ABB HART FEH300, Инструкция по вводу в эксплуатацию

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Installation
16 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
3.4.7 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. 15
3.4.8 Installing 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. 16
1 Insulation
3.4.9 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. 18).
3. Read the pressure drop on the Y-axis in Fig. 18.
Fig. 17
1
d
V
Δ
p
D
= Flange transition piece
= Inside diameter of the flowmeter
= flow velocity [m/s]
= pressure loss [mbar]
= Inside diameter of the pipeline
Nomograph for pressure drop calculations
For flange transition piece with
α
/2 = 8°
Fig. 18
Change from one to two columns