Type 8071

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5.

Product installation

5.1. Installation notes

Note:

The device is not suitable for use in gaseous media and steam.

The flowmeter can be installed in any orientation as long as the rotor shafts are always in a horizontal plane.

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The following installation conditions must also be observed:

• The pipe always has to be filled with fluid at all times near the device.

• The pipe design must be such that no air bubbles or cavitation can form within the medium near the device at any time.

• We recommend the installation of a 75 µm strainer as close as possible to the inlet side of the meter, to prevent damage from particles,

• Air purges can damage the appliance and should therefore be avoided.

6.

Product operation

6.1. Measuring principle

When liquid flows through the pipe, the rotors turn. This rotation produces a measuring signal in the associated Hall sensor. The rotation

frequency of this signal is proportional to the flow velocity of the fluid. The volume of the fluid being transferred in this way is exactly

determined through the sensor geometry.

A conversion coefficient, specific to each meter size, enables the conversion of this frequency into a flow rate. The standard K-factor

depending on the meter size is available in the flowmeter’s operating instructions, see Type 8071 . To improve the measurement deviation,

a device-specific K-factor is given on the device label.