How to preventive maintenance and downtime of electromagnetic flow meter scale

Abstract: how to preventive maintenance and downtime of electromagnetic flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Electromagnetic flowmeter in downtime when not in use, we have to respond to the electromagnetic flowmeter is scientific and reasonable maintenance and maintenance method. In technical services to the user for electromagnetic flowmeter, often encounter the user after purchase electromagnetic flowmeter USES period of time, again. More flow meter manufacturers choose model price quote you are welcome to inquire, here's how to preventive maintenance and downtime of electromagnetic flow meter scale article details. Electromagnetic flowmeter in downtime when not in use, we have to respond to the electromagnetic flowmeter is scientific and reasonable maintenance and maintenance method. In technical services to the user for electromagnetic flowmeter, often encounter the user after purchase electromagnetic flowmeter USES period of time, again using found inaccurate measurement data. In fact this is not the quality problem of the electromagnetic flowmeter itself exists. Because the user is not according to the directions after use of the maintenance and maintenance methods. First, zero check and adjustment of the electromagnetic flowmeter maintenance: electromagnetic flowmeter in operation before, after electrify electromagnetic flow sensor must be filled with liquid under stationary state adjust the zero point. After put into operation or to use condition periodically stop flow 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. One is drilling 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. The other one is electrolytic cutting process on the test rig, saturated salt water flow is controlled by electromagnetic flowmeter, clearance use found traffic signal fade after a period of time. Reason is electrolytic iron deposition in the process of cutting tube wall, formation caused by short circuit. Clear stratification is back to normal immediately. Second, regularly check the sensor performance of electromagnetic flowmeter maintenance: first of all, roughly measure resistance between electrodes. Disconnect between the converter and signal connection of sensor and sensor inside fluid-filled, to the two electrodes and grounding resistance value is measured with a multimeter, e. range is in the factory, and measured by two values 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. Secondly, sensor emptying liquid, wipe the lining, after being completely dry megohm meter was used to measure the resistance between the two electrodes and earthing terminal. Finally, check the excitation winding insulation resistance, sensor excitation coil, terminal and converter indirectly line by megohmmeter measuring insulation resistance of the coil. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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