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美***OMEGA歐米茄LV171_LV172光電液位開關(guān)

緊密配合間隙空間

不受蒸汽影響；即使在高濃度時

易于拆卸、清潔和重新安裝

無活動部件

美國OMEGA歐米茄LV171_LV172光電液位開關(guān)

緊密配合間隙空間

不受蒸汽影響；即使在高濃度時

易于拆卸、清潔和重新安裝

無活動部件

LV170光學(xué)液體傳感器準(zhǔn)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(nèi)置電子開關(guān)確保了其長期使用壽命的可靠性。這種可重復(fù)使用的傳感器很容易適應(yīng)小的間隙空間，并感知液態(tài)烴或水。該裝置不受碳?xì)浠衔镎羝挠绊?，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(hù)后拆卸、清潔和重新安裝。LV170光電傳感器包含一個紅外LED和一個光接收器。來自LED的連續(xù)光被導(dǎo)入形成傳感器尖端的棱鏡。在沒有液體的情況下，LED發(fā)出的光在棱鏡內(nèi)反射到接收器。當(dāng)上升的液體浸入棱鏡時，光線折射到液體中，只留下很少或沒有光線到達(dá)接收器。接收器感應(yīng)到這種變化后，啟動裝置內(nèi)的電子開關(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.