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What are the different classification standards for common household and industrial water meters? Household and industrial water meters are mainly classified according to measurement principles, usage scenarios, installation methods, measurement accuracy, and other standards. 1. According to the measurement principle, mechanical water meters measure water volume by rotating the impeller, including rotor dust difference or type (small flow rate) and spiral wing type (large flow rate), with low cost but average accuracy. Electronic water meter: using ultrasonic or electromagnetic induction principles, with no mechanical wear, high accuracy, and support for remote reading, suitable for intelligent water management systems. two According to the usage scenario, it is usually DN15-DN25 caliber, mainly mechanical, such as the common rotor type cold water meter. Industrial use: The caliber can reach DN300 or above, requiring high pressure resistance and high flow rate, such as compound water meters or electromagnetic flow meters. three Horizontal installation according to installation method: Most household meters require horizontal pipeline installation. Vertical installation: A specially designed vertical water meter suitable for space limited scenarios. four According to the measurement accuracy of Class A/B, it is mostly Class B for household use (with an error of ± 2%), and Class A for industrial use (with an error of ± 1%) is more accurate. R160/R400: Industrial meters have a higher measurement ratio (maximum/minimum flow ratio) and are adaptable to flow fluctuations. Other categories include hot and cold water meters (distinguished by blue/red markings), prepaid water meters (controlled by IC cards), and wireless Paiw
2. Meaning of Water Meter Symbols
The meaning of water meter symbols is as follows: L: represents the code name of the water meter, Bo Xiong Yan, where the first digit is fixed as L, indicating the type of flow meter.
. The second letter: S: represents a rotary wing water meter. L: Represents a horizontal spiral wing water meter. R: Represents a vertical spiral wing water meter. F: Used in compound water meters. D: Indicating a quantitative water meter. The fourth letter: R: represents hot water meter dust mountain. L: Represents a vertical water meter. N: Indicate forward and reverse flow water meter. G: Indicates a dry water meter. Y: Indicates a liquid sealed water meter. C: Indicates a detachable water meter. Attention: The letters A, B, C, E, etc. in the model represent different design features, but the basic silver A-type table has been listed as an obsolete product and will no longer be produced. When selecting a water meter, users should carefully identify the meanings represented by each letter in the water meter model based on their own needs and actual installation environment, in order to choose the appropriate water meter.3. Open channel box flowmeter
4. Energy measuring instruments include
Energy measuring instruments are key tools for monitoring energy consumption, covering various types of energy such as electricity, gas, water, etc. 1. Basic energy measuring instrument: Electricity meter: directly measures household, industrial and commercial electricity consumpt
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