Siemens SITRANS F M Anleitung Seite 5

SITRANS F M electromagnetic flowmeter type MAG 1100 F, DN 10 - DN 100
Installation, general
(continued)
3/8" - 4"
Therefore avoid:
• Installation at the highest point in the pipe
system
• Installation in vertical pipes with free outlet
For partially filled pipes or pipes with down-
ward flow and free outlet the flowmeter should
be located in a U-tube.
Installation in vertical pipes
Recommended flow direction: upwards. This
minimizes the effect on the measurement of
any gas/air bubbles in the liquid.
Installation in horizontal pipes
The sensor must be mounted as shown in
the upper figure. Do not mount the sensor as
shown in the lower figure. 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.
If using empty pipe detection, the sensor can
be tilted 45°, as shown in the upper figure.
Measuring abrasive liquids and liquids
containing particles
Recommended installation is in a vertical/
inclined pipe to minimize the wear and de-
posits in the sensor.
Avoid vibrations!
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