▲The world's leading Aichi Su electromagnetic water meter
The trouble of water Secretary -- controlling leakage and reducing loss
For a long time, how to control leakage and reduce loss has been a difficult problem for many water departments. In terms of leakage rate index alone, it seems that one ton of water leaked from the pipe network is the same as one ton of water leaked from the metering. However, in terms of the economic benefits of the water department, the loss of missing a ton of water in measurement is much greater than that of missing a ton of water in the pipe network. Because what is missing from the pipe network is the cost of the water division, while what is missing from the measurement is the water charge of the water division (cost + profit). In the measurement leakage, large meters above Dn40 often account for most of the water. Therefore, finding a large-diameter water meter that can not only accurately measure but also accurately detect leakage has become an urgent need for many water companies.
From the advanced experience, some developed countries usually rely on the use of electromagnetic water meters to solve similar problems. Since 2003, Japan's Aichi Su electromagnetic water meter has entered China. Over the past decade, its products have been widely used by hundreds of water enterprises, including Dalian water, Shenzhen water, first water, Shanghai urban investment water, Nanjing water and other leading enterprises.
Today, we will introduce the product representing the future development trend of large-diameter water meter - Aichi Su electromagnetic water meter.
Why choose Aichi Su electromagnetic water meter？
1 ► Aichi is the inventor of the world's first electromagnetic water meter
Founded in 1898, Aichi timepiece Motor Co., Ltd. is one of the most famous water meter manufacturers in the world. It was listed on the Tokyo Stock Exchange in 1949 and developed the world's first electromagnetic water meter in 1984. Its sales network covers dozens of countries in Asia, Europe and the Americas. In 2018, Hangzhou Water Meter Co., Ltd. was officially authorized as an official partner in the mainland.
2 ► Patented technology for superior performance
(1) Residual excitation technology - when the Su electromagnetic water meter works, it only needs intermittent power supply to ensure the continuous generation of magnetic field. The excitation frequency is up to 0.3 seconds / time, which is almost equivalent to the electromagnetic flowmeter powered by municipal power supply. The breakthrough of excitation technology has cast the excellent metering performance of the product and ensured that the battery can be used for more than 10 years.
(2) Full automatic message calibration technology - the product is calibrated by using the unique 8-bit message output mode before leaving the factory. The calibration time of each meter is more than 8 hours. All flow parameters are automatically adjusted by software, so as to ensure the repeatability and consistency of flow.
3 ► Eight performance advantages industry leaders
(1) Ultra wide range - the standard range ratio of the product is r400, and the maximum range ratio is R800. It can accurately measure almost all measurement ranges from small flow to large flow.
(2) Ultra high precision - at present, many similar products on the market use 15 second excitation once, and the average flow method is used for the interval between two excitation times, so it is often impossible to accurately grasp the change dynamics of water flow. Aichi Su electromagnetic water meter is excited once in 0.3 seconds to collect data in real time without missing any water. At the same time, the highest accuracy level can reach level 1.
(3) Very low power consumption - the built-in lithium battery can be measured continuously for more than 10 years. There are cases in China where the battery has not been replaced for 19 years and is normally online.
(4) DMA precise leak detection function - the water meter actively outputs flow data every 1.8 seconds to accurately capture the minimum instantaneous flow at night, So as to effectively judge whether there is water leakage in the pipe network and the exact value of water leakage (most similar products need to read data through external power supply due to power consumption. Generally, the maximum transmission frequency at night is once every 15 minutes. Taking the average quantity as the minimum instantaneous quantity will lead to many false judgments that seem to be true rather than false).
(5) No verification mode - there is no need to temporarily increase the excitation frequency to ensure the verification accuracy during verification.
(6) Strong environmental adaptability - all kinds of harsh external environments have little impact on the flow performance, dispelling the biggest doubt about the use of electronic large meters.
▲ Aichi Su electromagnetic water meter is hardly affected by the external environment and can be deployed at will.
(7) International health certification - the measuring tube and electrode are made of 316 food grade stainless steel, which has passed the health standard certification of NSF (NSF International), an authority in the field of international public health and safety, and can be used for the measurement of direct drinking water.
(8) Super long warranty - a large number of cases have proved that after ten years of use, the measurement accuracy of Su electromagnetic water meter is still almost the same as that when it leaves the factory. The product is guaranteed for 8 years from the date of leaving the factory, which completely eliminates the worries of the water department.
▲ experiments show that the performance of Aichi Su electromagnetic water meter remains basically unchanged within ten years.
With the opening of the era of digital water affairs, the measurement demand and big data application demand of the water department are becoming stronger and stronger. The new water meter represented by electromagnetic measurement technology is leading the future of water affairs measurement.