In electromechanical architecture, compared to the power meter and the oil meter, the water meter is "worthless," and it is almost often neglected. However, if the routine consideration is not apparent at the early stage, once the property is obtained at the later stage of the project a lot of work and work shall be billed. Therefore, we are going to tell you the advantages and disadvantages of all water meters, including IC card pays intelligent water meter, remote water meter and https://www.drurylandetheatre.com/dual-channel-ultrasonic-water-meter/ ultrasonic water meter mostly for the conventional mechanical water meter.

Meter of Ultrasonic Water
At the end of the flow tube, there are two transductors. The transducer transmits an ultrasonic (downstream) to transducer B, and an ultrasonic (upstream) to transducer A transmits transducer B. There is a certain time gap in the propagation phase between ultrasonic signals downstream and upstream, the flow of the meter is determined by the integrator calculator chip.
Advantages: high accuracy, no wear, good defense, manipulation-resistant;
Disadvantages: price is somewhat strong

Mechanical meter for water
The water flow affects the blades around the wheel which causes the impeller to spin. The bigger the tap, the quicker the movement of water, the quicker the impeller would spin. The shaft of the impeller enters vertically the middle plate. On the shaft is a pinion. It is used to mesh the "decimal gear" to accumulate the amount of revolutions.
Benefits: easy, affordable, no power supply
Benefits: hard meter interpretation, manual mistake.

Smart water meter prepaid IC card
The IC card with the sum of money is placed in the water meter in the IC card reader. The valve is opened and the consumer may use water normally until the quantity is determined and downloaded by the microcomputer module. When the consumer consumes water, the water quantity collector begins collecting water intake and transforms it into the required electronic signal that is sent to the measuring microcomputer module, and seen on the LCD display module. As the volume of water the consumer used falls to a certain value, the microcomputer module alerts the user to the payment of the water on the wallet. When the quantity of water reaches, the electrical control mechanism is immediately shut off and the water flow is cut off.
Advantages: first pay, then use water mode, simple to use, manual error reduction.
Benefits: comparatively costly, single caliber.

Meter of Remote Water
This water meter may be differentiated by form of pulse and type of direct reading. When ordering, special consideration should be given. The direct method of reading will be associated directly with the control system for energy use, whereas the pulse type cannot interpret the data directly.

1. Pulse type: A sensor on the meter counter is mounted. A pulse signal is sent at any turn of the word wheel. The device gathers, accumulates and stores each pulse signal, then the read meter or the upper computer reads remotely. Main types: photoelectric pulse form conversion, reed pulse type, hall pulse type feature.
Advantages: unified meter reading control for durability and anti-interference, which significantly reduces metering staff's work speed.
Disadvantages: the water meter has to be relatively centralized and the expense is heavy.
Power supply mode: battery or external DC power supply, link the concentrator to 220 V/50 Hz AC.

2. Direct lecture
On one side of each word wheel of the water meter counter, some sensors are mounted, and on the other side the corresponding sensors are installed. The location of the word wheel is calculated by the relevant sensor and sensor condition such that the data can be read out and the remote meter is read by the read meter or the device above. Main types: direct-to-read photo-electric conversion delivery, direct-to-read touch coding, hard-to-read reflections, direct contact resistance, direct digital camera readings.
Benefits (compared with pulse type)

Data on the meter are the monitor data on the dial rather than the pulse accumulation data;
The data are mechanically registered on the word wheel, so no power supply is necessary in normal times and it is only supplied when the data is read;
The focuser must be wired to 220 V/50 Hz AC.