1.4.
Areas of application
The following chapter provides handling instructions for the TME400 turbine meter for
the purpose of safe and reliable operation of the device.
Some of the settings described below must not be made until you have read
the explanations in chapter4 Operation.
1.4.1.
Working principle of the TME400
The working principle of a mechanical turbine meter is based on the measurement of
the gas velocity of the flowing gas which powers a turbine wheel. The speed of the
turbine within the measuring range (Q
min
- Q
max
) is approximately proportional to the
mean gas velocity and thus the flow rate. The number of rotations, therefore, is a
measurement for the gas volume flowing through.
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