Proline Promass P 300
46 Endress+Hauser
Mounting location
A0028772
To prevent measuring errors arising from accumulation of gas bubbles in the measuring tube, avoid
the following mounting locations in the pipe:
• Highest point of a pipeline.
• Directly upstream of a free pipe outlet in a down pipe.
Installation in down pipes
However, the following installation suggestion allows for installation in an open vertical pipeline.
Pipe restrictions or the use of an orifice with a smaller cross-section than the nominal diameter
prevent the sensor running empty while measurement is in progress.
A0028773
20 Installation in a down pipe (e.g. for batching applications)
1 Supply tank
2 Sensor
3 Orifice plate, pipe restriction
4 Valve
5 Batching tank
DN Ø orifice plate, pipe restriction
[mm] [in] [mm] [in]
8 ³⁄₈ 6 0.24
15 ½ 10 0.40
25 1 14 0.55
40 1½ 22 0.87
50 2 28 1.10
Orientation
The direction of the arrow on the sensor nameplate helps you to install the sensor according to the
flow direction (direction of medium flow through the piping).
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