Proline Promag 51
Installation
Hauser
15
3.2.3
Orientation
An optimum orientation helps avoid gas and air accumulations and deposits in the measuring tube.
However, Promag also offers the additional empty pipe detection function for detecting partially
filled measuring tubes, e.g. in the case of degassing fluids or varying process pressure:
• Electrode Cleaning function (ECC) to prevent electrically conductive buildup in the measuring
tube, e.g. in the case of fluids that cake (
"Description of Device Functions" manual)
• Empty Pipe Detection (EPD) ensures the detection of partially filled measuring tubes,
e.g. in the case of degassing fluids or varying process pressure (
59)
Vertical orientation
This is the ideal orientation for self-emptying piping systems and for use in conjunction with Empty
Pipe Detection.
A0008158
Fig. 11:
Vertical orientation
Horizontal orientation
The measuring electrode plane should be horizontal. This prevents brief insulation of the two
electrodes by entrained air bubbles.
"
Caution!
Empty Pipe Detection functions correctly only when the measuring device is installed horizontally
and the transmitter housing is facing upward (
11). Otherwise there is no guarantee that
Empty Pipe Detection will respond if the measuring tube is only partially filled or empty.
A0003207
Fig. 12:
Horizontal orientation
1
EPD electrode for the detection of empty pipes
2
Measurement electrodes for the signal acquisition
3
Reference electrode for the potential equalization
A
1
2
2
A
3
