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Water metering is the process of measuring water use. Water meters are used to measure the volume of water used by residential and commercial building that are supplied with water by a public water supply system/common water supply. Water meters can also be used at the water source, well, or throughout a water system to determine flow through a particular portion of the system.
There are several types of water meters in common use. The choice depends on the flow measurement method, the type of end user, the required flow rates, and accuracy requirements. There are several types of registers on water meters to get reading. A standard register normally has a dial similar to a clock, with gradations around the perimeter to indicate water usage measured by the meter, as well as a set of odometer wheels similar to that in a car.
With Automatic Meter Reading, we have developed pulse or encoder registers to produce electronic output for radio transmitters, reading storage devices, and data logging devices. Pulse meters send a digital or analog electronic pulse to a recording device. Encoder registers have an electronic means for an external device to interrogate the register for either the position of the odometer wheels or a stored electronic reading. Frequent transmissions of consumption can be used to give smart meter functionality.
There are also some specialized types of registers such as meters with an LCD display instead of mechanical odometers, and registers to output data or pulses to a variety of recording and controller devices. For industrial applications, output is often 4-20 mA analog, for the recording or control of different flow rates in addition to totalization.
Staring from simple mechanical water meters we also have the complete solutions for water meter reading and billing generation with developed software system. The various carrier used for such reading at remote distance from installation are WIRELINE, RF, GPRS, GSM, CDMA etc….Pre paid water meters can also be available which only supply water until predetermined charges has been paid or otherwise STOP the flow.
The benefits of metering are that
In conjunction with volumetric pricing it provides an incentive for water conservation,
It helps to detect water leaks in the distribution network, thus providing a basis for the reduction of Non-revenue water;
It is a precondition for quantity-targeting of water subsidies to the poor.