ABB CoriolisMaster FCM2000 Operating Instructions Manual page 68

Parameterization
Parameter
QmMax
100.00 kg/min
Damping
5.0 s
Low cutoff setting
2.1 %
Submenu
Field optimization
D correction
0.0000 kg/l
Qm correction
0.000 %
C correction tab. 1
0.00 %
C correction tab. 2
0.00 %
68
Value range / input type
QmaxDN float
1 ... 100 s float
Technician*
0 ... 10 % float
Technician*
Technician* float
-50 ... 50 g/l float
Technician*
-5 ... 5 % float
Technician*
-1000 ... +1000 %
Technician
CoriolisMaster FCM2000
Note
The flow range can be set between the limits from
0.01 ... 1.0 QmMax Meter Pipe and applies to
both flow directions.
QmMax is the value used as the basis for the Qm-
current output value, the low flow cutoff value and
the Qm-alarm limits. (QmMax = 20 mA for Qm-
current output.)
Important:
If a new instrument size is entered the
value of QmMax is set to QmMax Meter
Pipe.
The damping can be set within the range from 1 s
to a maximum of 100 s. It represents the time
required for the converter to reach the value of
99% of a step change.
The value set is the low flow cutoff limit in percent
of the QmMax setting. The maximum low flow
cutoff setting is 10<:hs>%. The switching
hysteresis is 0.1%. If a value of 0% is entered for
the low flow cutoff, then the switching hysteresis is
also turned off.
In order to attain an accuracy in the density
measurement which comes close to the
reproducibility of 0.0001 g/ml, this factor can be
used to perform an optimization in the field. The
limits of this entry lie at ±0,05 g/ml.
In order to attain an accuracy in the flow
measurement which comes close to the
reproducibility of at least 0,1 % of the measured
value or even exceeds this, this factor can be
used to undertake an optimization in the field. This
value acts as a correction value of the current
mass flow. It is given as percent of the current
measured value. The limits of this entry lie at ±5
% of the measured value.
The concentration accuracy can be optimized in
the field to come close to the repproducibilty of the
meter. The correction value has to be entered in
the selected unit.
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