Dynasonics TFXM Series Ultrasonic Multi-Channel Flow Meter - Manual (Page 46)

Rev. 8/02
-3. 8- TFXM
PIPE R -- Pipe Material Relative Roughness
UNITLESS VALUE
The TFXM 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.
Linear RMS measurement of the pipe
PIPE R = internal wall surface
Internal Diameter of the pipe
If a pipe material was chosen from the PIPE MAT list, a
nominal value relative roughness in that material will be
automatically loaded. If the actual roughness 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 R may need to be
entered.
LINER T -- Pipe Liner Thickness Entry
ENGLSH (Inches)
METRIC (Millimeters)
Enter the pipe liner thickness. Enter this value in inches if
ENGLSH was selected as UNITS; in millimeters if METRIC
was selected.
[If a LINER Thickness was selected]
LINER MAT - Liner Material
TAR EPOXY
RUBBER
MORTAR
POLYPROPYLENE
POLYSTYROL
POLYSTYRENE
POLYESTER
POLYETHYLENE
EBONITE
TEFLON
PART 3 - KEYPAD CONFIGURATION
Liner Type
Liner Thickness
Pipe Roughness