Installation and maintenance of tap water flow meter

Abstract: The installation and maintenance information of tap water flow meter is provided by the excellent flow meter and flow meter production and quotation manufacturers. Installation of tap water flowmeter The installation should pay attention to the following requirements: (1) Ensure that there is no severe temperature difference in the installation site of the equipment, ensure a good ventilation environment, and avoid contact with strong corrosive gases. (2) It cannot be installed in an environment that is prone to electromagnetic interference. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the installation and maintenance of tap water flowmeters. Installation of tap water flowmeter The installation should pay attention to the following requirements: (1) Ensure that there is no severe temperature difference in the installation site of the equipment, ensure a good ventilation environment, and avoid contact with strong corrosive gases. (2) It cannot be installed in an environment that is prone to electromagnetic interference, otherwise it will cause measurement accuracy errors. (3) The flow direction of the liquid to be measured must be consistent with the arrow mark of the tap water flowmeter during installation. If the flow rate is found to be inconsistent with the mark, it is mainly in the opposite direction of 180 degrees. At this time, it is necessary to modify the flowmeter parameters to set the reverse flow to adjust the installation direction. problems caused by errors. (4) When installing on the pipeline, it should be carried out in strict accordance with the relevant requirements (as shown in Figure 3 and Figure 4). 1) in Figure 3 represents the nominal diameter of the bamboo road. When the flowmeter is installed, it can be water, vertical, or horizontal at any angle (as shown in Figure 4), but it must be installed to ensure that the liquid to be measured can flow through the pipeline. The two electrodes of the flowmeter are submerged in the full tube, and there is room for maintenance. It can be clearly seen from the two pictures in Figure 4 that the correct installation method must be full of liquid when flowing through the pipeline, so as to ensure that the two electrodes are immersed in the liquid and obtain accurate measurement values. The installation of the flowmeter requires a good interference suppression system, including shielding technology and grounding technology. The induced signal voltage of the flowmeter is very low. There are various sources of interference in industrial sites and environments. Whether it is external interference or internal interference, it will cause flowmeter signal interference. Therefore, the reference potential of the flowmeter must be consistent with that of the flowmeter. The tested liquid is the same. The imported tap water flowmeter adopts dual-frequency excitation to collect high-frequency signals and low-frequency signals respectively (the former is not disturbed by mud noise, and the latter has excellent zero-point stability), and the parts required by the seeding components are selected through different digital filters. Calculation is performed to obtain a stable output signal. Maintenance of tap water flowmeters The maintenance of tap water flowmeters is mainly about daily maintenance and regular inspections. The flowmeter shows zero flow: Generally, the flowmeter itself has few problems, mainly because the valve on the flowmeter pipeline is not opened, or the problem caused by the failure of the check valve leads to the failure of the pipeline. If the zero flow caused by the valve factor is eliminated, There is no display on the on-site LED panel, you can check whether the 220V power supply of the flowmeter is normal, and whether the fuse of the amplifier circuit board in the flowmeter is burned out. When the power supply and fuse are normal, you can use the BT200 flowmeter hand terminal (as shown in Figure 5) or the LED liquid product panel to operate. Use the white diagnostic function (self check) of the flowmeter to check whether the flowmeter is in good condition. If it displays GOOD, it means the flowmeter is working normally. If ERROL occurs in self-diagnosis, you need to replace the amplifier circuit board to solve it. You can also use the TEST item to test whether the amplifier circuit board is working properly. If there is a display on the on-site LED panel or the BT200 Handheld Communicator can read the real-time flow data, but the DCS cannot display the data, then you need to check the output signal (pulse or current) of the flowmeter. Taking the output current signal as an example, if the signal at the output terminal can be detected with a multimeter, then check the wiring entering the DCS module. If there is a signal input module, check whether the range setting of the flowmeter is performed on the host computer. If no current signal is detected on the output board of the flowmeter, the output board needs to be replaced. If the flow rate of the flow meter fluctuates, first check whether the grounding is good, whether the liquid is really filling the pipeline, and whether the valve is working properly with the white moving control valve. Tap water flowmeter, circulating water flowmeter, sewage flowmeter, hot water flowmeter The above is the entire content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Installation and Maintenance of Water Flow Meters'

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