Orientation - Endress+Hauser PROline promag 10 Operating Instructions Manual

3 Installation
"
14
3.2.3

Orientation

An optimum orientation helps avoid gas and air accumulations and deposits in the
measuring tube. Promag, nevertheless, also offers the additional function of Empty Pipe
Detection (EPD) for detecting partially filled measuring tubes or if outgassing fluids or
fluctuating operating pressures are present (see Page 107)
Vertical orientation
This is the ideal orientation for self-emptying piping systems and for use in conjunction
with Empty Pipe Detection.
Fig. 9: 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 (Fig. 10). Otherwise there is no
guarantee that Empty Pipe Detection will respond if the measuring tube is only partially
filled or empty.
Fig. 10: Horizontal orientation
1 EPD electrode for the detection of empty pipes (not with Promag H, DN 2...4)
2 Measurement electrodes for the signal acquisition
3 Reference electrode for the potential equalisation (not with Promag H)
PROline Promag 10
Endress+Hauser