Technical data
Proline Prowirl F 200 PROFIBUS PA
202
Hauser
Mass flow (user-specific liquids)
To specify the system accuracy, Hauser requires information about the type of
liquid and its operating temperature or information in table form about the dependency
between the liquid density and the temperature.
Example
• Acetone is to be measured at fluid temperatures from +70 to +90 °C (+158 to +194 °F).
• For this purpose, the
Reference temperature
parameter (7703) (here 80 °C (176 °F)),
Reference density
parameter (7700) (here 720.00 kg/m
3
) and
Linear expansion
coefficient
parameter (7621) (here 18.0298 × 10
-4
1/°C) must be entered in the
transmitter.
• The overall system uncertainty, which is less than 0.9 % for the example above, is
comprised of the following measurement uncertainties: uncertainty of volume flow
measurement, uncertainty of temperature measurement, uncertainty of the density-
temperature correlation used (including the resulting uncertainty of density).
Mass flow (other media)
Depends on the selected fluid and the pressure value, which is specified in the parameters.
Individual error analysis must be performed.
Accuracy of outputs
The outputs have the following base accuracy specifications.
Pulse/frequency output
o.r. = of reading
Accuracy
Max. ±100 ppm o.r.
Repeatability
o.r. = of reading
100 D
·
i
³
V
½
r =
A0034417
26
[% o.r.]
1000
10000
100000
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
[%]
V / D
i
³
A0034414
27
Repeatability = 0.1 % o.r. at a measured volume [m
3
] of V = 1000 ⋅ D
i
3
Summary of Contents for Proline Prowirl F 200
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