9 Measurement
9.1 Parameter input
FLUXUS G831ST-HT
2021-06-01, UMFLUXUS_G831ST-HTV1-0EN
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Sound speed of the lining material
• Enter the sound speed of the lining material.
• Press ENTER.
• Select
Transverse wave
or
Longitudinal wave
.
• Press ENTER.
These displays will only be indicated if
Other material
is selected.
Roughness of the lining 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.
• Enter the roughness of the lining material.
• Press ENTER.
This display will only be indicated if
Other material
is selected.
Lining thickness
• Enter the thickness of the lining.
• Press ENTER.
This display will only be indicated if
Yes
is selected in the menu item
Lining
.
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.
In most cases, the pipe roughness cannot be exactly determined and must therefore be estimated.
• If
Automatic
is selected, the roughness values stored in the transmitter are used.
• If
Customized
is selected, a roughness value has to be entered.
• Press ENTER.
This display will not be indicated if
Other material
is selected in the menu item
Pipe material
or
Lining
material
.
Parameters\Lining material\Other material\c material
Notice!
For pipe materials there are 2 sound speeds, the longitudinal and the transversal one. Enter the sound speed which
is nearer to 2500 m/s.
Parameters\Lining material\Other material\Roughness
Parameters\Lining thickness
Parameters\Roughness
