Enable-IT 868 Manuel d'utilisateur télécharger pdf (Page 48)

December 2003

3-22 Programming Site Data

Entering Parameters for Wetted Transducers

If you are using wetted transducers, you will get the following

prompts:

• Pipe OD (pipe outside diameter)

• Pipe Wall

• Path Length (P)

• Axial Dimension (L)

• Tracking Windows

• Fluid Type

• Reynolds Correction Factor (and Kinematic Viscosity)

• Calibration Factor

2W. Entering the Outside Diameter of the Pipe

The first prompt for wetted transducers is pipe outside diameter

(OD). If you do not know the outside diameter of your pipe, use

either the on-line help or consult Sound Speeds and Pipe Size

Data that contains some standard pipe sizes with their

corresponding outside diameters. For greater accuracy, measure

the pipe OD at the location where the transducers will be

mounted. Always enter the exact OD dimension and not the

nominal value. The PT868 can also calculate the outside diameter

from the pipe circumference.

To enter the outside diameter or circumference:

a. Press the appropriate feature key to select the units. You

can enter the outside diameter in inches (F1) or feet (F2),

or the circumference in inches (F3) or feet (F4).

b. Use the numeric keys to enter the outside diameter or

circumference.

c. Press [ENT].

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Enable-IT 868 Manuel d'utilisateur Page 48