Siemens SITRANS FC430 Operating Instructions Manual page 59

Avoid vibrations
● Make sure that any valves or pumps upstream of the sensor do not cavitate and do not
send vibrations into the sensor.
● Decouple vibrating pipeline from the flow sensor using flexible tube or couplings.
Figure 4-8
Figure 4-9
Avoid cross talk
If operating more than one flowmeter in one or multiple interconnected pipelines there is a risk
of cross talk.
Prevent cross talk in one of the following ways:
● Mount sensors on separate frames
● Decouple the pipeline using flexible tube or couplings
Figure 4-10
Figure 4-11
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA
Non-flexible pipes not recommended in vibrating environment
Flexible pipes recommended in vibrating environment
High risk of cross talk when using non-flexible pipes
Low risk of cross talk when using flexible pipes and separate frames
Installing/mounting
4.2 Installation instructions
59