GE AquaTrans AT868, Краткое руководство

Страница: 33 / 67

Programming Site Data 2-7
September 2004
Pipe Outside Diameter
The programming sequence should be rejoined here for all
transducers.
1.
Press [
X
] to move the cursor to the outside diameter units. Press
[
S
]
and
[
T
]
to select the desired units and press
[ENTER]
.
2. Measure either the pipe outside diameter
(OD)
or circumference at
the transducer installation site. Enter the measured dimension by
using the arrow keys. Press [
W
]
and [
X
] to move the cursor to the
desired location and press
[
S
]
and
[
T
]
to increase or decrease
the number. Then press [ENTER] .
3.
Enter the know thickness of the pipe wall by using the arrow keys.
Press [
W
]
and [
X
] to move the cursor to the desired location and
press
[
S
]
and
[
T
]
to increase or decrease the number. Then
press [ENTER] . If the pipe wall thickness cannot be measured
directly, look up the value in a table of standard pipe size data.
4.
Do one of the following:
•
wetted transducers - proceed to Path and Axial Length below.
•
clamp-on transducers - proceed to Lining on the next page.
Path and Axial Length
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 are included in the
documentation supplied with the meter. For on-site transducer
installations, refer to Appendix B,
Measuring P and L
Dimensions , for instructions.
1. Enter the path length ( P ) of the ultrasonic signal.
2.
Select the desired units and press
[ENTER]
.
3.
Enter the axial length (
L
) of the ultrasonic signal and press
[ENTER]
.
4. Select the desired units and press [ENTER] .
5.
Proceed to Setting Up a Tracking Window on the next page.