SILVER AUTOMATION INSTRUMENTS

5. Electromagnetic Flow meter Phenomenon Cause Measure No flow signal output 1. Instrument power supply is not normal. 2. The cable is not connected properly. 3. Liquid flow conditions do not meet the requirements. 4. The sensor parts are damaged or the inner wall is attached. 5. The converter components are damaged. 1. Check whether the output of the power circuit board is normal. 2. Connect the cables correctly. 3. Check the flow direction of the liquid and whether the liquid in the tube is filled. 4. Regularly clean the covered liquid scar layer. 5. Replace the damaged components. Output value  fluctuation 1. Electromagnetic interference generated by external stray current. 2. The pipe is not filled with liquid or contains bubbles in the liquid. 3. The power supply board is loose. 1. Check the instrument operating environment whether there is a large electrical or welding machine at work. 2. Make sure the liquid is full

Flow meter is one of the mostly used instruments in industry. Only mastering the common handling measures of faults towards flow meter can we make a judgment to solve the problems coming cross in the process of production. Common faults and its handling measures towards flow meter 1、positive—displacement flow meter roots flow meter phenomena reasons handling measures the waist wheel does not run 1、 The dirt blocks the pipes 2、The tested liquid is frozen 1、 To clean the pipe、filter and flow meter 2、 To resolve the liquid The waist wheel runs but the needles do not move or stop at times 1、The fork of gauge outfit is out of line The dirt goes into the speed charger of gauge outfit 2、The needles or counter is jammed 3、The speed charger disjoints To discharge the gauge outfit and to use hands to run the fork.If the instrument moves, it proves that the connection of gauge outfit and bearing is broken; if not, we have to check step by step.

I. The operational principle of water flow sensor—A brief introduction Water flow sensor is a kind of instruments used for testing flow parameters of media like liquid and gas and to change them into other forms of signals for output. Water flow sensor has advantages of small size、light weight、audio—visual and clear reading、high reliability and zero pressure loss. As a result, it has been widely used in many areas such as environmental monitoring、safety protection、health care and trade settlement. However, it can not measure the flow that is non—conductive medium, which limits its development in a sense. II. The operational principle of water flow sensor—Classification Water flow sensor can be divided as water flow sensor、plug—in water flow sensor 、vane—typed air-water flow sensor、vortex water flow sensor、Karmen—vortex air-water flow sensor and hot—wire air-water flow sensor, etc., among which water flow sensor is mainly composed of copper valve body、flow rotor assembly、s