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M20
Damping
The damping factor ranges from 1 to
999 seconds. 1 means no damping;
999 means maximum damping. The
damping function stabilizes the flow
display. Typically, a damping factor
of 3 to 10 is recommended for
applications.
M21
Low Vel. Cutoff
The low flow cutoff is used to make
the system display 0 at minimum
flow. For example, if the minimum
value is set to 0.03, the system will
regard all measured flow rate values
from -0.03 to + 0.03 as "0". In
general, a value of 0.03 is
recommended for most applications.
M22
Zero Settings
When the fluid is in a static state, the
displayed value is called zero point.
If the zero point in the flow meter is
not zero, the difference is added to
the actual flow values and
measurement differences occur in
the flow meter.
The zero point must be set after the
sensors are installed and the flow in
the pipe is in absolute static condition
(no fluid movement in the pipe). In this
way, the zero point resulting from
different pipe mounting locations and
parameters can be eliminated. This
increases the measurement accuracy
at low flow and eliminates the flow
offset.
Select "Yes"; reset the zero point set
by the user.
© PCE Instruments
22
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