#WATER FLOW METER ISO#

Water meters are generally owned, read and maintained by a public water provider such as a city, rural water association or private water company.

After processing by the microcontroller unit (MCU) in the electronic module, the data are transmitted to the LCD or output to an information management system. Mechanical water meters normally use a reed switch, hall or photoelectric coding register as the signal output. The latter integrates an electronic measurement component and a LCD with a mechanical water meter. Meters for reclaimed water have special lavender register covers to signify that the water should not be used for drinking.Īdditionally, there are electromechanical meters, like prepaid water meters and automatic meter reading meters. Specialty hot water meters are designed with materials that can withstand higher temperatures. Most meters in a typical water distribution system are designed to measure cold potable water only. There are also non-mechanical designs, for example, electromagnetic and ultrasonic meters, and meters designed for special uses. Velocity-based designs include single- and multi-jet meters and turbine meters. Common displacement designs include oscillating piston and nutating disc meters.

There are two common approaches to flow measurement: displacement and velocity, each making use of a variety of technologies.

#WATER FLOW METER ISO#

Outside of North America, most countries use ISO standards. In North America, standards for manufacturing water meters are set by the American Water Works Association. Several types of water meters are in common use, and may be characterized by the flow measurement method, the type of end-user, the required flow rates, and accuracy requirements. Modern meters typically can display rate-of-flow in addition to total volume. 3) or US gallons on a mechanical or electronic register.

In most of the world water meters are calibrated in cubic metres (m 3) or litres, but in the United States and some other countries water meters are calibrated in cubic feet (ft. They are also used to determine flow through a particular portion of the system. Water meters measure the volume of water used by residential and commercial building units that are supplied with water by a public water supply system. Water metering is the practice of measuring water use.

Water flow meter