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How to maintain the electromagnetic flow meter scale?

by:Sincerity     2020-12-17
Abstract: how to maintain the electromagnetic flow meter scale? Information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. How to maintain the electromagnetic flow meter? Electromagnetic flowmeter is a kind of measuring tube according to Faraday's law of electromagnetic induction induction of conductive medium volume flow meter, MCU embedded technology, digital excitation, at the same time in the electromagnetic flow meter adopting CAN now. More flow meter manufacturers choose model price quote you are welcome to inquire, here is how to maintain the electromagnetic flow meter scale? The article details. How to maintain the electromagnetic flow meter? Electromagnetic flowmeter is a kind of measuring tube according to Faraday's law of electromagnetic induction induction of conductive medium volume flow meter, MCU embedded technology, digital excitation, at the same time in the electromagnetic flow meter adopting CAN field bus. * in China, the technology for domestic ling first level. Electromagnetic flowmeter application field is very broad, such as measurement of papermaking industry of paper slurry and pulp of the black liquor, nonferrous metallurgy industry, coal preparation plant of coal slurry, strong corrosion liquid chemical industry, steel industry blast furnace tuyere cooling water control, long distance pipeline hydraulic transportation of coal flow measurement and control, etc. First of all, we should pay attention to the following points about electromagnetic flowmeter maintenance: 1, daily maintenance, only need to make periodic visual inspection instrument, check meter surroundings, remove dirt, ensure no water and other substances, check whether the connection is good, check meter ever new strong electromagnetic field near equipment or have new wire across the instrument. If measured medium easy contamination electrode precipitation, scaling, or within the measuring tube wall cleaning scales, cleaning should be done regularly. 2, troubleshooting flowmeter launched after a period of time or normal was put into the instrument work found abnormal, should first check the flowmeter external circumstances, such as power supply are in good condition, pipe leakage or in the full package condition, whether there is air bubbles inside the pipeline, signal cable is damaged, the converter output signal ( After the instrument input circuit) If open circuit. Bear in mind that blind overhaul flow meter. 3, sensors, check the test equipment: 500 m & Omega; Insulation resistance tester, a multimeter. Testing procedures: 1) Under the condition of the pipeline with medium, measured with A multimeter terminals A, B and C, the resistance value between A minus C、B - C resistance between thrown to be equal. If differences in 1 times above, may be electrode, measuring the outer wall of pipe leakage or junction box with condensed water adsorption. ( 2) Under the condition of dry lining, MΩ A - table test C、B - The insulation resistance between C ( Should be greater than 200 m & Omega; ) 。 With A multimeter measuring terminal of A and B and the resistance of the measuring tube two electrodes ( Should be a short circuit connected state) 。 If the insulation resistance is small, the leakage of electrode, it should be a complete set of flowmeter factory maintenance. If the insulation fell but there are still a 50 m & Omega; The above and the step ( 1) Test results is normal, may be measuring the outer wall of pipe be affected with damp be affected with damp, available hot air blower to dry inside the shell. ( 3) The multimeter measure the resistance between one of the X, Y, if more than 200 & Omega; , the excitation coil and the lead wire may be open or poor contact. Remove the terminal board. ( 4) Check the insulation resistance between the X, Y, and C, should be in the 200 m & Omega; Above, if fell, shell internally with hot air drying processing. Coil insulation fall in actual operation will lead to a measurement error increases, meter output signal is not stable. ( 5) If determine sensor is faulty, please manufacturers with electromagnetic flowmeter, generally the scene could not solve, need to the factory maintenance. 4, converters, such as judgement is converter fault, through inspection under the condition of external causes no problem, please contact with the company, usually adopt the method of replacement of circuit board to solve. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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