Proline Promag P 100
Endress+Hauser 33
A0017063
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).
An optimum orientation position helps avoid gas and air accumulations and deposits in the
measuring tube.
The measuring device also offers the empty pipe detection function to detect partially filled
measuring pipes in the event of outgassing fluids or variable process pressures.
Vertical
This is the optimum orientation for self-emptying piping systems and for use in conjunction with
empty pipe detection.
A0015591
Horizontal
The measuring electrode plane must be horizontal. This prevents brief insulation of the two
measuring electrodes by entrained air bubbles.
With horizontal orientation, empty pipe detection only works if the transmitter housing is
pointing upwards as otherwise there is no guarantee that the empty pipe detection function
will actually respond to a partially filled or empty measuring tube.
A0016260
20 Horizontal orientation
1 EPD electrode for empty pipe detection
2 Measuring electrodes for signal detection
3 Reference electrode for potential equalization
Inlet and outlet runs
If possible, install the sensor upstream from fittings such as valves, T-pieces or elbows.
Observe the following inlet and outlet runs to comply with accuracy specifications:
• Inlet run ≥ 5 × DN
• Outlet run ≥ 2 × DN
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