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美***OMEGA歐米茄LV171_LV172光電液位開(kāi)關(guān)

緊密配合間隙空間

不受蒸汽影響；即使在高濃度時(shí)

易于拆卸、清潔和重新安裝

無(wú)活動(dòng)部件

美國OMEGA歐米茄LV171_LV172光電液位開(kāi)關(guān)

緊密配合間隙空間

不受蒸汽影響；即使在高濃度時(shí)

易于拆卸、清潔和重新安裝

無(wú)活動(dòng)部件

LV170光學(xué)液體傳感器準確檢測玻璃纖維雙壁罐、安全殼集水坑和雙壁管道中是否存在液體。內置電子開(kāi)關(guān)確保了其長(cháng)期使用壽命的可靠性。這種可重復使用的傳感器很容易適應小的間隙空間，并感知液態(tài)烴或水。該裝置不受碳氫化合物蒸汽的影響，從而大大降低了誤報警的風(fēng)險。LV170傳感器易于在觸發(fā)報警條件或進(jìn)行維護后拆卸、清潔和重新安裝。LV170光電傳感器包含一個(gè)紅外LED和一個(gè)光接收器。來(lái)自L(fǎng)ED的連續光被導入形成傳感器尖端的棱鏡。在沒(méi)有液體的情況下，LED發(fā)出的光在棱鏡內反射到接收器。當上升的液體浸入棱鏡時(shí)，光線(xiàn)折射到液體中，只留下很少或沒(méi)有光線(xiàn)到達接收器。接收器感應到這種變化后，啟動(dòng)裝置內的電子開(kāi)關(guān)，以操作外部報警或控制電路。

美***OMEGA歐米茄LV171_LV172光電液位開(kāi)關(guān)

The LV170 optical liquid sensor accurately detects the presence of liquid in fiberglass double-wall tanks, containment sumps and double-wall pipes. Built-in electronic switching ensures dependability throughout its long service life. This reusable sensor easily fits small, interstitial spaces and senses liquid hydrocarbons or water. The unit is unaffected by hydrocarbon vapors, thereby greatly reducing the risk of false alarms. The LV170 sensor is easy to remove, clean and reinstall after an alarm condition is triggered, or for maintenance. The LV170 electro-optical sensor contains an infrared LED and a light receiver. Continuous light from the LED is directed into a prism which forms the tip of the sensor. With no liquid present, light from the LED is reflected within the prism to the receiver. When rising liquid immerses the prism, the light is refracted out into the liquid, leaving little or no light to reach the receiver. Sensing this change, the receiver actuates electronic switching within the unit to operate an external alarm or control circuit.