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4.9 How to use the damper
The damper acts as a filter for a stable reading. If ‘0’ is entered in window M40, that means
there is no damping. A bigger number brings a more stable effect. But bigger damper
numbers will prevent the instrument from acting quickly.
Numbers 0 to 30 are commonly used for the damper value. Default value is 10 seconds.
4.10 How to use the zero-cutoff function
The number displayed in window M41 is called the lower flow rate cut-off value. The flow
meter will replace these flow rate values that are absolutely less than the low-cutoff value
with ‘0’. This means the flow meter will avoid any invalid accumulation when the actual flow
is below the zero-cutoff value. Generally the default value is 0.03m/s
The low-cutoff value does not affect the flow measurement when the actual flow is
absolutely greater than the low-cutoff value.
4.11 How to setup a zero point
There exists a ‘Zero Point’ with certain installation which means the flow meter will display
a non-zero value when the flow is absolutely stopped. In this case, setting a zero point with
the function in window M42 will bring a more accurate measurement result.
Make sure that there is no liquid running inside the pipe, and then run the function in
window M42 by pressing the ENT key.
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