣電阻測(cè)量: 將被測(cè)電線放入恒溫水箱中（電線兩頭放在水箱外），儀表高壓輸出端通過金屬導(dǎo)體與水接通，測(cè)量輸入端（紅）與芯線相連，屏蔽端（黑）空置不用，見圖7。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.1.3多芯及有金屬外套的電纜絕緣電阻測(cè)量：測(cè)量輸入端（紅）與被測(cè)芯線相連，將其它芯線與外套 ( 電纜屏蔽層 ) 連在一起后與儀表的高壓端連接，屏蔽端（黑）空置不用，見圖8。 </span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.1.4 防靜電工程表面電阻測(cè)量: 與防靜電工程電阻測(cè)量標(biāo)準(zhǔn)電極配套使用（選購(gòu)件），將儀表的高壓輸出端與測(cè)量輸入端分別與兩個(gè)電極相連接（屏蔽端空置不用），剝?nèi)ル姌O下表面黑色導(dǎo)電膜上的保護(hù)膜(黃色)后，將兩個(gè)電極相隔一定距離置于被測(cè)物體表面（如測(cè)量防靜電地板，相隔距離一般為30cm），見圖9。</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">注意：測(cè)量過程中不得接觸電極的金屬面，以免受到高壓電擊。</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">注意保證導(dǎo)電膜表面清潔平整，測(cè)量完畢應(yīng)將保護(hù)膜貼上，然后放在光滑平整的表面上，如有臟污，切忌利器檫刮，可以用普通封箱膠帶在導(dǎo)電膜表面粘吸，將臟物粘去。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> 如果被測(cè)物體的表面不是平面，則可用導(dǎo)電膠在被測(cè)物體表面的相應(yīng)位置涂上兩行平行的膠條，然后將儀表的高壓輸出端與測(cè)量輸入端分別與兩個(gè)導(dǎo)電膠條相連接（屏蔽端空置不用）。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.2 打開電源開關(guān)。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.3將倍率（量程）開關(guān)置于zui低檔位，儀表校零（見4.3.3節(jié)）。</span></span> </p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">ZC-90、 90A、90D、 90E、90F、90G的zui低倍率為×10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">5</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，ZC-90B、 90C為×10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">電阻測(cè)量必須從zui低量程開始，</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">這是因?yàn)楸粶y(cè)物體可能有很大的分布電容，由此導(dǎo)致的充電電流可能會(huì)在開始測(cè)量的瞬間對(duì)儀表高靈敏的輸入端造成危害。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> <img alt="" src="https://img67.chem17.com/9/20170816/636384698799276258518.png" style="box-sizing: border-box; vertical-align: middle; border: 0px; max-width: 100%; height: 218px; margin: 0px; padding: 0px; width: 589px;"/> <span style="box-sizing: border-box; font-family: 幼圓; font-size: 16px;"> 圖7 </span><span style="box-sizing: border-box; font-family: 幼圓; font-size: 16px;">測(cè)量</span> <img alt="" src="https://img61.chem17.com/9/20170816/636384699437317379982.png" style="box-sizing: border-box; vertical-align: middle; border: 0px; max-width: 100%; height: 218px; margin: 0px; padding: 0px; width: 568px;"/> <span style="box-sizing: border-box; font-family: 幼圓; font-size: 12pt; line-height: 1.6em; text-align: center;">圖8 多芯電纜測(cè)量</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><img alt="" src="https://img67.chem17.com/9/20170816/636384700883127918867.png" style="box-sizing: border-box; vertical-align: middle; border: 0px; max-width: 100%; height: 188px; margin: 0px; padding: 0px; width: 589px;"/></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255); text-align: center;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> 圖9 防靜電工程表面電阻測(cè)量</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">其中：</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">1. 儀表高壓輸出端 10. 被測(cè)單芯電纜</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">2. 儀表測(cè)量輸入端 11. 被測(cè)芯線</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">3. 屏蔽端夾子 (黑線黑夾子) 12. 其他芯線</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4. 輸入端夾子 (黑線紅夾子) 13. 連接線</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">5. 高壓端夾子 (紅線紅夾子，90G為黑色屏蔽線) 14. 電纜屏蔽層（或金屬外套）</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">6. 連接線 15. 被測(cè)多芯電纜</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">7. 金屬導(dǎo)體 16. 防靜電工程電阻測(cè)量標(biāo)準(zhǔn)電極</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">8. 恒溫水浴箱 (圖中未包括恒溫部分) 17. 導(dǎo)電膜</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">9. 水 18. 被測(cè)材料</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> </p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> </p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> </p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.4 選擇合適的測(cè)量電壓</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> 測(cè)量電壓的選擇是由被測(cè)物體的特性以及測(cè)量本身的技術(shù)規(guī)范而確定的, 不同的測(cè)量電壓可能導(dǎo)致不同的測(cè)量結(jié)果，這是因?yàn)榻^緣體的導(dǎo)電機(jī)理與金屬的導(dǎo)電機(jī)理有本質(zhì)上的不同，因此，除了特制的標(biāo)準(zhǔn)電阻外，一般的被測(cè)對(duì)象都有較高的負(fù)電壓系數(shù)，即測(cè)量電壓越高，電阻讀數(shù)越小。