Siemens SITRANS P300 Operating Instructions Manual page 83

"Mass", "Volume of flow" and "Mass of flow" are marked as inactive and are given the status
CONSTANT.
Description
Figure 7-4 Measurement type "User"
DV Device Variable
PV Primary Variable
SV Secondary Variable
TV Tertiary Variable
QV Quarternary Variable
The first function, "Input scaling, pressure", defines here too the pressure range which is
used by the customized characteristic curve. Ideally, this range corresponds to the sensor
limits. In the calculation example, 0 and 2 bar are assumed. This means that with process
pressure of 0.5 bar, there is an input value of 25% on the characteristic curve.
SITRANS P300 with HART communication
Operating Instructions, 06/2005, A5E00359579-02
7.4 Selecting the measurement type
MA Zero value
ME Limit value
Operating functions via HART
7-9