1. introduction

　　LWGY series turbine flow sensor (the follows call it sensor) is based on the principle of moment balance, so belongs to speed type flow meter. The sensor has the advantages of simple structure, light and handy, high accuracy, good repeatable, responsive and easy to install and maintenance. It is widely used in industry of Petroleum, chemical industry, metallurgy, water supply, paper making, etc. Ordinary the sensor working with indication instruments together. It is appropriate for measuring pipeline’s impurities of liquid, which do not corrosion effect with the steel stainless 1Cr18Ni9Ti、2Cr13, 2Cr13,
corundum and Al2O3 hard alloy. If used with special function display instruments, also Can be quantitatively controlled, Excessive alarm etc. you can chose the explosion-proof type, because it can used in the explosion dangerous environment.

　　This sensor apply for working in the Viscosity is less than 5 x 10-6 m2 / s of medium. If over this value, you should make a solid liquid calibration of sensor after use. If users need to special kind of sensor, you can negotiate orders, if sensor explosion-proof type, in order to illustrate.

2. Features

　　1. low pressure loss.

　　2. Have high resistance to electromagnetic interference and vibration resistance, performance reliable working life is long.

　　3. To adopt advanced technology of ultra-low power consumption single chip microcomputer. The whole machine function is strong, low power consumption, superior performance. With nonlinear precision compensation function of wisdom, the accuracy of correction formula is better than that of plus or minus 0.02%.

　　4. Instrument coefficient can be set up by the button online, and can be displayed on the LCD screen, LCD screen clear intuitive, high reliability.

3. Operation and adjustment

　　◆To keep liquid clean and no fiber and impurity.

　　◆Please open valve slowly and fill the sensor gradually. High water hamper to the empty sensor was prohibited.

　　◆Normally sensor maintenance period is six months. During cleaning of sensor, please pay attention not to damage measurement cavity parts,especially the turbine. Before assembly, please pay attention to the relationship between the turbine and flow-guider.

　　◆For storage, please clean the liquid inside the sensor, and cover 2 ends of the sensor againstimpurity entering the sensor. Please keep the sensor in dry and clean place

　　◆For equipped filter, please clean it periodically. When it’s not used, please clean and store it just as to sensor.

　　◆Sensor's transmission cable can be laid overhead or underground (please put the cable into metal pipe if it’s buried underground.)

　　◆Before sensors installed, please connect electrically the sensor to indicator to see whether indicator shows flow when user rotates the turbine. If no flow displays on indicator, please check the relevant part to kill trouble before installation.

4. Specifications