Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 45)

Rev. 5/09
-3.7- TFXP
16. St Steel 302/303 (SS 303)
17. St Steel 304/316 (SS 316)
18. St Steel 410 (SS 410)
19. St Steel 430 (SS 430)
20. PFR (PFR)
21. Titanium (TITAMN)
22. Other (OTHER)
This list is provided as an example. Additional pipe materials may
have been added. Select the appropriate pipe material from the list
or select Other if the material is not listed.
PIPE SS -- Speed of Sound in the Pipe Material (Value)
1. ENGLSH (Feet per Second)
2. METRIC (Meters per Second)
Allows adjustments to be made to the speed of sound in the pipe
wall. If the Units value was set to Englsh, the entry is in FPS (feet
per second). Metric entries are made in MPS (meters per second).
If a pipe material was chosen from the Pipe Mat list, a nominal
value for speed of sound in that material will be automatically
loaded. If the actual sound speed rate is known for the application
piping system and that value varies from the automatically loaded
value, the value can be revised.
If Other was chosen as Pipe Mat, a Pipe SS will need to be
entered.
PIPE R -- Pipe Material Relative Roughness (Value)
Unitless
The TFX provides Reynolds number compensation in its flow
measurement calculation. The ratio of average surface imperfection
as it relates to the pipe internal diameter is used in this
compensation algorithm.
Pipe
Sound Speed
Pipe
Roughness
PIPE R
Linear RMS measurement, pipe internal wall surface
Internal Diameter of the pipe
=
PART 3 - KEYPAD CONFIGURATION