Mechanical water meters and smart water meters differ in many aspects:
1. Functionality:
Smart water meters have a variety of functions:
Remote control function: Smart water meters have the function of remotely controlling the switch of water meters, which provides great convenience for water supply department management and user use. For example, in some communities, if a certain owner defaults on water bills, the water supply department can remotely close the valve of the user's water meter to restrict water supply without going to the site; when carrying out pipeline maintenance, the water meter valve in the area can also be remotely closed. Mechanical water meters do not have this remote control capability at all, and can only control the water flow by manually shutting off the valve in front of the meter. If it is necessary to limit the water use of a certain user, it can only be done manually on site.
Remote meter reading and recharge function: Smart water meters can realize remote meter reading. As long as the corresponding meter reading device sends instructions, the data on the water meter will be uploaded to the corresponding database, realizing automated meter reading and billing operations, greatly improving work efficiency and reducing labor costs. It can also realize the prepayment function, such as using prepaid card recharge operation or direct water charge through mobile phone APP, etc., and it can also remind users when the balance in the card is insufficient. On the contrary, ordinary mechanical water meters must be read by staff at the property or relevant management department to read the value and collect water fees. It is impossible to realize prepayment. The whole process is inefficient and not convenient.
Mechanical water meters have a single function: the most basic function of mechanical water meters is to measure water flow. The water consumption can only be determined by mechanically reading the numbers on the water meter. There may be a risk of reading errors when reading the meter manually, and regular manual door-to-door meter reading is required. When facing large-scale user meter reading, the workload is huge and the efficiency is extremely low. At the same time, there are no other extended functions such as prepayment and remote operation, which makes it difficult to meet the needs of modern efficient and information-based water resource management.
2. Measuring accuracy:
Smart water meters are more accurate: Smart water meters use advanced sensing technology and high-precision sensors. For example, some ultrasonic water meters use ultrasonic waves to measure water flow velocity and then determine water flow. Compared with mechanical water meters, they can measure water consumption more accurately. In addition, smart water meters also have data processing and error correction functions, which can monitor the operating status of water meters in real time and correct the metering errors caused by external factors (such as water flow fluctuations, water hammer effects, etc.), thereby improving the accuracy of measurement.
Mechanical water meters have limitations: The metering accuracy of mechanical water meters is relatively limited. It mainly relies on the rotation of the impeller to measure. The rotation of the impeller is easily affected by factors such as water flow conditions (such as uneven water flow, impurities that affect the stability of impeller rotation, etc.), wear of internal mechanical parts (affecting the conversion relationship between the number of impeller rotations and water volume), etc. And once the water meter is used for a long time or there are slight changes in internal parts, the metering accuracy will decrease, and the adjustment is relatively troublesome. If the accuracy is to be improved, it is usually solved by replacing the water meter as a whole.
3. Use and maintenance:
Smart water meters are easier to manage: From the perspective of ease of use, users can directly view their water use data through mobile phone APP or related equipment. Smart water meters can also record water use habits and other data to facilitate users to manage water conservation; while mechanical water meter users can only check the readings at the water meter installation site or wait for the meter reader to inform the water consumption. In terms of maintenance, smart water meters have automation and remote monitoring functions, which can reduce the workload of manual maintenance. For example, smart water meters can remotely monitor their own power and operating status, and notify maintenance personnel in time if there is a problem; and when a water pipe leak is detected, an alarm will be automatically issued and the user will be notified, avoiding waste and losses caused by leaks.
Mechanical water meters are more traditional: Mechanical water meters are relatively complicated to maintain. Due to their complex mechanical structure, they need to be cleaned and maintained frequently. For wet water meters, when the water quality is poor, the internal parts of the water meter are prone to rust and blockage. Regular cleaning of the water meter filter and checking the flexibility of the pointer rotation are necessary to ensure the normal operation of the water meter; and with the extension of the use time or the change of the use environment (such as high temperature, severe cold, etc.), the wear and damage of mechanical parts will be accelerated, and the service life is shorter than that of smart water meters.
