User`s manual

December 2003
A-10 Entering Special Transducer Pipe Parameters
Entering Parameters for Clamp-On Transducers
(cont.)
13C. Entering the Reynolds Correction Factor
The Reynolds Correction Factor is a number based on the
viscosity and flow rate of the fluid. Generally, it should only be
enabled when using transducers mounted in a diametrical path
(such as clamp-on or tilted diameter).
If you enable the Reynolds Correction Factor, you will also need
to enter the Kinematic Viscosity of the fluid (units are ft
2
/sec or
m
2
/sec depending on the units selected). Refer to Sound Speeds
and Pipe Size Data for the Kinematic Viscosity of your fluid.
• Press [F1] to disable the Reynolds Factor .
• Press [F2] to enable it. Then use the numeric keys to enter the
Kinematic Viscosity, and press [ENT].
14C. Entering the Calibration Factor
The Calibration Factor is used as a reference for the flowmeter
electronics to ensure accurate readings. Generally, if you enable
the Reynolds Correction Factor, the correction factor should be
set to 1.00. Otherwise the typical factor is between .50 and 2.00.
Use the numeric keys to enter a value and press [ENT].
15C. Entering the Number of Traverses
The next prompt asks you to enter the number of times the
ultrasonic signal will traverse the pipe (accomplished by
configuring the transducers in such a way as to bounce the signal
off the inside pipe walls, as discussed in the Transducer
Installation Guide). The number of traverses is determined by
such factors as pipe sizes, pipe wall absorption properties, and
accuracy desired.
Use the [←] [→] keys to view all the options and press the
appropriate feature key to respond.