GE UTX878 Ultrasonic, User Manual

Page: 37 / 103

Programming Site Data 2-13
March 2004
Entering Fluid Data
(cont.)
8. The menu now varies, depending on your selections in steps 6
and 7.
•
If you have selected Preprogrammed fluids, the UTX878 supplies
a list of preprogrammed fluids. As shown in Table 2-3 on the next
page, the list varies, depending on whether you have selected
normal or tracking window fluid types. In either case, scroll to the
desired fluid and press [ENT].
•
If you selected Other, the UTX878 asks for the fluid soundspeed
(for Normal fluids) or minimum and maximum soundspeed (for
Tracking Window fluids). In either case, scroll to the soundspeed
option and press [ENT]. Use the arrow keys to enter the
appropriate soundspeed, and press [ENT].
9. Press the [ESC] key until you return to the Fluid Type window
discussed in Step 5.
Entering Reynolds
Correction Data
Reynolds Correction is a correction factor based on the Kinematic
Viscosity and flow rate of the fluid. It 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. This
factor should be ON in most applications, including all those that use
clamp-on transducers. To access Reynolds Correction data:
1. From the Fluid Type window (described in step 5 on the previous
page), scroll to
Reynolds and press [ENT].
2. The screen shows three options: Off, Single and Table . Scroll to
the desired option, and press [ENT].
Table 2-3: Preprogrammed Fluid Types
Tracking Windows Off Tracking Windows On
Water (0-260°C) Water (0-100°C)
Sea Water Water (0-260°C)
Oil (22°C) Oil
Crude Oil
Lube Oil (X200)
Methanol (20°C)
Ethanol
LN2 (-199°C)
Freon (R-12)
Diesel
Gasoline