Panametrics DigitalFlow XGF868i, Startup Manual

Page: 45 / 90

DigitalFlow™ XGF868i Startup Guide 35
Chapter 2. Initial Setup
2.7.3 Path and Axial Lengths
7. To enter the Path Length:
a.
Use the [

] arrow key to highlight the path length unit type at the right of the screen.Then use the [

] and [

]
arrow keys to scroll to the desired unit type.
b. Use the [

] arrow key to return to the numeric entry on the left, and enter the path length of the ultrasonic
signal. Press [Enter].
Note: If a spoolpiece was ordered with the meter, the transducer signal path length (P) and the transducer signal
axial length (L) are engraved on the flowcell and/or are included in the documentation supplied with the
meter. For on-site transducer installations, refer to Appendix C, Measuring P and L Dimensions .
8. In the same manner, enter the appropriate Axial Length L unit type and axial length of the ultrasonic signal, and
press
[Enter].
9. Scroll to the desired Fluid Type and press [Enter]. Then do one of the following:
• If OTHER was selected - proceed to Step 10.
• If AIR was selected - proceed to Step 11.
10. Use the arrow keys to enter the Fluid Soundspeed (in feet per second) in the gas to be measured and press
[Enter].
11. Scroll to the appropriate choice to indicate whether you want Reynolds Correction , and press [Enter].
• If Off is selected, go to Step 12.
• If On is selected, the program asks for the Kinematic Viscosity. Use the arrow keys to enter the desired value,
and press [Enter].
12. Use the arrow keys to enter a value for the flow Calibration Factor and press
[Enter].
The default value is 1.00, but
values between 0.50 and 2.0 may be entered.
2.7.3.1 Procedure Options
After completing the above steps, the XGF868i returns to the Channel PROGRAM window. Press [Escape] twice to return to
the meter display. Then proceed to Chapter 3, Operation , for instructions on taking measurements, or refer to the
Programming Manual for instructions on programming the XGF868i advanced features.