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href="/article.html">技術文章</a> > 防爆聲級計的使用原來這么簡單</div></div> <h1 class="tittle">防爆聲級計的使用原來這么簡單</h1> <div class="wz_time">發布日期：2022-05-05 瀏覽次數：149 </div> <div class="nr"> 　　防爆聲級計是數字化、模塊化的多功能聲級儀。采用數字信號處理技術開發、模塊化設計，具有多功能、高性能、小型、省電等優點?？蓮V泛應用于各種儀器、車輛、船舶、電器等工業噪聲測量，以及環境噪聲、勞動保護、工業衛生的測量。該產品具有較高級防爆等級，溫度組達T4，可用于礦井外爆炸性氣體環境。<div>　　由傳聲器將聲音轉換成電信號，用前置放大器轉換阻抗，使傳聲器和衰減器匹配。放大器對輸出信號進行計數并加到網絡中，對信號進行頻率計權重(或外置濾波器)，然后經過衰減器和放大器將信號放大到一定振幅，發送到有效值檢波器)或外置電平記錄儀)，在指示頭中賦予噪聲電平的數值。<br /> </div><div>　　防爆聲級計的使用方法：<br /> </div><div>　　1、打開電源開關，根據被測聲音的大小將量程開關調到合適的量程。</div><div>　　2、根據需要選擇測量模式(A/C)、測量單位(分貝或響度單位)。</div><div>　　3、測量實時水平選擇“FAST(快)”；測量平均水平，然后選擇“慢”。</div><div>　　4、夜間測量可以點亮顯示器背光。</div><div>　　5、顯示器上顯示“UNDER”或“OVER”時，將量程開關向上或向下移動，“UNDER”或“OVER”標志未消失，表示被測聲級超出測量范圍。</div><div>　　6、調整聲級計的量程后，可以從顯示屏上讀取測量結果。按下“MAX”鍵，可以讀取聲級的最大值。</div><div>　　7、測量結束后，關閉電源開關。長時間不使用該設備時，請務必取出電池。</div><div>　　防爆電器的質量保證與一般電器有很大不同。防爆電氣設備在制造過程中不僅要保證防爆安全質量，而且必須選型、安裝、使用、維護得當才能真正達到防爆目的，必須根據使用場所情況選擇適合防爆等級的設備或以上設備。</div><p align="center"><img 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