Guide book for scientific and accurate use of piston water meter

Piston water meters have high measurement accuracy, which is its main advantage. It is also obvious for users to purchase water meters, and the range of use is relatively wide. Some water meters will have greater accuracy due to the environment. The impact of the piston water meter in this regard is relatively small.

Piston water meter has its advantages and its disadvantages. Everything can't be perfect. Sometimes flaws are also perfect. Piston water meters are relatively heavy and have large head loss, which is 2 to 3 times larger than the speed water meter of the same port. In order to avoid a series of problems, it is necessary to install a rim filter in front of the piston water meter to improve the usage of the water meter.

1. Definition: Under the measuring conditions, the piston water meter continuously measures, memorizes and displays the total amount of cold water that can be directly drinkable flowing through the closed pipe

Performance characteristics: This piston water meter adopts a rotary piston metering mechanism with high measurement accuracy. The counting mechanism is packaged with special liquids. It has the characteristics of clear reading and light appearance, and the water inlet is equipped with a check valve to prevent backflow.

Maximum allowable error: cold water meter: a) Low area (Q1≤Q＜Q2) The maximum allowable error is ±5%

b) High area (Q2≤Q＜Q4) maximum allowable error is ±2%

2. Safe installation of piston water meter

The probability of safety problems occurring during the use of the water meter is very low. It is not only related to its quality. Safety issues should be considered during the installation of the piston water meter, and an appropriate installation strategy can be made based on the surrounding environment.

The piston water meter is affected by the surrounding environment, such as temperature problems. It is not suitable to be installed in an environment that is susceptible to freezing and exposure. It should be installed in a tightly closed, dry, and sand-proof, sewage-erosion-proof, and anti-rolling place. The quality of water supply service, resolve the contradiction between water supply and charging, and avoid unnecessary waste.

3. Clean the piston water meter

Dirt will appear after the piston water meter is used for a long time, so it needs to be cleaned up regularly. The ordinary water meter or cassette water meter that is used most in daily life, if it is used for a long time, there will be dirt on it, if there is dirt Let the manufacturer check if there is any problem, and if there is no problem, you can directly clean it up.

If there is some dirt in the piston water meter that is blocked, it is more cost-effective to replace the new water meter. The blocked water meter must be inaccurate and inaccurate in the measurement problem. If you are using an inaccurate water meter and you pay the fee every time, it will cause unnecessary losses to you. Check the piston water meter regularly to check whether the water meter can be normal and run accurately, and do not delay normal use.

Third, the piston water meter should also be moisture-proof

The working environment of piston water meters is related to water. Some friends questioned whether they are afraid of humidity when working in a place full of water. Piston water meters must be protected against moisture. The manufacturer takes this into consideration when making them. The meters usually have When setting up the items in this area, moisture-proof is mainly for some parts in the water meter to ensure normal operation and accuracy. Some measures must be taken.

The moisture-proof of the water meter starts from itself, and the user should also do auxiliary work. The market inspects the environment where the water meter is installed. If a leak is found, it should take immediate measures to protect the normal operation of the water meter.

Fourth, how to use the piston water meter

The installation of water meters is carried out in a unified manner, requiring the staff to be responsible and technical. Some departments have hurriedly installed the water meters, which has caused problems for users to use the water meters, which we do not want to see. The correct installation and use of piston water meters can save water to a certain extent.

The use of the piston water meter considers both the maximum flow of water and the minimum and starting flow to ensure accurate measurement, prevent reasonable water theft, and minimize the leakage rate. Piston water meters For the urban-rural junction or places where others are prone to cheating, it is recommended to use anti-magnetic interference water meters, such as wet liquid-sealed water meters and electronic water meters. It is recommended to add a magnetic shield and remote monitoring for water meters with magnetic materials.

Five, the price of piston water meter

The intelligent operation of the piston water meter is free from the trouble caused by the traditional meter reading. Now a computer can control the entire data without the need for door-to-door meter reading, which is convenient for water conservancy companies and also convenient for users to use and maintain. When it is easy to use, users begin to consider the issue of price. Will the intelligentization of piston water meters increase its price? This is a general concern of the public.

The price of the piston water meter varies from region to region, but the difference is not very large. On the whole, the price is almost the same. The public can rest assured that the price is transparent, and there will be no big difference nationwide.

Six, the advantages of using super capacitors in piston water meters

The use of batteries for piston water meters is a problem that needs to be considered. The batteries are required to be durable and should not be replaced frequently, which will affect the normal operation of the water meter. Therefore, the use of super capacitors can effectively extend the use time of the water meter. The high-current discharge characteristics of the super capacitor ensure the reliability of the shut-off of the water valve of the piston water meter. When the external battery is insufficient, the energy stored in the super capacitor can still be used to shut off the water valve.

The use of supercapacitors overcomes the shortcomings of piston water meters, ensures the feasibility of smart water meters, extends the service life, and also helps in calculating accuracy.