Proline Prowirl 73 Operation
Endress+Hauser 41
5.4.3 Device variables and process variables
Device variables:
The following device variables are available via the HART protocol:
Process variables:
At the factory, the process variables are assigned to the following device variables:
• Primary process variable (PV) volume flow
• Secondary process variable (SV) temperature
• Third process variable (TV) mass flow
• Fourth process variable (FV) totalizer 1
ID (decimal) Device variable
0 OFF (not assigned)
1 Volume flow
2 Temperature
3 Mass flow
4 Corrected volume flow
5Heat flow
6Density
7 Specific enthalpy
8 Saturation steam pressure (saturated steam)
9Vortex frequency
10 Electronics temperature
11 Reynolds number
12 Velocity
13 Density (external measured variable)
14 Pressure (external measured variable)
15 Temperature (external measured variable)
250 Totalizer 1
251 Totalizer 2