9 Measurement
FLUXUS G831ST-HT
9.1 Parameter input
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UMFLUXUS_G831ST-HTV1-0EN, 2021-06-01
Sound speed of the pipe material
• Enter the sound speed of the pipe material.
• Press ENTER.
• Select
Transverse wave
or
Longitudinal wave
.
• Press ENTER.
These displays will only be indicated if
Other material
is selected.
For the sound speed of some materials see annex C.
Roughness of the pipe material
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.
In most cases, the pipe roughness cannot be exactly determined and must therefore be estimated.
• Press ENTER if the pipe has a lining. The roughness of the lining is included into the calculation.
• Enter the roughness of the pipe material in case the pipe has no lining. Press ENTER.
This display will only be indicated if
Other material
is selected.
For the roughness of some materials see annex C.
Wall thickness
• Enter the pipe wall thickness.
• Press ENTER.
Lining
• Select
Yes
if the pipe has a lining. Select
No
if the pipe has no lining.
• Press ENTER.
Lining material
• Select the lining material.
• Press ENTER.
• If the lining material is not included in the scroll list, select the list item
Other material
.
• Press ENTER.
This display will only be indicated if
Yes
is selected in the menu item
Lining
.
Parameters\Pipe material\Other material\c material
Notice!
There are 2 sound speeds for pipe materials: the longitudinal and the transversal one. Enter the sound speed which
is nearer to 2500 m/s.
Parameters\Pipe material\Other material\Roughness
Parameters\Pipe wall thickness
Parameters\Lining
Parameters\Lining material
