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Q：New home IC card water meter how to choose?

Water meter is an indispensable water metrology products today, with the progress of science and technology, an IC card water meter instead of the old mechanical water meter "light battle" to solve the door meter reading and charging water problems. Newly installed household IC card water meter has many types, so buyers have brought a certain degree of difficulty of purchase. However, to buy IC card water meter friends blindly choose the most, or look directly to the IC card water meter prices to choose what kind of expensive election, or direct election cheaper.

This is a very irresponsible way for our suppliers to provide products to their customers. The newly installed IC card water meter price does not determine everything, only one-sided decision on some models of reproduction costs have increased, but does not represent suitable for all users to use. We take the dry IC card water meter and wet IC card water meter as an example, these two types of IC card water meter price basically the same, but if the user blindly choose a random, do not ask whether it is suitable for their environment. Dry water meter suitable for the northern cold weather, wet water meter for the South water quality. If the northern region to choose wet IC card water meter, then in winter will result in water meter freezing occurs.
Q：Why mechanical meter was eliminated?

With the continuous development of science and technology, high-tech technology is increasingly being applied to our lives, the smart meter is one of them. So, ordinary mechanical water meters and intelligent water meters in the end there is much difference?

Ordinary mechanical water meter, which is commonly used before our home water meter. The basic principle is to use the pressure generated by the flow of tap water to drive the rotation of the gear inside the water meter, while the water meter shows the gear under the disc drives the rotation of the pointer to count, so as to achieve the purpose of measuring water consumption, because the price is very low, The role, so the use of a wide range.

However, most of the ordinary mechanical water meters are indoors. When the water management department wants to meter the users, it is difficult for the users to ensure that they are at home. Therefore, it will increase the number of non-meaningless workloads Running, because it is manual meter reading, but also very easy to charge less, more charges or even no fees and other phenomena, and if the water meter to the outdoors, management is relatively convenient a lot, but with the attendant problems also will follow.

First of all, because many water meters are made of copper, there are many unscrupulous businessmen who steal table sales at night. In winter, the temperature of the glass case is too high, causing a lot of water leakage and thus causing losses to the water company. There is a large mechanical wear and tear, it is easy not allowed or broken.
Q：Regular water meter maintenance

Generally after the long-term use of the smart meter, there will be some scale, and these ditches formed in the smart meter can easily lead to smart meter measurement error, and may even lead to transmission errors. Therefore, regular maintenance and selection of smart meters are crucial. Regular cleanup is a necessary maintenance step when using smart meters. When using them, care must be taken to ensure the cleanliness around the smart meter when using them. Avoid some acid-base substances on the smart meter corrosion, but also to ensure that during the moisture-proof, which will lead to intelligent meter damage caused by the error, and even led to the smart meter damage; above the smart meter can not Place things, because the long-term placement of things will result in damage to the smart meter, if found in the smart meter has a problem, found a bad state, do not open the smart meter seal, privately operated is likely to lead to intelligent water meter The permanent damage, so it will give users unnecessary losses. Smart meters in the transport process to ensure that it is placed when placed horizontally, after all, a smart meter is an instrument, not only to ensure that it can be used, but also to ensure that it can accurately measure and transmit data.
Q：What factors should be considered when choosing a meter

Smart meter is discounted, is its value worthy of this price. Many of us do not know what kind of water meter we are right to choose from, and today we come to understand what factors should be considered when choosing a water meter.

Water meters must be included in the building should be installed on the introduction of water meter; building a certain part or individual equipment must be included in the water pipe should be installed on the water meter; residential building should be installed household meter .

The first thing to consider is the corresponding meter diameter, according to their own caliber to choose the diameter of the meter with the accompanying, so as to ensure the smooth installation and flow of normal flow. - Under normal circumstances, the pipe nominal diameter less than or equal to 50 mesh should be used rotor-type water meter, nominal diameter greater than 50mm should be used when the screw-wing water meter. In rotor-type dry and warm water meters, wet meters should be preferred. The following principles should be considered when determining the nominal diameter of a water meter:

1. When the water is uniform, should be designed to flow no more than the rated flow meter to determine the nominal diameter of the water meter. When used as a living (production) or fire fighting system, the rated flow of the meter does not include the flow of firefighting fluid. The firefighting flow should be verified and the firefighting flow rate checked so that the total flow does not exceed the maximum flow rate limit of the meter.

2. When the living (production) water is not uniform water, and its continuous peak load every day and night does not exceed 2 ~ 3h, according to the design of the second flow is not greater than the maximum flow meter to determine the nominal diameter of the water meter.

3. Newly built residential household water clothing, the nominal diameter of the general can be 15mm, but if the residence is equipped with self-closing toilet flushing valve, in order to ensure the necessary washing intensity, the nominal diameter of the water meter should not be less than 20mm.

Second, to consider the pressure loss of the water meter, the pressure loss of IC card water meter measuring accuracy is higher. Once again to consider the water meter range ratio, the range ratio is the main reason leading to the price of water meters, IC card water meter range than the gap, 200: 1 to 500: 1 have. The last thing to consider is the use of functional requirements of the environment, according to their actual needs to choose prepaid, remote valve control, waterproof, anti-attack and other functions.

When purchasing IC card water meter must be based on the above factors to be evaluated, not only to look at the price and underestimate the quality of the water meter itself, in the purchase must be combined with their own actual situation to be assessed, after all, is their own is the best.
Q：Smart meter card how to use?

IC card smart electronic water meter is very simple to use, when the user's amount of water dropped to a certain value, the computer module speed alarm sound, suggesting that users should pay card to buy water. If more than the amount of water, the computer module will automatically shut off the electric control valve, cut off the water supply. Until the user has inserted the IC card has been re-open the valve for water supply.

From the user's point of view, is the IC card card plug in the water meter. IC card water meter work process is as follows: The IC card with the amount of money into the water meter kind of IC card reader, the computer module to identify and download the amount of money, the valve opens, the user can use water. When the user is using water, the water collection device starts to collect the water consumption and converts the required electronic signal into the computer module for measurement, which is displayed on the LCD display module.
Q：Water meter manufacturers how to test the water meter?

Now the type of water meter is varied, but whether it is mechanical meter, smart meter, IOT meter or remote meter, are used for national legal water transfer settlement voucher. According to the relevant provisions of China's Metrology Law, the water meter belongs to the national compulsory appraisal measuring instrument. Each water meter must pass the first inspection, sampling inspection, bench inspection and third-party testing before it leaves the factory. Otherwise, it will not be used. The test of the water meter is a compulsory test, so how does the water meter manufacturer test the water meter?

Water meter test refers to a test of a new water meter that has not been tested to determine whether the metrological performance of the new water meter complies with the relevant requirements of the national standards and industry type approval and is based on the relevant provisions of the Metrology Law It is also necessary to carry out the first inspection. National Ministry of Construction also need to verify the meter for review, there is no test of the meter, it can not be accepted. Water meter manufacturers to test the progress of progress from the water meter manufacturers to undertake the work of the quality supervision departments to submit an application and submit inspection, the first inspection pass, the certificate issued by the quality supervision department, and paste the water meter certificate.

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