216
SAW sensor – Parameter
Type 8098 FLOWave L
15.12
Setting the parameters of the differentiation factor
(optional feature)
15.12.1
What is the differentiation factor?
The differentiation factor (DF) is a dimensionless measurement value which can be used to identify the liquid
flowing through the pipe.
Before SW version 05.00.00, differentiation factor was named density factor. Given the fact that the option
density appeared, the name was changed in order to avoid unnecessary confusion.
The DF is a non-calibrated acoustic measurement based on the measurement of the speed of sound in the
liquid and can be compensated by temperature. The DF gives an idea of the density of most of aqueous
liquids. By default, the temperature compensation is related to water.
→
To set a temperature compensation, refer to chapter 15.12.10
.
Air bubbles in the liquid have an unwanted effect on the DF accuracy.
The device measures DFs in the range of 0.8...1.3.
•
If a liquid flowing through the pipe has a higher density than water, the measured DF is higher than 1.
•
If a liquid flowing through the pipe has a lower density than water, the measured DF is lower than 1.
Examples of DF ranges:
•
The DF of water is in the range of 0.95...1.05.
•
The DF of tomato ketchup is in the range of 1.1...1.3.
15.12.2
Giving a user defined name to the measured differentiation
factor
The name is used to identify the process value in the user defined views and in all the menus where the
process value is displayed (for example in the
Outputs
menu).
By default, the name associated to the measured DF is
DF
.
To add a user defined name to the default name, do the following:
→
Go to the
CONFIGURATION
view.
→
SAW sensor
→
Confirm to access the
Parameter
view.
→
Add. meas. values
→
DF
→
Value name
.
→
Enter the name by selecting and confirming each character. The name can have up to 19
characters.
→
OK
→
Save the name.
The name is changed.
English
Summary of Contents for Flowave 8098
Page 4: ...General contents 4 Type 8098 FLOWave L English...
Page 12: ...12 Type 8098 FLOWave L English...
Page 36: ...36 Technical data Type 8098 FLOWave L English...
Page 72: ...72 Type 8098 FLOWave L English...
Page 78: ...78 Commissioning Type 8098 FLOWave L English...
Page 96: ...96 Type 8098 FLOWave L English...
Page 144: ...144 Type 8098 FLOWave L English...
Page 248: ...248 Type 8098 FLOWave L English...
Page 286: ...286 SAW sensor Maintenance Type 8098 FLOWave L English...
Page 304: ...304 Type 8098 FLOWave L English...
Page 316: ...316 Type 8098 FLOWave L English...
Page 350: ...350 Spare parts and accessories Type 8098 FLOWave L English...
Page 352: ...352 Appendix Type 8098 FLOWave L English...
Page 353: ......
Page 354: ...www burkert com...