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class="pro_detail_btn"> <a href="/order.html" class="prodtl_btn1">產(chǎn)品咨詢</a><a href="/contact.html" class="prodtl_btn2">聯(lián)系我們</a> </div> </div> <div id="ewidklxnb" class="clear"></div> </div>  </div> <div id="ewidklxnb" class="lhtab"><span id="ewidklxnb" class="on span1">產(chǎn)品詳情</span><span id="ewidklxnb" class="span2">在線留言</span></div> <div id="ewidklxnb" class="page-procon"> <p><span style="color:rgb(118, 118, 118); font-family:simsun; font-size:11.6667px">FZY-3型</span><strong>礦用雜散電流測定儀</strong><span style="color:rgb(118, 118, 118); font-family:simsun; font-size:11.6667px">是一種靈敏度高，多量程保護電路的便攜式整流儀表。其特點是：測量范圍廣，共有二十個量程，能分別測量交直流雜散電壓和雜散電流，本身不需要電源，安全可靠。適宜測試煤礦井下鋼軌、水管、電纜等產(chǎn)生的電流及電壓，預(yù)防雜散電流放電引起的電LEI管早爆及其它燃爆事故，使礦內(nèi)火源降至zui低限度。</span></p><p> <strong>一、礦用雜散電流測試儀用途</strong><br />FZY-3型礦用雜散電流測試儀是一種靈敏度高，多量程保護電路的便攜式整流儀表。其特點是：測量范圍廣，共有二十個量程，能分別測量交直流雜散電壓和雜散電流，本身不需要電源，安全可靠。適宜測試煤礦井下鋼軌、水管、電纜等產(chǎn)生的電流及電壓，預(yù)防雜散電流放電引起的電LEI</p><p>管早爆及其它燃爆事故，使礦內(nèi)火源降至zui低限度。</p><p><strong>二、礦用雜散電流測試儀性能</strong><br />儀表測量范圍及準確度等級</p><table border="1" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border-spacing:0px; color:rgb(118, 118, 118); font-family:simsun; font-size:11.6667px; height:174px; line-height:22.9948px; padding-left:0px; position:static; width:498px"><tbody><tr><td colspan="2"><span style="font-family:宋體">測</span> <span style="font-family:宋體">量</span> <span style="font-family:宋體">范</span> <span style="font-family:宋體">圍</span></td><td><span style="font-family:宋體">測量精度</span></td><td><span style="font-family:宋體">備</span> <span style="font-family:宋體">注</span></td></tr><tr><td><span style="font-family:宋體">電流檔</span></td><td><p>0-50mA-250mA<br />-1A-5A-10A</p></td><td rowspan="2"><p><span style="font-family:宋體">交流±5％<br />直流±2.5％</span></p></td><td rowspan="2"><p><span style="font-family:宋體">使用前必須將指針撥至零位置，即調(diào)零</span></p></td></tr><tr><td><span style="font-family:宋體">電壓檔</span></td><td><p>0-0.2V-1V<br />-4V-20V-40V</p></td></tr></tbody></table><p> </p><p><strong>三、礦用雜散電流測試儀使用方法及注意事項</strong><br />1、測量前，將測試棒接線分別旋緊于兩接線柱中，調(diào)節(jié)表頭指針至零刻度線。<br />2、將與接線柱相接的測試棒分別置于被測的兩點（如：鋼軌、水管、電纜外皮、煤炭、大地等），兩測點應(yīng)在不同的導(dǎo)體上,測點距離約為2米,正常每隔50-100M測一次,或根據(jù)需要臨時確定測試點。將轉(zhuǎn)換開關(guān)置于適當檔，則表頭指示值,經(jīng)換算得到相應(yīng)的電流值。<br />3、測量時，測量探針的硬質(zhì)合金*與被測物接觸良好，儀表應(yīng)水平放置，以保證讀數(shù)準確。<br />4、當一處測量不到交流雜散電流時，還應(yīng)測試直流雜散電流，反之亦然。<br />5、測量雜散電壓值時，其檔位是: 50mA對應(yīng)0.2V、250mA對應(yīng)1V、1A對應(yīng)4V、5A對應(yīng)20V、10A對應(yīng)40V。（即電流值乘4就是電壓值）<br />6、當未知雜散電流大小時，應(yīng)先置于量程zui大擋，然后逐步減少，直至適當測量檔。<br />7、當被測電流大于5A時，儀器只宜進行短時測量，當被測電流大于10A時，儀器只宜進行瞬時測量。以免大電流燒毀元件及儀表。<br />8、測直流雜散電流時,如表頭指針反向偏轉(zhuǎn),對換表筆即可<br />9、儀器不用時應(yīng)置于“關(guān)"位置。</p><p><strong>四、礦用雜散電流測定儀產(chǎn)品成套性</strong><br />1、主機一臺<br />2、測試表筆一副<br />3、產(chǎn)品說明書一份<br 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