Commissioning
Proline Prowirl F 200 PROFIBUS PA
128
Hauser
p = Process pressure
ρ = Density
Pre-programmed gases
The following gases are pre-programmed in the flow computer:
Hydrogen
Helium 4
Neon
Argon
Krypton
Xenon
Nitrogen
Oxygen
Chlorine
Ammonia
Carbon monoxide
Carbon dioxide
Sulfur dioxide
Hydrogen sulfide
Hydrogen chloride
Methane
Ethane
Propane
Butane
Ethylene (ethene)
Vinyl chloride
Mixtures of up to 8 components of these gases
1)
The energy flow is calculated as per ISO 6976 (contains GPA 2172) or AGA5 - in relation to the net
calorific value or gross calorific value .
Energy flow calculation
Volume flow × operating density × specific enthalpy
• Operating density for saturated steam and water: depends on the temperature
• Operating density for superheated steam, natural gas ISO 6976 (contains GPA 2172),
natural gasAGA5: depends on the temperature and pressure
Heat flow difference
• Between saturated steam upstream from a heat exchanger and condensate downstream
from the heat exchanger (second temperature read in via PROFIBUS PA) in accordance
• Between warm and cold water (second temperature read in via PROFIBUS PA) in
accordance with IAPWS-IF97/ASME
Vapor pressure and steam temperature
The measuring device can perform the following in saturated steam measurements
between the feed line and return line of any heating liquid (second temperature read in via
PROFIBUS PA and Cp value entered:
• Calculation of saturation pressure of steam from the measured temperature and output
in accordance with IAPWS-IF97/ASME
• Calculation of saturation temperature of steam from the preset pressure and output in
accordance with IAPWS-IF97/ASME
Saturated steam alarm
In applications involving the measurement of superheated steam, the measuring device
can trigger a saturated steam alarm when the value approaches the saturation curve.
Volume flow, mass flow and energy flow
Using the
Wet Steam Detection/Measurement
application packages, the measuring
device can correct the measured variables "volume flow", "mass flow" and "energy flow"
depending on the quality of the steam.
For detailed information on the correction of these measured variables, see Special
Documentation for
Wet Steam Detection
application package and
Wet Steam
Measurement
2)
From steam data as per IAPWS-IF97 (ASME), for the measured temperature and the specified pressure
Summary of Contents for Proline Prowirl F 200
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