美***OMEGA欧米茄LV171_LV172光电液位开关

紧密配合间隙空间

不受蒸汽影响；即使在高浓度时

易于拆卸、清洁和重新安装

无活动部件

美国OMEGA欧米茄LV171_LV172光电液位开关

紧密配合间隙空间

不受蒸汽影响；即使在高浓度时

易于拆卸、清洁和重新安装

无活动部件

LV170光学液体传感器准确检测玻璃纤维双壁罐、安全壳集水坑和双壁管道中是否存在液体。内置电子开关确保了其长期使用寿命的可靠性。这种可重复使用的传感器很容易适应小的间隙空间，并感知液态烃或水。该装置不受碳氢化合物蒸汽的影响，从而大大降低了误报警的风险。LV170传感器易于在触发报警条件或进行维护后拆卸、清洁和重新安装。LV170光电传感器包含一个红外LED和一个光接收器。来自LED的连续光被导入形成传感器尖端的棱镜。在没有液体的情况下，LED发出的光在棱镜内反射到接收器。当上升的液体浸入棱镜时，光线折射到液体中，只留下很少或没有光线到达接收器。接收器感应到这种变化后，启动装置内的电子开关，以操作外部报警或控制电路。

美***OMEGA欧米茄LV171_LV172光电液位开关

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.