Float level sensor float level sensor consists of a magnetic float, measuring catheter, signal unit, electronic unit, junction box and mount components. The proportion of the general magnetic float of less than 0.5, Hunan filter sensor may drift above the surface and measuring the movement along the vertical pipe. Catheter that has the measuring element, filter sensor manufacturers, which can be converted in external magnetic interaction resistance signal proportional to the measured level signal is converted to level changes, filter sensors offer, and the electronic unit into 4 ~ 20mA or other standard signal output. The sensor module circuit, with acid, moisture, shock, corrosion, etc., within the circuit contains a constant current feedback circuit and protection circuit, output can not exceed the maximum current 28mA, it is possible to reliably protect the power supply and the secondary instrument not damaged. Under the definition of national standards GB7665-87 sensor is: "to feel provisions are measured pieces and according to certain rules (rule of mathematical functions) into the device or devices available signals, filter pressure signal, typically by a sensor and conversion elements. " Chinese Things schools and enterprises Union considers that the existence and development of the sensor, so that the object had touch, taste and smell and other senses, so that the object gradually became alive again. "" Sensor "is defined in New Webster Dictionary as:" to accept power from a system, usually the second system device to another form of the power to the "high-quality filter sensor, Xinfeng (online. Consulting), Hunan filter sensor provided by the Xinxiang City Xinfeng purification Sensing Technology Co., Ltd Xinxiang City, Xinfeng purification Sensing Technology Co., Ltd. (www.xfcgq.com) (www.xfcgjh.com) Henan Xinxiang, sensors leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs in Xinfeng leadership with the staff warmly welcome all inquiries negotiations to create a better future Xinfeng.