Three problems that split electromagnetic flowmeters may encounter during use

As a flow measurement instrument widely used by industrial users, the split electromagnetic flowmeter is popular with users because of its many advantages such as not involving the temperature, pressure, density and viscosity of the fluid in the measurement. However, the installation and commissioning of the split electromagnetic flowmeter is more complicated than other flowmeters, and the requirements are more stringent. The transmitter and converter must be used in conjunction, and two different types of instruments cannot be used between the two. When installing the transmitter, from the selection of the installation site to the specific installation and commissioning, it must be operated in accordance with the product installation and use instructions. Therefore, during use, special attention should be paid to the impact of adverse factors in the external environment on the measurement status of the split electromagnetic flowmeter. The engineers of the technical department of Runzhong Instrument Technology Co., Ltd. have summarized the following three precautions for everyone, hoping to attract the attention of all users and friends:
 
First, the power supply problem. Since the split electromagnetic flowmeter requires an external power supply, it is inconvenient to install it outdoors, and it also limits the use of the split electromagnetic flowmeter in suburban pipe networks. In addition, the split electromagnetic flowmeter does not have its own power supply. Once the power is cut off, the flowmeter data used as the settlement water meter will be missing. This will raise new problems for the measurement and calculation of the missing water volume during the power outage period. Generally, water supply companies and users discuss and deal with each case individually, which increases a lot of workload. If the split electromagnetic flowmeter can have its own power supply, this problem can be fundamentally solved, and it will also promote its promotion and application in settlement water meters. Now it can be powered by lithium batteries, which solves this problem.
　　
The second point is the lightning protection problem. Whether it is a split electromagnetic flowmeter for settlement water meters or regional metering , in relatively open suburbs, especially in Guangdong where thunderstorms cover a large area, the lightning protection of the split electromagnetic flowmeter is a more severe test. After strictly doing grounding and power protection, the probability of being struck by lightning for split electromagnetic flowmeters installed in open areas is still very high. Therefore, the simplest and most effective way is to improve the lightning protection performance of the flowmeter itself. If it cannot be fundamentally solved, its internal circuit should be separated and protected, so that even if it is damaged by lightning, the replacement cost can be reduced. The
　　
third point is the signal transmission problem. The split electromagnetic flowmeter used in the regional pipe network can provide certain decision-making information for urban water supply scheduling, so we hope that the electromagnetic flow signal used for user settlement or regional pipe network is real-time and continuous. The current split electromagnetic flowmeter requires water supply enterprises to develop or select other data transmission systems to achieve real-time monitoring of data. This not only increases cost investment, but also increases the difficulty of operation and management. If the split electromagnetic flowmeter can complete the automatic conversion and wireless transmission of signals in the instrument itself, reducing the compatibility or mutual conversion of data collection, it will provide convenience for the use of enterprises and will also add greater advantages to the promotion and application of split electromagnetic flowmeters.
　　
In general, the split electromagnetic flowmeter has high measurement accuracy, high sensitivity and good stability. The metering application of water supply is becoming more and more extensive, especially in factories, communities and other places with large calibers and good installation environments. The installation and use technology of split electromagnetic flowmeters is already quite mature.