ISO 9213:1992

Measurement of total discharge in open channels — Electromagnetic method using a full-channel-width coil

Specifies procedures for the establishment and operation of a gauging station, equipped with an electromagnetic flow-meter, in an open channel or a closed conduit with a free water surface. The field of application is limited to sites where the magnetic field is generated by an electromagnetic coil which traverses the full channel width. Does not apply to flow-meters which operate by using the Earth’s magnetic field.