The difference between Germany's flexim imported portable ultrasonic flowmeter and other flowmeters
After the fixed electromagnetic flowmeter or the fixed ultrasonic flowmeter is installed, the relevant data collection personnel of the Water Resources Bureau only need to read the meter data every time, or directly record at the office site through remote data transmission. For the field instrument The daily maintenance can be done very well, but after the field instrument has been used for a period of time, is the accuracy accurate? Whether there is a scene such as zero drift. Most institutions are not clear or have relevant expertise.
Recently, the water resources bureau of a certain city in Jiangsu Province, from the perspective of improving work efficiency and improving scientific law enforcement, conducted a series of inspections on many user enterprises in the jurisdiction, preventing the national water resources from being wasted, and not allowing enterprises to bear the expenses that should not be borne. How much resources are used, how much is paid, and if there is any doubt about the relevant instrumentation, it is not based on experience to estimate the data, so the use of the unit and the water law enforcement personnel feel very happy.
From the data from the relevant technical staff on-site feedback, after comparison with the field instrument, the portable ultrasonic flowmeter imported from Germany flexim is used. Come to the conclusion:
1. The accuracy of the electromagnetic flowmeter and the fixed ultrasonic flowmeter installed since 2012 is relatively high. Whether imported or domestically produced, the detection effect is relatively satisfactory. For the electromagnetic flowmeter and ultrasonic flowmeter installed in the early years, the accuracy of 80% is OK, the deviation of 20% is large, and some readings are too small, so the national water resources are wasted, and some readings are too large. Enterprises have to pay more for the water they use. Relevant personnel of the Water Resources Bureau have made timely corrections or solutions to the problems found, which have been well received by the company.
2. Some online detection flow meters have problems with incorrect parameter settings. For example, the actual pipeline at the site is DN100mm, but the instrument is set to DN80. Do not underestimate this error, so the data measured by the meter will be more error than the original. The actual measurement data is nearly 50% smaller. In response to such a situation, the relevant personnel of the Water Resources Bureau said that in the installation and setting of instruments and instruments in the future, we will stop asking, cutting, and watching. Be sure to test the data on your own, and use scientific methods to get scientific results. This is responsible for public resources and responsible for the company!
-----Article source: Shanghai Senyi Intelligent Instrument Co., Ltd. Technology Department
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