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class="inside_rnewtime">點擊次數：673 發布時間：2020-03-27</div> <div class="inside_rnewcon"> <div>　　為避免<strong><a href="http://www.renoscrapbooking.com/Products-18279025.html" target="_blank">德國HEYL在線硅酸鹽報警儀</a></strong>探測故障，首先，在使用過程中必須可靠接地，這樣才能消除電磁干擾，保證電壓正常運行。其次，要設在設備易于泄露可體的附近，這樣才能使可體充分擴散到氣體檢測儀附近，進而保證探測結果的準確性。后還需要注意的是，施工完后要對氣體檢測儀進行調試，以保證可體報警器處于正常工作狀態。<br /> </div><div>　　此外，許多德國HEYL在線硅酸鹽報警儀安裝在室外，工作環境較為惡劣，日常維護保養不善也會導致其探測出現故障。因而定期對氣體檢測儀進行清洗、保養也是防止其發生探測故障的一項重要措施。<br /> </div><div>　　隨著國家經濟建設的快速發展，作為化工生產的原料也隨之增加，其中由危險氣體泄露引發的傷害更為嚴重，而德國HEYL在線硅酸鹽報警儀的出現可以避免這樣事故的出現，那么大家對電路設計及其總體要求就沒有很好奇嗎?<br /> </div><div>　　<strong>德國HEYL在線硅酸鹽報警儀</strong>的電路設計：<br /> </div><div>　　1、電源電路此單元電路的任務是通過變壓器把220V交流電轉變為9V交流電，再通過單向橋式全波整流電路將交流電轉變為直流電，此電路為后級電路提供直流輸入電壓。<br /> </div><div>　　2、穩壓電路此單元電路的任務是把電源電路輸入的直流電進行穩壓，由于氣敏傳感器燈絲加熱電壓要求穩定，故采用穩壓塊7805進行穩壓。<br /> </div><div>　　3、氣敏傳感電路此單元電路的任務是探測氣體煙霧的存在，當有氣體或煙霧時，A-B極間的阻值降低，調節后級電路電位上升。本電路的主體元件是氣敏傳感器。<br /> </div><div>　　4、觸發、報警音響電路此單元電路的主要任務是當有氣體或煙霧時起到報警作用。當有氣體或煙霧時，4腳電位上升到使起振，通過揚聲器起到報警作用。其核心元件是組成的多諧振蕩報警電路。<br /> </div><div>　　5、多諧振蕩電路多諧振蕩器是一種自激振蕩電路，不需要外加輸入信號，就可以自動地產生出矩形脈沖。</div> </div> <div class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-630553.html">小型河涌水質自動監測站對于站房建設需考慮哪些因素</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-624214.html">全新一代全光譜︱免試劑無二次污染的水環境在線監測理想之選</a></b></p> <span><a href="/article.html">返回列表>></a></span> </div> </div> </div> </div> </div>   <div class="footer clearfix"> <div class="footer_wrapper clearfix"> <div class="footer_cen fl"> <span style="font-size:14px; color:#fff;">工作時間</span><br/> 為了避免不必要的等待，敬請注意我們的工作時間。以下是我們的正常工作時間，中國大陸法定節假日除外。<br /> </div> <div class="footer_cen fl"> <span style="font-size:14px; color:#fff;">聯系方式</span><br/> 地址：廣州市黃埔區開源大道11號B10棟606室<br /> 聯系人：鄭先生<br /> 電話(傳真同號)：86-020-28928806<br /> 聯系QQ：149073506<br /> 郵箱：149073506@qq.com </div> <div class="footer_cen fl"> <span 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