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/>當前位置：<a href="/">首頁</a> > <a href="/article.html">技術文章</a> > 規范操作氣體泄漏檢測報警儀使其發揮實效</div> </div> <div id="np75v5h" class="ny_content_bd"> <div id="7zn7pn7" class="w1200 clear ny_newsdetail"> <h1 class="ny_newsdetail_title">規范操作氣體泄漏檢測報警儀使其發揮實效</h1> <div id="b7xxjdx" class="ny_newsdetail_tips">更新時間：2022-06-17 點擊次數：672</div> <div id="9llr7bz" class="ny_newsdetail_con"> <div>　　<strong>氣體泄漏檢測報警儀</strong>檢測超聲波通常是指頻率高過20KHz的波段，而人耳所能接收到的上限值為16.5KHZ，利用這一特性，超聲波則被較好的應用到了工業檢測中。<br /> </div><div>　　氣體泄漏檢測報警儀的操作方法：<br /> </div><div>　　(1)使用檢測器時，應注意危險場所的級別要與儀器的防爆標志相適應。檢測器的防爆類別、級別、組別必須符合現場爆炸性氣體混合物的類別、級別、組別的要求。不得在超過防爆標志所允許的環境中使用，否則起不到現場防爆作用。<br /> </div><div>　　(2)檢測器不能在氣體濃度高于爆炸下限的環境條件下使用。因為催化燃燒型檢測器使用的檢測元件是載體催化活性元件，檢測可燃氣體濃度高于爆炸下限的濃度時，將燒壞檢測器內的檢測元件。<br /> </div><div>　　(3)儀器投入運行前，要進行檢測器工作電流(電壓)的調整。調整后的電流(電壓)值應在儀器使用說明書規定的范圍內，以保證檢測器的正常工作。此電流(電壓)調整后，除正常檢修外，一般無需再動。<br /> </div><div>　　(4)檢測器不能在含硫、砷、磷、鹵素化合物的場所中使用。因為它們會使檢測器中的檢測元件中毒，使檢測器靈敏度下降，使用壽命縮短，嚴重的還會使檢測器失效。要對含有上述元素化合物的可燃氣體進行檢測應選用抗毒性催化燃燒型檢測器或半導體型檢測器。由于催化燃燒型檢測器對氫氣有引爆性，因此對于氫氣的檢測應選用電化學型或半導體型檢測器。<br /> </div><div>　　(5)注意不要使檢測器意外進水或受水蒸氣噴射。因為檢測器中的檢測元件進水后會影響其性能，如果意外進水，要重新更換檢測器內的檢測元件，安裝于室外的檢測器則應裝有防雨罩。<br /> </div><div>　　(6)要正確設定報警器的報警值。一般情況下，報警器顯示的可燃氣體的濃度范圍是(0～100)%LEL。報警設定值一般在(20～30)%LEL處。具有二級報警的儀器，一級報警(高限)設定值應小于或等于20%LEL；二級報警(高高限)設定值應小于或等于50%LEL。<br /> </div><div>　　(7)應按檢定周期對儀器進行檢定，平時應定期檢查儀器的報警功能。對于有試驗按鈕的儀器，啟動報警器的試驗按鈕，即可檢查報警器的報警功能是否正常。</div> </div> <div id="rvf77tz" class="ny_PrevNext"> <ul> <li>上一篇：<a href="/wote18-Article-3020530/">不會使用現場檢測設備？點進來照著做</a></li> <li>下一篇：<a href="/wote18-Article-3054921/">如何正確處理懸臂攪拌器的常見故障？</a></li> </ul> </div> </div> </div> </div>   <div id="p7lljrx" class="h_foot"> <div id="nhfd77f" class="pz_down"> <div id="7f7xtb7" class="w1200 clear"> <div id="d75jfbx" class="footT"> <div id="f77rd77" class="footAddr"> <div id="tl77dpj" class="footTit">南通沃特環保科技有限公司</div> <div id="7nz7dlf" 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