GE UTX878 Ultrasonic, User Manual

Page: 39 / 103

Programming Site Data 2-15
March 2004
Entering Path Data
In the Path submenu, you can specify and check the path taken by the
transducer signal. Remember to record all programmed data in
Appendix C,
Data Records.
Note:
If you are in the PROG menu, proceed directly to Step 4. If
you scroll to a different option, press [ENT] twice to select
that option (once to enter and again to confirm the selection).
To access the Path submenu:
1. Press [ESC]. The UTX878 enters the User Program.
2. Press the [
X
] key until PROG is bracketed and press [ENT].
3. Use the [
S
] and [
T
] keys to scroll to the desired Channel and
press [ENT].
4. Scroll to the Path submenu and press [ENT].
5. The meter first asks for the number of Traverses , or times the
signal crosses the pipe. Press [ENT], scroll to the number of
traverses for your installation, and press [ENT] to confirm the
entry.
Note: The great majority of UTX applications call for two traverses.
Figure 2-5 below illustrates signal paths for a typical two-
traverse installation.
Figure 2-5: Signal Paths for a Two-Traverse Installation
6. The remaining prompt displays the Transducer Spacing , as
calculated from the information entered. Use this number to set
the spacing of the transducers. (The minimum spacing is 0.9 in.)
If necessary, you can overwrite the spacing to match the actual
physical spacing of the transducers. Press [ENT] to open the
Spacing window, and use the arrow keys to change the value.
Then press [ENT] to confirm the value.
IMPORTANT:
It is recommended that you do not use a spacing
other than the one calculated by the UTX878.
However, if you do use a different spacing, do not
change the spacing by more than ±10% from that
calculated by the UTX878
.
Press [ESC] until you return to the PROG menu, or continue pressing
[ESC] until the display screen reappears.