GE General Electric Oxygen Equipment PT878 Benutzerhandbuch
Chapter 3. Programming Site Data
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual
65
3.11.1 Entering Correction Factors
The final option in the Program Menu, Correction Factors, allows you to
enter and modify three correction factors: Reynolds Correction, Kinematic
Viscosity and Calibration Factor. To enter the Correction Factors option,
scroll to the Correction Factors entry on the Program Menu and press
enter and modify three correction factors: Reynolds Correction, Kinematic
Viscosity and Calibration Factor. To enter the Correction Factors option,
scroll to the Correction Factors entry on the Program Menu and press
[ENTER]
. The screen appears similar to Figure 35 below. To step through
each parameter, press the [T] key. Refer to Figure 152 on page 236 of
Appendix A, Menu Maps.
Appendix A, Menu Maps.
Figure 35: Reynolds Correction Window
3.11.2 Entering Reynolds Correction
The default for Reynolds Correction is “On.” This correction factor should
be on in most applications, including all those that utilize clamp-on
transducers. It makes a small adjustment to the flow rate reported by the
PT878, based on the Kinematic Viscosity. Reynolds Correction is necessary,
as the velocity of the fluid measured along a diametrical path must be
related to the total area average velocity over the entire pipe cross-section.
be on in most applications, including all those that utilize clamp-on
transducers. It makes a small adjustment to the flow rate reported by the
PT878, based on the Kinematic Viscosity. Reynolds Correction is necessary,
as the velocity of the fluid measured along a diametrical path must be
related to the total area average velocity over the entire pipe cross-section.
Reynolds Correctio
Inputs
Correction Factors
Cancel
OK
Calibration Factor
Re Correction
On
Off
K/V (v)
m
3
/s
Data Source
K/V Factor
Single
Table
Edit Table
10