Each flow meter in the course of use due to improper operation, current instability, operation did not follow the strict implementation of the instructions and other factors to produce a certain degree of loss and operational obstacles to the formation of machine problems, showing damage. So what is the cause of the electromagnetic flowmeter? Runtime failure If you purchased an electromagnetic flowmeter with the following problems: 1 , the flow meter does not display 2 ã€Flowmeter alarm 3 , the flowmeter is damaged 4 , flowmeter error code 5 , flow meter failure Then, Shanghai AiLin Automation Equipment Co., Ltd. will give you the most intimate service. Various products bicycle pump, pump, tire pump, floor pump,hand pump, stainless steel pump, mini pump, inflator for children bicycle, bicycle, motorcycle, providing product images and basic parameters with each Various of bicycle pump, pump, tire pump, floor pump,hand pump, stalnless steel pump, mini pump, inflator for Children Bicycle / Bike / cycle / Bicycle part and motorcycle; We are a professional Chinese manufacturer of pump, tire pump, floor pump,hand pump, stalnless steel pump, mini pump, inflator, and look forward to your cooperation! Bicycle Pump,Tire Pump,Hand Pump,Stainless Steel Pump,Mini Pump SHIJIAZHUANG LONGXUAN TRADING CO., LTD , https://www.chinaweldingmachine.cn
After the initial commissioning and normal operation of a period of time after the operation of the failure occurred, the common causes of the failure are: the inner wall of the flow sensor layer, lightning strikes, changes in environmental conditions.
1 , the inner wall adhesion layer
Because electromagnetic flowmeters have a much higher chance of measuring suspended solids or contaminants than other flow meters, the probability of failure due to the inner wall adhesion layer is relatively high. If the adhesion layer conductivity is similar to the liquid conductivity, the meter can still output signals normally, but only change the flow area, forming a hidden failure of the measurement error; if the high conductivity adhesion layer, the electromotive force between the electrodes will be short circuit; if the insulating adhesion layer The electrode surface is insulated and the measurement circuit is disconnected. The latter two phenomena will make the instrument unable to work.
2 , lightning strike
Lightning strikes instantaneous high voltages and inrush currents in the line, which can damage the meter. There are three ways to introduce a lightning damage meter: the power line, the sensor's flow signal line and the excitation line between the converters.
In view of the causes of some electromagnetic flowmeters, the company has also sorted out some installation site requirements, and is also in order to be able to reach the aspirational measurement accuracy, and we have stringent requirements for the choice of resettlement site. When selecting the resettlement site, the following requirements should be carefully scrutinized:
1. Electromagnetic flowmeters should be installed only if they avoid ferromagnetic objects and equipment with strong electromagnetic fields (such as large motors, large transformers, etc.) in order to prevent magnetic fields from affecting the sensor's magnetic field and flow signals.
2. The electromagnetic flowmeter should be installed only to prevent the sun and rain, to prevent the situation temperature is higher than 60 °C and relative humidity is greater than 95%.
3 , the placement of electromagnetic flowmeters should be chosen for ease of maintenance and convenient movement.
4. The electromagnetic flowmeter should be installed at the back end of the water pump and it must not be placed on the suction side; the valve should be placed on the side of the mean flow.
5 , electromagnetic flowmeter should be placed only in the dry air, should not be placed in a wet, easy to place water.
Shanghai AiLing Automation Equipment Co., Ltd. has been tracking after-sales service, serving every consumer as an industry standard, regularly providing a free professional product inspection and maintenance for every user who purchased products of Shanghai AiLin Automation Equipment Co., Ltd. service. The company has passed a number of international safety certifications, serves thousands of customers, has a good reputation in the industry and professional skills.