4.4.8
Installation in the vicinity of pumps
For flowmeter primaries which are to be installed in the vicinity of
pumps or other vibration generating equipment, the utilization of
mechanical snubbers is advantageous.
Fig. 16
4.4.9
Installation of the high temperature design
The high temperature design allows for complete thermal insulation of
the sensor. The pipeline and sensor must be insulated after installing
the unit according to the following illustration.
Fig. 17
1
Insulation
4.4.10 Devices with extended diagnostic functions
For devices with extended diagnostic functions different installation
conditions may be valid.
For further information read and observe chapter General remarks.
4.4.11 Minimum distance
In order to prevent the devices from interfering with each other, a
minimum distance of 0.7 m (2.3 ft) must be maintained between the
devices.
xx m (xx ft)
Fig. 18
Change from one to two columns
CI/FEX300/FEX500-X1
G00561
1
G00654
G01349
FEX300, FEX500
4.4.12 Installation in pipelines with larger nominal
diameters
Determine the resulting pressure loss when using reduction
pieces (1):
1. Calculate the diameter ratio d/D.
2. Determine the flow velocity based on the flow range
nomograph (Fig. 20).
3. Read the pressure drop on the Y-axis in Fig. 20.
Fig. 19
1
Flange transition piece
d
Inside diameter of the
flowmeter
V
flow velocity [m/s]
Nomograph for pressure drop calculations
For flange transition piece with /2 = 8°
Fig. 20
Mounting
p pressure loss [mbar]
D
Inside diameter of the
pipeline
EN - 23