The Necessity of Electromagnetic Flowmeters for Water Supply Enterprises

The key point of the electromagnetic flowmeter is that it is not affected by many factors. It is applicable to the measurement of the conductive liquid flow. The output current is in linear relationship with the instantaneous flow rate, and the range of measurement is also very wide. Therefore, the water company will choose such a flow meter with high accuracy and good stability.

However, water companies should pay attention to the following issues when selecting electromagnetic flowmeters .

Power problem. Since the electromagnetic flowmeter requires an external power supply, it is inconvenient to form an outdoor device, and also limits the use of the electromagnetic flowmeter in the suburban pipe network. In addition, electromagnetic flowmeters generally do not have their own power supply. Once the power is turned off, the flowmeter data used as a clearing water meter will be missing. Thus, the measurement and calculation of the amount of water that is lost during the power off period will raise new problems. Less work. Lithium battery version electromagnetic flowmeter can bring its own power supply, can basically deal with this problem, it will also promote its implementation in the settlement of water meters.

Signal transmission problem. The electromagnetic flowmeter used for the regional pipeline network can provide certain decision-making information for urban water supply dispatch. Therefore, we hope that the electromagnetic flow signals used for user settlement or regional pipeline network are continuous in real time. If the electromagnetic flowmeter can complete automatic signal conversion and wireless transmission in the instrument itself, reducing the compatibility of data acquisition or disturbing each other, it will provide convenience for enterprises and will also increase the application of electromagnetic flowmeters. Advantage.

Lightning protection issues. Whether it is a clear water meter or a regionally-measured electromagnetic flowmeter, the electromagnetic flowmeter's lightning protection is a severe test in the more spacious suburbs. After severe grounding and power maintenance, the probability that an electromagnetic flowmeter installed in a spacious area is hit by lightning is still high. If it is damaged by a lightning strike, only a new converter can be purchased and the cost is higher. Users usually use the electromagnetic flowmeter to build houses, make ground nets, and install lightning rods to avoid lightning. The effect is very obvious, but it also needs to deal with land use rights and the harmonization planning problem with the surrounding environment. The procedure is more complex. Therefore, the simplest and most effective method is to improve the lightning protection performance of the flowmeter itself. If it is impossible to handle the basic performance, the internal circuit should be stopped and maintained. This will reduce the cost of replacement even if the lightning strike is damaged.

The intelligent electromagnetic flowmeter is developed based on the standard manufacturing system. Its advanced design concept ensures the high precision and high reliability of the product. Compared with the old electromagnetic flowmeter, it has high measurement accuracy, reliability, and stability. Good, functional, long life and other advantages. So it is widely used in industrial production.

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