Electromagnetic flow meter scale examination and debugging, and advantages of application

Abstract: the electromagnetic flowmeter inventory checking and debugging, advantage and application of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Electromagnetic flowmeter is the use of electricity inkstone vexed now to state of the law of induction of ductal conductive liquid in which the instrument. Simple structure in the transmitter, tube not highlight or rotating parts. So is suitable for various corrosive such as acid, alkali, salt solution and solids in suspension. Liquid. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the electromagnetic flowmeter inventory checking and debugging, advantage and application of the article details. Electromagnetic flowmeter is the use of electricity inkstone vexed now to state of the law of induction of ductal conductive liquid in which the instrument. Simple structure in the transmitter, tube not highlight or rotating parts. So is suitable for various corrosive such as acid, alkali, salt solution and solids in suspension. Content of the liquid side benefit such as pulp, paddle, etc. But it cannot be used for measurement of gasoline or other oil mixture. ( 1) Zero check and adjustment of the instrument before put into operation, after electrify must under the electromagnetic flowmeter sensor with liquid stationary state adjust the zero point. After put into operation will stop flow liquid conditions of use on a regular basis for zero check; Especially on precipitation, easy pollution electrode, the cleaning liquid containing solid phase, at the beginning of the run should be checked, in order to obtain experience to determine the normal inspection cycle. Ac excitation mode of electromagnetic flowmeter with rectangular wave excitation, are more likely to produce zero drift, so more attention should be paid to check and adjust. Two sedimentary malfunction application example of the error. A drilling for oil well cementing engineering, the total flow perfusion slurry is an important process parameters, often with high-pressure electromagnetic flowmeter. Instrument intermittent use, with finish to wash after sensor tube, the rest of the time are hollow tubes. Due to inadequate cleaning, measuring residue slurry solidifying into a thin layer of tube wall, nearly two months accumulation form the insulating layer, covering the entire electrode surface, leading to run not to the final can not work normally. Another test device for electrolytic cutting process, saturated salt water flow is controlled by electromagnetic flowmeter, clearance after using a period found that traffic signal gradually weakened, 2 months after the signal is zero. Reason is electrolytic iron deposition in the process of cutting tube wall, formation caused by short circuit. Clear stratification is back to normal immediately. ( 2) Regularly check the sensor performance 1) Roughly measure resistance between electrodes disconnect signal connection between sensor and converter, the sensor inside fluid-filled, to the two electrodes and grounding resistance value is measured with a multimeter, whether in the factory regulations electromagnetic meter value range, and the measured values of two is approximately the same. Record the measured resistance value for the first time, after this value to judge the sensor failure reason ( If sediment is conducting or insulating) Is useful. 2) Check emptying liquid electrode insulation resistance sensor, wipe the lining, after being completely dry megohm meter was used to measure the resistance between the two electrodes and earthing terminal. 3) Check the excitation winding insulation resistance sensor field coil terminal and converter indirectly line, measured by megohmmeter coil insulation resistance. Advantages: 1, the electromagnetic flowmeter without mechanical inertia, responsive, can measure the instantaneous pulse flow, also can measure the rate of flow of positive and negative two directions. 2, the output of the electromagnetic flowmeter is proportional to the average flow velocity of the measured medium, and with the flow state of symmetrical distribution ( Laminar or turbulent) Has nothing to do. So the electromagnetic flowmeter range very wide range, the measurement range can be up to 100:1, some even up to 1000:1 working flow range. 3, electromagnetic flowmeter sensor structure is simple, the measuring tube has no moving parts, no obstacles to fluid flow throttling components. So when the fluid flow through timing does not cause any additional pressure loss, flow meter is one of the flow meter running in the lowest energy consumption. 4, industrial use very wide range of the calibre of the electromagnetic flowmeter, from a few millimeters to a few meters, and the domestic existing diameter up to 3 m's real flow calibration equipment, which laid a foundation for the application and development of electromagnetic flow meter. 5, the electromagnetic flowmeter is a kind of volume flow measuring instrument, in the process of measurement, it is not affected by the temperature of the measured medium, viscosity and density with conductivity ( In a certain range), The influence of. Therefore, electromagnetic flowmeter only after water calibration, it can used to measure the conductivity of liquid flow. 6, measurable smudges medium, corrosive medium and clouding the liquid-solid two phase flow of traffic. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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