Orientation - Endress+Hauser Proline Promag 50 Operating Instructions Manual

Proline Promag 50 PROFIBUS DP/PA
"
Endress+Hauser
3.2.3

Orientation

An optimum orientation position helps avoid gas and air accumulations and deposits in the
measuring tube. The measuring device, nevertheless, supplies a range of functions and accessories
for correct measuring of problematic fluids:
• Electrode Cleaning Circuit (ECC) for applications with accretive fluids, e.g. electrically
conductive deposits * "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 pressures → Page 88
• Exchangeable measuring electrodes for abrasive fluids (only Promag W) → Page 106
Vertical orientation
This is the ideal orientation for self-emptying piping systems and for use in conjunction with empty
pipe detection (EPD).
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 with the measuring device installed horizontally only
when the transmitter housing is facing upward (→ Fig. 11). Otherwise there is no guarantee that
empty pipe detection will respond if the measuring tube is only partially filled or empty.
A
2
Fig. 12: Horizontal orientation
1 EPD electrode for the detection of empty pipes (not with Promag H, DN 2...4)
2 Measuring electrodes for the signal acquisition
3 Reference electrode for potential matching (not for Promag H)
1
2
A
3
Installation
A0003206
A0003207
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