FMC Corporation - Talstar 80 - Handbuch (Seite 16)

Installation Proline Promass 80 PROFIBUS PA
16
3.2.3 Orientation
Make sure that the direction of the arrow on the nameplate of the sensor matches the direction of
flow (direction in which the fluid flows through the pipe).
Orientation Promass A
Vertical:
Recommended orientation with upward direction of flow. When fluid is not flowing, entrained
solids will sink down and gases will rise away from the measuring tube. The measuring tubes can
be completely drained and protected against solids buildup.
Horizontal:
When installation is correct the transmitter housing is above or below the pipe. This arrangement
means that no gas or solid deposits can accumulate in the curved measuring tube (single-tube
system).
Do not install the sensor in such a way that it is suspended in the pipe, in other words without
support or attachment. This is to avoid excessive strain at the process connection. The base plate of
the sensor housing is designed for mounting on a tabletop, wall or post.
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Fig. 8: Vertical and horizontal orientation (Promass A)
Orientation Promass F, M, E, H, I, S, P
Make sure that the direction of the arrow on the nameplate of the sensor matches the direction of
flow (direction in which the fluid flows through the pipe).
Vertical:
Recommended orientation with upward direction of flow (View V). When fluid is not flowing,
entrained solids will sink down and gases will rise away from the measuring tube. The measuring
tubes can be completely drained and protected against solids buildup.
Horizontal (Promass F, M, E):
The measuring tubes of Promass F, M and E must be horizontal and beside each other. When
installation is correct the transmitter housing is above or below the pipe (View H1/H2). Always
avoid having the transmitter housing in the same horizontal plane as the pipe.