SITRANS FM100
A5E48762204-AA page 23
10.4.1 Flow
10.4.1.1 Unit
The displayed unit for the flow measurement can be selected from various
predefined standard units. It is also possible to define a user-defined unit ("user"),
here the "user unit" must be in LPM (liters / min.) be programmed:
e.g. Unit User = 100 LPM, if Q = 500 LPM then the display shows 5 users.
10.4.1.2 Separation
The parameter Separation sets the flow rate below which the measured value is
set to "0". If this function is active, the flow value "0" is shown in blue colour in the
display.
10.4.1.3 Simulation mode
See section 10.4.5
10.4.2 Volume
10.4.2.1 Counter type
Absolute:
Regardless of the flow direction, the calculated partial volume is added to the
counters.
Bidirectional:
Depending on the flow direction, the calculated partial volume is added or
subtracted to the counters. If the measured flow value is negative, the volume
value goes down from measurement to measurement (possibly into the negative
range).
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