Know more about types of water meters

There are many different types of water meters in the market, such as multi-jet water meters, ultrasonic water meters, electromagnetic flow meters and so on.Let us look at the differences in their principles of operation and their advantages and disadvantages.

Multi-jet Water Meter

Multi-jet water meters are very accurate in small sizes and are commonly used up to 2inch sizes for residential and small commercial users. Multi-jet water meters use multiple ports surrounding an internal chamber to create multiple jets of water against an impeller, whose rotation speed depends on the velocity of water flow.

Ultrasonic Water Meter

Ultrasonic water meters come with two transducers which trigger sound waves. Sound waves determine the velocity of a water flowing in a pipe. Under no flow conditions, the frequencies of an ultrasonic wave transmitted into a pipe and its reflections from the fluid are the same. Under flowing conditions, the frequency of the reflected wave is different. The transmitter processes signals from the transmitted wave and its reflections to determine the flow rate. The signal provides the flow velocity and with the known tube cross section, the actual volume of water flowing through the sensor is computed.

Electromagnetic Flow Meter

Electromagnetic Flow meters are more common in the commercial and industrial buildings. Inside an electromagnetic flow meter, there is an electromagnetic coil that generates a magnetic field, and electrodes that capture voltage. The voltage sensed by the electrodes is processed by the transmitter to give standardised output signal or displayed in appropriate metering unit.

These are expensive units. Conductivity of the fluid flowing through the pipe must be higher so that magnetic coils can act as conductors. Bubbles of gas that form inside the meter can lead to error. Hence the flow meter requires electrical as well as mechanical cleaning at regular intervals.

Wuxi Zhongyi Smart Technology Co., Ltd is engaged in smart water meters.We not only have mechanical meters, but also ultrasonic meters,electromagnetic flow meters and other products,all available for your choice.