Correct installation of electromagnetic flow meter is of great significance

Abstract: Correct installation of electromagnetic flowmeters is of great significance. The excellent flowmeter and flowmeter manufacturers and quotation manufacturers provide you with important information. Electromagnetic flowmeters have occupied a dominant position in flow measurement in the industrial field. Only correct installation and use can ensure the life and accuracy of the instrument. The correct installation of electromagnetic flowmeter has a long-term effect on improving its measurement accuracy and prolonging the life of the flowmeter. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the important article details of the correct installation of electromagnetic flowmeters. Electromagnetic flowmeters have occupied a dominant position in flow measurement in the industrial field. Only correct installation and use can ensure the life and accuracy of the instrument. The correct installation of electromagnetic flowmeter has long-term significance to improve its measurement accuracy and prolong the life of the flowmeter. How to correctly achieve zero mistakes in installing electromagnetic flowmeters? 1. The straight pipe section requires 3D5D (D is the pipe diameter), all valve types, the elbow is in the front, and you install the instrument to confirm that there is a straight pipe enough, which is in line with the general principle for installing the flow patterndistribution pipe as much as possible tea is Inevitably, reducers, flow meters, should be placed before the pipeline, various valves 10D, 90°General requirements for elbows, straight tee 5D diameter pipes. 2. Installation position and direction The vertical installation of the sensor is ideal, but attention must be paid to the fluid flow. The electrode must be installed horizontally on the horizontal axis. As an electrode with a vertical axis, the gas is above the electrode, simple and dirt affects the contact electrode, the electrode includes the following scale, which is easy to set the error caused by fluid, ground, etc. The location is not liquid, is not at any time, the measuring tube is at zero. To prevent the illusion caused by the program, you need to select the measurement fluid-filled catheter. The design of the pipeline, it is necessary to ensure that you don't not produce bubbles, liquid flowmeter air bubbles, therefore, to prevent the effect of the throttle valve reducing the pressure in the pipeline, the upstream valve you need to install it. To avoid measurement errors around sensors, electromagnetic interference (eg, high-power motors, transformers, etc.) is not possible. 3. Grounding In order to measure the fluid circuit potential of the electromagnetic flowmeter as a zero potential determination, most of the chances are that the output signal of the sensor and the liquid measurement of the measured fluid are electrically connected through the point grounding, the midpoint of the grounding potential input of the converter . In addition, the output signal of the electromagnetic flowmeter sensor is only very small at the full scale of the flow rate of 2.5~8.0mV, and the output is a slight disturbance, only a few millivolts, which affects the accuracy of the meter. In order to reduce electrical interference and ensure the normal operation of the electromagnetic flowmeter, you should pay attention to the following points. a. The measurement of tube sensor, casing, shielded wire, converter and secondary instrument must be grounded. b. The sensor must be grounded, with an independent converter, absolute, resistance connected to the ground of the motor, process piping, must be less than or equal to 10Ω. c. In the grounding of converters in this field, and on the secondary side ground above the multi-terminal ground of the shielded equipment control room, it is not necessary to avoid the possibility of introducing various interference [1]. d. The sensor is installed in a metal pipe, and the ground wire of the sensor can be connected, depending on the manufacturer's requirements, to form a reliable ground loop on the side of the pipe flange. The point of the ground equipment, it must be a separate ground, the ground wire and other electrical equipment connected together is not allowed. 4. Piping a. In order to eliminate flange runout and fracture, the misalignment or inclination of the pipeline and the deviation of the installation distance between the two flanges should be corrected when installing the flowmeter. If it is installed on a long overhead pipeline, there should be a support for the pipeline between the two flanges of the flowmeter to prevent the pipeline vibration from causing stress. b. Eliminate foreign objects such as welding slag in the pipeline. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The correct installation of electromagnetic flow meter is of great significance'
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