Siemens SITRANS FCS400 Guia De Inicio Rapido página 4

2. Horizontal installation, tubes down (recommended for liquid applications)
Figure 3-4 Horizontal orientation, tubes down
3. Horizontal installation, tubes up (recommended for gas applications)
Figure 3-5 Horizontal orientation; tubes up
Note
Hygienic applications
In 3A and EHEDG certified hygienic applications the flowmeter must be installed vertically as shown in 1 above.
Installation in a drop line
Installation in a drop line is only recommended if a pipeline reduction or orifice with a smaller cross-section can be installed
to create back-pressure and prevent the sensor from being partially drained while measuring.
① Back pressure orifice
② On / off valve
Figure 3-6 Installation in drop line
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FCS400 sensor
A5E03649755-008, 05/2014