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9 Installation in piping
If the measurement device cannot be mounted vertically, the
line in which it is mounted must always be filled. An optimal
measurement is ensured if no gas bubbles can form in the
measurement channel of the product.
Valve
GEMÜ 3040
Process
Valve
GEMÜ
3040
Process
Fig.6: Possible installation variants
For applications in "Clean Design", i.e. when it must be en-
sured that the lines are completely drained, we recommend
vertical installation of the measurement device. If the installa-
tion position is horizontal, remnants of liquid could remain in
the device due to the geometry of the channel in the measure-
ment channel interior.
Vibrations or mechanical stress can affect the accuracy of the
measurement device. If it is therefore necessary to addition-
ally fix the product in place due to vibrations or mechanical
movements, two fastening clamps can be fitted on the inlet or
outlet of the measurement device.
Fig.7: Fixing the product in place
CAUTION
▶ The product must always be mounted so that it is mech-
anically stress-free. Extreme tension in the pipe system
can cause damage to the device.
▶ In this respect, the axial channel offset of 5 mm (only
DN10–DN25) must be observed during assembly (see the
chapter "Technical data").
Application with hot liquids:
CAUTION
▶ For applications in which the product is subjected to tem-
peratures higher than 60 °C and is mounted horizontally,
we recommend installing the measurement device with
the electronics housing positioned downwards. This
means that the heat can be emitted upwards and the load
on the device's electronics is reduced. It must generally
be ensured that no external heat sources are additionally
acting on the measurement device.
Fig.8: Using the product with hot media
WARNING
Installation in metallic piping in combination with high me-
dia temperatures.
▶ You must remember that the metal piping and the plastic
body of the measurement device have different expan-
sion behaviours. The forces acting on the measurement
device because of this can cause the plastic body of the
product to become distorted and for the process connec-
tion to tear off.
▶ To ensure the mechanically stress-free installation of the
product, appropriate measures must be taken on-site to
ensure that no forces can act on the plastic body, for ex-
ample, a flexible metal hose or strain curve.
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