Siemens SITRANS FX330 - Net Heat Measurement

OPERATION 6
91
SITRANS FX330
www.siemens.com/flow08/2022 - A5E36751269-AG EN
6.8.3 Net heat measurement
To determine the amount of energy, which is consumed by a plant, the gross heat quantity must
be reduced by the amount of energy, which is returned to the energy cycle. In the following
configuration example it is assumed that the gross heat quantity is determined for superheated
steam by the internal sensors and the outlet temperature value is fed into the device via the
current input.
Function Parameters
C6.3 Extras Activate one of the meter type options "Heat" (for saturated steam and
temperature compensation) or "Heat & Dens. by Pres." (for superheated
steam and density compensation by temperature and pressure) by entering
the proper four digit code (if not activated by order). This needs to be done
once.
Enter process parameters:
C1.1 Fluid Steam
C1.2 Medium Superheated Steam
C1.5 Current Input
C1.5.1 Function On
C1.5.2 Current Input Meas. Temperature External
C1.6 Temp. Sensor
C1.6.1 Temp. Source1 Internal
C1.6.2 Temp. Source2 External
C1.7 Pressure Sensor
C.1.7.1 Pressure Source Internal
C6.5 Units Select units of temperature, pressure, volume flow, power and energy.
C1.10 Operating Values
C1.10.3 Oper. Density Operating density is important for sensor limits but will not be used during
operation.
Configure output and totalizers:
C2.1 Current Output
C2.1.1 Current Out. Meas. Net Power
C2.1.2 0% Range; C2.1.3 100% Range Enter value for 0% and 100% in selected unit.
C4.2 Energy Totalizer
C4.2.1 Measurement Net Power
C4.2.5 Start Totalizer? Yes
Display two values on local display: (net power, net energy)
C5.3.1 Function Two Values
C5.3.2 Measurement 1. Line Net Power
C5.3.6 Measurement 2. Line Net Energy
Table 6-38: Net heat measurement
INFORMATION!
This is an example setup for basic net heat measurement. Other setup options are feasible.