將高壓選擇開關(guān)撥至相應(yīng)的電壓檔位就可以獲得所需的測(cè)量電壓。</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">注意：由于儀表內(nèi)部高壓電容的儲(chǔ)能較大，內(nèi)部放電時(shí)間要30秒左右，因此從一種測(cè)量電壓時(shí)改變?yōu)榱硪环N測(cè)量電壓時(shí)，功能開關(guān)必須先放在“放電調(diào)零"檔位，30秒后才能開始新選擇的電壓的測(cè)量，否則測(cè)量電壓可能大幅度高于額定值，損壞被測(cè)器件，在電壓未到達(dá)額定值之前，儀表讀數(shù)也不正確。</span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.5倍率（量程）選擇</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> （ZC-90，90A，90B，90C）將功能開關(guān)（16）由“調(diào)零"檔經(jīng)“放電"、“充電"檔撥至“測(cè)量"檔位, 測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開始；</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> ZC-90（新版）、90D、90E，90F將將高壓（校零）選擇開關(guān)（15）由“放電校零"檔經(jīng)“充電"檔撥至所選的電壓檔位，測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開始；</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> ZC-90G將“電池</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">測(cè)量"選擇開關(guān)（20）撥至“測(cè)量"檔位，將 “電流</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">電阻"選擇開關(guān)（21）撥至“電阻"檔位，此時(shí)顯示屏上出現(xiàn)“R（Ω）"字符，說明儀表進(jìn)入電阻測(cè)量狀態(tài)，將高壓（校零）選擇開關(guān)（15）由“000" （校零、放電）檔撥至所選的電壓檔位，測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開始。</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> 注意觀察儀表示值，如顯示屏出現(xiàn)“1</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">"（單duo一</span></span>個(gè)“1"字后面沒讀數(shù)）說明儀表量程過小。逐步將倍率（量程）開關(guān)按順時(shí)針方向旋轉(zhuǎn)，當(dāng)儀表出現(xiàn)讀數(shù)后應(yīng)立即停止轉(zhuǎn)動(dòng)。通常, <span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">儀表示值應(yīng)在100個(gè)字至1999個(gè)字之間（忽略小數(shù)點(diǎn)）</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">，如果示值小于100個(gè)字，可以將倍率（量程）開關(guān)按逆時(shí)針方向旋轉(zhuǎn)一檔, 以求得zuiJIA</span></span>的準(zhǔn)確度與分辨力。如顯示屏上出現(xiàn)“<span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">:</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">"符號(hào)（ZC-90，90A，90B，90C）或“×"符號(hào)（ZC-90新、90D、90E、90F、90G）及報(bào)警蜂鳴聲（ZC-90G），說明儀表處于量程過大狀態(tài)，應(yīng)迅速將量程（倍率）開關(guān)逆時(shí)針方向旋轉(zhuǎn)，如在zui低倍率檔仍出現(xiàn)“ </span></span>: <span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">"或“×"符號(hào)，說明被測(cè)器件短路，請(qǐng)速將開關(guān)撥至“校零"</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">“放電校零"或“.000"</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">檔位，斷開電阻測(cè)量回路。注意：</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">出現(xiàn)</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">“ </span></span>: <span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">"</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">或“×"符號(hào)時(shí)，儀表讀數(shù)無效。儀表輸入端受到過電流的沖擊，零位可能暫時(shí)偏移，通常放置一段時(shí)間可以恢復(fù)。</span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">被測(cè)對(duì)象的絕緣電阻 = 儀表示值×倍率 </span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.6 被測(cè)器件放電</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> <span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">測(cè)量結(jié)束后，（ZC-90，90A，90B，90C）將功能開關(guān)（16）撥至“放電"或“校零"位置；（</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">ZC-90新、90D、</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">90E、90F、90G）將開關(guān)（15）撥至“.000"檔位，斷開測(cè)量電壓，并接通放電回路，經(jīng)過15</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">20 秒，被測(cè)器件充分放電后，操作人員方可接觸高壓端與測(cè)量端。 </span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.4.7 電線電纜每公里長(zhǎng)度絕緣電阻按下式換算 </span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> <span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">R</span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; bottom: -0.25em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">L</span></span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> = R</span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; bottom: -0.25em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">X </span></span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">L</span></span></em></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">式中:</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;"> R</span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; bottom: -0.25em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">L</span></span></span></em></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">每公里長(zhǎng)度絕緣電阻，MΩ</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">·</span></span></span> <span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">km ; </span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">R</span></span></em></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; bottom: -0.25em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">X</span></span></span></em></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">試樣絕緣電阻，MΩ；</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><em style="box-sizing: border-box;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">L</span></span></em></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">—</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">試樣長(zhǎng)度，km</span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">4.5 </span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">電阻測(cè)量各量程有效測(cè)量范圍及zui高分辨力</span></span></span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; padding: 0px; color: rgb(51, 51, 51); font-family: 宋體, Tahoma, Arial; background-color: rgb(255, 255, 255);"> <span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">各量程范圍除了與倍率有關(guān)以外還與不同測(cè)量電壓時(shí)小數(shù)點(diǎn)的位置有關(guān)，</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">如小數(shù)點(diǎn)在zui高位，zuiJIA</span></span>測(cè)量范圍為（0.100-1.999）<span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">倍率，例：被測(cè)電阻在1.5</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">9</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω左右，倍率應(yīng)選10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">9</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，電阻在3</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">9</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，倍率應(yīng)選10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，儀表示值為0.300</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω；如小數(shù)點(diǎn)在第2位，zuiJIA</span></span>測(cè)量范圍為（1.00-19.99）<span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">倍率；如小數(shù)點(diǎn)在第3位，zuiJIA</span></span>測(cè)量范圍為（10.0-199.9）<span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">倍率，例：被測(cè)電阻在1.5</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">9</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，倍率可選10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">8</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，儀表示值為15.0</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">8</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，倍率也可選10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">8</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω，儀表示值為150.0</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: "times new roman";">×</span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">10</span></span><span style="box-sizing: border-box; vertical-align: baseline; position: relative; font-size: 12px; line-height: 0; top: -0.5em;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">7</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">Ω,分辨率更高；除了zui低量程外，儀表的其他量程并非從0開始，下列各表規(guī)定了各量程的有效測(cè)量范圍，及各測(cè)量電壓下的zui高分辨力, 注意：當(dāng)儀表讀數(shù)小于表中所列數(shù)值時(shí)，</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">只要顯示屏上不出現(xiàn)</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">“ </span></span>: <span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">"</span></span><span style="box-sizing: border-box; font-weight: 700; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 16px; line-height: 30px; font-family: 微軟雅黑;"><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">或“×"符號(hào)，讀數(shù)仍然有效</span></span></span><span style="box-sizing: border-box; font-size: 12pt;"><span style="box-sizing: border-box; font-family: 幼圓;">。