Endress+Hauser Proline Prowirl R 200 - Configuring the Output; Conditioning; Configuring the Low Flow Cut off

Commissioning Proline Prowirl R 200 HART
94 Endress+Hauser
10.4.8 Configuring the output conditioning
The Output conditioning wizard guides you systematically through all the parameters
that have to be set for configuring the output conditioning.
Navigation
"Setup" menu → Output conditioning
‣
Output conditioning
Display damping
→  94
Damping output 1
→  94
Damping output 2
→  94
Damping output 2
→  94
Parameter overview with brief description
Parameter Prerequisite Description User entry Factory setting
Display damping – Set display reaction time to
fluctuations in the measured
value.
0.0 to 999.9 s 0.0 s
Damping output 1 – Set the reaction time of the
output signal of the current
output to fluctuations in the
measured value.
0 to 999.9 s 1 s
Damping output 2 The measuring device has a
second current output.
Set the reaction time of the
output signal of the second
current output to fluctuations
in the measured value.
0 to 999.9 s 1 s
Damping output 2 The measuring device has a
pulse/frequency/switch
output.
Set the reaction time of the
output signal of the frequency
output to fluctuations in the
measured value.
0 to 999.9 s 1 s
10.4.9 Configuring the low flow cut off
The Low flow cut off wizard systematically guides the user through all the parameters
that must be set to configure low flow cut off.
The measuring signal must have a certain minimum signal amplitude so that the signals
can be evaluated without any errors. Using the nominal diameter, the corresponding flow
can also be derived from this amplitude. The minimum signal amplitude depends on the
setting for the sensitivity of the DSC sensor (s), the steam quality (x) and the force of the
vibrations present (a). The value mf corresponds to the lowest measurable flow velocity
without vibration (no wet steam) at a density of 1 kg/m
3
(0.0624 lbm/ft^3). The value mf
can be set in the range from 6 to 20 m/s (1.8 to 6 ft/s) (factory setting 12 m/s (3.7 ft/s))
with the Sensitivity parameter (value range 1 to 9, factory setting 5).
The value mf can be set in the range from 4.5 to 20 m/s (1.4 to 6 ft/s) for device versions
with the order code for "Calibration flow", option N "0.65% volume PremiumCal 5-point,
extended turndown". The lowest flow velocity that can be measured on account of the
signal amplitude v
AmpMin
is derived from the Sensitivity parameter and the steam quality
(x) or from the force of vibrations present (a).