Siemens SITRANS FMS500 Operating Instructions Manual page 21

Orientation
The sensor operates in all orientations, but Siemens has the following recommendations:
• Vertical installation with an upwards flow
Figure 4-7
Note
Gas/air bubbles in the liquid
A vertical installation minimizes any negative effect of gas/air bubbles in the liquid
• Horizontal installation, terminal box upwards or downwards
Figure 4-8
Note
Empty pipe detection
For applications with empty pipe detection, the sensor can be tilted 45°, as shown above.
SITRANS FMS500
Operating Instructions, 01/2024, A5E52677520-AA
Vertical orientation, upwards flow
NOTICE
Abrasive liquids / liquids containing solid particles
A vertical installation minimizes wear and deposits in the sensor
Horizontal installation, various terminal box positions
NOTICE
Do NOT mount the sensor with the terminal box sideways
This will position the electrodes at the top where there is possibility for air bubbles and at
the bottom where there is possibility for mud, sludge, sand etc.
Installing/Mounting
4.5 Orienting the sensor
21