Net Heat Quantity Calculation (Optional) - Siemens SITRANS FX330 Operating Instructions Manual

SITRANS FX330

2.2.9 Net heat quantity calculation (optional)

When measuring the net heat, the energy consumption of steam and hot water can be exactly
determined. To do this, the vortex flowmeter is built into the inlet run of the plant component to
be measured. An additional temperature sensor is installed in the return flow and then
connected to the signal converter, either via an additional current input or via HART
Figure 2-6: Measuring heat difference
1 Flowmeter with built-in temperature sensor
2 Temperature sensor
3 Heat exchanger
4 Heat flow
The measuring device can now determine the gross heat and measure the net heat from the
temperature difference determined by the second temperature sensor.
INFORMATION!
Net heat quantity calculation is an optional feature which can be unlocked in menu "C6.3 Extras".
Please contact the manufacturer to obtain the four digit code required to enable this feature.
For programming examples refer to Net heat measurement on page 85
05/2016 - A5E36751269-AA www.siemens.com/flow
DEVICE DESCRIPTION
.
2
®
.
19