Promag 50
Installation
Hauser
15
3.2.3
Orientation
An optimum orientation position helps avoid gas and air accumulations and deposits in the
measuring tube. However, Promag offers the additional Empty Pipe Detection (EPD) function to
ensure the detection of partially filled measuring tubes, e.g. in the case of degassing fluids or varying
process pressure:
• 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 (
73)
• Exchangeable Measuring Electrodes for abrasive fluids (
92)
Vertical orientation
This is the ideal orientation for self-emptying piping systems and for use in conjunction with Empty
Pipe Detection.
A0008158
Fig. 10:
Vertical orientation
Horizontal orientation
The measuring electrode plane should be horizontal. This prevents brief insulation of the two
measuring 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 (
10). Otherwise there is no guarantee that
Empty Pipe Detection will respond if the measuring tube is only partially filled or empty.
A0003207
Fig. 11:
Horizontal orientation
1
EPD electrode for the detection of empty pipes (not with Promag D and Promag H (DN 2 to 15; 1/12" to ½"))
2
Measuring electrodes for signal detection
3
Reference electrode for the potential equalization (not with Promag D and H)
A
1
2
2
A
3
Содержание Proline Promag 50
Страница 2: ......
Страница 120: ...Promag 50 Index 120 Endress Hauser ...
Страница 122: ...www endress com worldwide BA00046D 06 EN 14 11 71136623 FM SGML6 0 ProMoDo ...