Flexim FLUXUS G800, Руководство пользователя

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FLUXUS G80x 11 Basic Measurement
78 UMFLUXUS_G8V4-6-1EN, 2018-10-10
When the pipe material has been selected, the corresponding sound speed is set automatically. If
Other Material
is
selected, the sound speed has to be entered.
For the sound speed of some materials see annex C.1.
11.1.4 Pipe Lining
It can be specified which materials will be shown in the scroll list (see section 15.5).
If
Other Material
is selected, the sound speed has to be entered.
For the sound speed of some materials see annex C.1.
11.1.5 Pipe Roughness
The flow profile of the fluid is influenced by the roughness of the inner pipe wall. The roughness is used for the calculation
of the profile correction factor. As, in most cases, the pipe roughness cannot be determined exactly, it has to be estimated.
For the roughness of some materials see annex C.2.
11.2 Input of the Fluid Parameters
It is possible to specify which fluids will be displayed in the scroll list (see section 15.5).
For the programmed parameters of common fluids see section C.3.
If a fluid is selected from the scroll list, the menu item for the input of the fluid temperature will be displayed directly (see
section 11.2.5).
Enter the sound speed of the pipe material. Press ENTER.
Note! Enter the sound speed of the material (i.e. longitudinal or transversal speed) which is nearer to 2500
m/s.
If the pipe has an inner lining, select
yes
. Press ENTER.
If
no
is selected, the next parameter will be displayed (see section 11.1.5).
Select the lining material.
If the material is not in the scroll list, select
Other Material
. Press ENTER.
Enter the sound speed of the lining material. Press ENTER.
Enter the thickness of the liner. Press ENTER.
Note! The inner pipe diameter (= outer pipe diameter - 2x pipe wall thickness - 2x liner thickness) is calcu-
lated internally. If the value is not within the inner pipe diameter range of the connected transducers,
an error message will be displayed.
It is possible to change the lower limit of the inner pipe diameter for a given transducer type (see sec-
tion 13.9).
Enter the roughness of the selected pipe or liner material.
Change the value according to the condition of the inner pipe wall.
Press ENTER.
Select the fluid from the scroll list.
If the fluid is not in the scroll list, select
Other Medium . Press ENTER.
c-Material
3230.0 m/s
Lining
no
>YES<
Lining ↕
Bitumen
c-Material
3200.0 m/s
Liner Thickness
3.0 mm
Roughness
0.4 mm
Medium ↕
Std. natural gas