Water Meter Tips

Water meter tips

Water is the source of life, and human life activities cannot do without it. In daily life, we often encounter problems such as faucet leakage and water meter rotation. These problems may seem small, but often they are known for no reason. Shengda believes that mastering the relevant knowledge of water meters and understanding the problem lies in order to use water scientifically and reasonably.

With the rapid development and transformation of the Internet, mobile payments, and electronic technology, the functions of intelligent water meters are becoming increasingly powerful. How to organically combine communication technology and mobile payment technology and integrate them into intelligent water meters to achieve fast meter reading and timely payment functions is the theme and direction of industry research.

How to check if the water meter is qualified?

Firstly, it is important to look at the appearance. The water meter should have markings such as the factory logo, water flow direction arrow, nominal diameter, and measurement grade. After verification, qualified water meters should be labeled with a qualified mark and seal issued by a legally established or authorized metrological verification institution by the market supervision and management department.

What is the error of the water meter?

Maximum allowable error in low zone: The maximum allowable error in volume discharge between the minimum flow rate (Q1) and the boundary flow rate (Q2) (excluding Q2) is ± 5%.

Maximum allowable error in high zone: The maximum allowable error in discharging volume at the flow rate between the boundary flow rate (Q2) (including Q2) and the overload flow rate (Q4) is ± 2%.

How to choose the caliber of a water meter?

The diameter of the water meter should be selected based on the diameter of the water pipe. The nominal diameter of the water meter refers to the inner diameter. A water meter with a nominal diameter of DN15 should be used for the 4 minute water pipe, a water meter with a nominal diameter of DN20 should be used for the 6 minute water pipe, and a water meter with a nominal diameter of DN25 should be used for the 1 inch water pipe.

What is the rotation cycle of the water meter?

For nominal diameters of DN50 and below, and the commonly used flow rate Q Å is not greater than 16m ³/ The water meter of h is only for the first mandatory calibration before installation, and it is to be used within a specified period. The expiration date is subject to rotation, and the usage period is as follows:

The service life of water meters with a nominal diameter not exceeding DN25 shall not exceed 6 years; The service life of water meters with a nominal diameter exceeding DN25 but not exceeding DN50 shall not exceed 4 years; The nominal diameter exceeds DN50 or the commonly used flow rate Q Å exceeds 16m ³/ The calibration cycle of the water meter for h is generally 2 years.