UMG70XV3-4EN 12.01.2009 81
10 Basic Measurement
10.1.2 Pipe Wall Thickness
10.1.3 Pipe Material
The pipe material has to be selected to determine the sound velocity. The sound velocity
for the materials in the scroll list are stored in the flowmeter.
The materials to be displayed in the scroll list can be selected (see chapter 14.5).
When the pipe material is selected, the corresponding sound velocity is set automatical-
ly. If OTHER MATERIAL is selected, the sound velocity has to be entered.
For the sound velocity of some materials see annex C, Table C.1.
10.1.4 Pipe Lining
The materials to be displayed in the scroll list can be selected (see chapter 14.5).
Enter the pipe wall thickness. The range depends on
the connected transducers. Press ENTER.
Note! The inner pipe diameter (= outer pipe diameter - 2x pipe wall thick-
ness) will be calculated 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 section 12.8).
Select the pipe material from the scroll list.
If the material is not in the scroll list, select OTHER MA-
TERIAL. Press ENTER.
Enter the sound velocity of the pipe material. Press EN-
TER.
Note! Enter the sound velocity of the material (i.e. longitudinal or transver-
sal velocity) which is nearer to 2500 m/s.
If the pipe has an inner lining, select YES. Press EN-
TER.
If NO is selected, the next parameter will be displayed
(see section 10.1.5).
Select the lining material.
If the material is not in the scroll list, select OTHER MA-
TERIAL. Press ENTER.
Pipe Material
Carbon Steel
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