</span></span></p><p><br/></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3403362.html">KD智能直流高壓發(fā)生器講解</a></p> <p>下一篇：<a href="/Article-3401465.html">本篇讓你對(duì)鉗形接地電阻測(cè)試儀有更多的了解</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div 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href="/SonList-1324343.html">> 耐電壓試驗(yàn)儀</a></li> </ul> </div> </li> <li><a href="/ParentList-1324322.html" onmouseover="showsubmenu('直流高壓發(fā)生器')" class="yj">直流高壓發(fā)生器</a> <div class="iqaqewgi6e" id="submenu_直流高壓發(fā)生器" style="display:none"> <ul> <li><a href="/SonList-1324326.html">> 直流高壓發(fā)生器</a></li> <li><a href="/SonList-1324324.html">> ZGF直流高壓發(fā)生器</a></li> </ul> </div> </li> <li><a href="/ParentList-1324311.html" onmouseover="showsubmenu('電工電修工具設(shè)備總匯')" class="yj">電工電修工具設(shè)備總匯</a> <div class="iqaqewgi6e" id="submenu_電工電修工具設(shè)備總匯" style="display:none"> <ul> <li><a href="/SonList-1324320.html">> 電動(dòng)切紙機(jī)</a></li> <li><a href="/SonList-1324319.html">> 電工絕緣材料</a></li> <li><a href="/SonList-1324318.html">> 電機(jī)槽楔</a></li> <li><a href="/SonList-1324316.html">> 橡膠錘、電工鑿</a></li> <li><a href="/SonList-1324314.html">> 不銹鋼通條、通刷</a></li> <li><a href="/SonList-1324313.html">> 不銹鋼劃線板</a></li> <li><a href="/SonList-1324312.html">> 不銹鋼壓線板</a></li> </ul> </div> </li> <li><a href="/ParentList-1324298.html" onmouseover="showsubmenu('漆包線電動(dòng)刮漆器總匯')" class="yj">漆包線電動(dòng)刮漆器總匯</a> <div class="iqaqewgi6e" id="submenu_漆包線電動(dòng)刮漆器總匯" style="display:none"> <ul> <li><a href="/SonList-1324300.html">> 漆包線電動(dòng)刮漆器</a></li> </ul> </div> </li> <li><a href="/ParentList-1324280.html" onmouseover="showsubmenu('電機(jī)萬用繞線模總匯')" class="yj">電機(jī)萬用繞線?？倕R</a> <div class="iqaqewgi6e" id="submenu_電機(jī)萬用繞線模總匯" style="display:none"> <ul> <li><a href="/SonList-1324281.html">> 電機(jī)萬用繞線模</a></li> </ul> </div> </li> <li><a href="/ParentList-1324244.html" onmouseover="showsubmenu('拆線機(jī)、烘箱總匯')" class="yj">拆線機(jī)、烘箱總匯</a> <div class="iqaqewgi6e" id="submenu_拆線機(jī)、烘箱總匯" style="display:none"> <ul> <li><a href="/SonList-1324253.html">> 電機(jī)鼠籠烘烤器</a></li> <li><a href="/SonList-1324252.html">> 電熱恒溫鼓風(fēng)干燥箱</a></li> <li><a href="/SonList-1324250.html">> 電機(jī)浸漆烘干機(jī)</a></li> <li><a href="/SonList-1324249.html">> 電機(jī)割線機(jī)</a></li> <li><a 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href="/SonList-1322990.html">> 機(jī)械/液壓防滑拔輪器</a></li> <li><a href="/SonList-1322989.html">> 車載式液壓拉馬</a></li> <li><a href="/SonList-1322988.html">> 分離式液壓拉馬</a></li> <li><a href="/SonList-1322987.html">> 分體式液壓拉馬</a></li> <li><a href="/SonList-1322986.html">> 一體式液壓拉馬</a></li> <li><a href="/SonList-1322985.html">> 螺旋拉力機(jī)/合攏器</a></li> </ul> </div> </li> <li><a href="/ParentList-1390308.html" onmouseover="showsubmenu('漏電流測(cè)試儀')" class="yj">漏電流測(cè)試儀</a> <div class="iqaqewgi6e" id="submenu_漏電流測(cè)試儀" style="display:none"> <ul> <li><a href="/SonList-1390309.html">> 漏電流測(cè)試儀</a></li> </ul> </div> </li> <li><a href="/ParentList-1390431.html" onmouseover="showsubmenu('直流低電阻測(cè)試儀')" class="yj">直流低電阻測(cè)試儀</a> <div class="iqaqewgi6e" id="submenu_直流低電阻測(cè)試儀" style="display:none"> <ul> <li><a href="/SonList-1390432.html">> 直流低電阻測(cè)試儀</a></li> </ul> </div> </li> <li><a href="/ParentList-1412169.html" onmouseover="showsubmenu('手表式近電報(bào)警器')" class="yj">手表式近電報(bào)警器</a> <div 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