Proline Promass 84F, 84M
Hauser
19
Inlet and outlet runs
There are no installation requirements regarding inlet and outlet runs.
Length of connecting cable
remote version
max. 20 m
System pressure
It is important to ensure that cavitation does not occur, because it would influence the oscillation of the
measuring tube. No special measures need to be taken for fluids which have properties similar to water under
normal conditions.
In the case of liquids with a low boiling point (hydrocarbons, solvents, liquefied gases) or in suction lines, it is
important to ensure that pressure does not drop below the vapour pressure and that the liquid does not start
to boil. It is also important to ensure that the gases that occur naturally in many liquids do not outgas. Such
effects can be prevented when system pressure is sufficiently high.
Consequently, it is generally best to install the sensor:
• downstream from pumps (no danger of vacuum),
• at the lowest point in a vertical pipe.
