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<div>　　揮發(fā)性有機(jī)物檢測儀采用了光離子化檢測器，提高了檢測精度和響應(yīng)時(shí)間，檢測范圍達(dá)到1ppb~10000ppm，通過無線模塊可以實(shí)現(xiàn)與控制臺的無線數(shù)據(jù)傳輸和遠(yuǎn)程監(jiān)控?？蓮V泛應(yīng)用在應(yīng)急救援、工業(yè)安全、石油石化等行業(yè)。</div><div>　　首先咱們來了解下?lián)]發(fā)性有機(jī)物檢測儀所具備的特點(diǎn)：</div><div>　　1、漢顯觸摸屏、仿手機(jī)界面，操作簡單。可數(shù)字化設(shè)定采樣流量，具有恒流采樣功能。</div><div>　　2、采用閉環(huán)控制，流量不受電壓波動和氣阻變化的影響，解決低流量恒流采樣難題。</div><div>　　3、儀器可自動測量環(huán)境溫度、大氣壓、計(jì)前壓力、采樣流量，并自動換算標(biāo)況體積。</div><div>　　4、可自動存儲100組采樣數(shù)據(jù)，包括采樣日期時(shí)間、環(huán)境溫度、大氣壓、標(biāo)況體積、吸附管編號、采樣流量等。</div><div>　　5、存儲數(shù)據(jù)可用數(shù)據(jù)線導(dǎo)出，接口為手機(jī)通用類型。</div><div>　　6、過載保護(hù):當(dāng)采樣流量與設(shè)定流量偏差超過±10%，且持續(xù)時(shí)間60秒時(shí)，采樣器停止工作，提示故障原因，保留采樣數(shù)據(jù)。</div><div>　　揮發(fā)性有機(jī)物檢測儀主要測量原理是由PID傳感器內(nèi)部有一個能發(fā)出特定波長的紫外光源，該紫外光束射入-一個測試腔，當(dāng)被測揮發(fā)性有機(jī)氣體進(jìn)入測試腔時(shí)，受到紫外光的轟擊而發(fā)生電離，分裂成帶正負(fù)電性的二個基團(tuán)。在測試腔的出口處，裝有--對施加了適當(dāng)工作電壓的電極，受到電極電壓的吸引，帶電基團(tuán)分別趨向相應(yīng)電極而形成正比于VOCs濃度的電流。通過測量該電流大小，確定VOCs濃度。分裂的基團(tuán)經(jīng)過電極后又重新復(fù)合，被抽出測試腔。</div><div>　　希望上述內(nèi)容能夠幫助大家更好的了解本檢測儀，同時(shí)也歡迎大家持續(xù)關(guān)注本站，小編會定期為大家?guī)砀嗟南嚓P(guān)產(chǎn)品知識介紹。</div> 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