DigitalFlow™ XMT868i Programming Manual
33
Appendix C. Programming the XMT868i Using PanaView™
C.5.3 Entering Pipe Parameters
Enter the transducer and pipe parameters using the Pipe submenu. While following the programming instructions,
refer to Figure 54 on page 72
1.
From the Channel menu, highlight and double-click on the
Pipe Parameters
option in the center pane.
2. The first prompt asks for the
Transducer Number.
•
For a standard transducer,
double-click on the
Standard
option in the center pane. Then
enter the number
engraved on the transducer head in the right pane, and click on [Next Item].
•
If there is no number engraved on the transducer head, double-click on the
Special
option, enter an
assigned number (from 91 to 99), and click on
[Next Item].
IMPORTANT:
Special transducers, which have no engraved number on the head, are rarely used. Examine the
transducer head carefully for a number.
The menu now varies, depending on your selection in step 2.
•
If you entered the number for a standard clamp-on transducer, proceed to the
Pipe Material
prompt in step 4.
•
If you entered the number for a standard wetted transducer, proceed to the
Pipe OD
prompt in step 5.
•
If you entered the number for a special transducer, proceed to step 3 below.
C.5.3.1 Special Transducers
3. For special transducers:
a.
The program first asks for the Wedge Type. Double-click on the appropriate transducer type (Rayleigh
clamp-on, shear clamp-on, or wetted).
Note:
Panametrics will supply the information required for steps b through f with the transducers.
b.
Double-click on the appropriate Frequency (from 500 kHz to 5 MHz).The frequency is required to transmit an
excitation voltage at the transducer’s natural frequency.
c.
Enter the Time Delay (Tw) value supplied by Panametrics and click on [Next Item].
Tw is the time required for the transducer signal to travel through the transducer and its cable. This time delay must
be subtracted from the transit times of the upstream and downstream transducers to ensure an accurate
measurement.
If you have selected a special wetted transducer, the program now goes to step 5. But if you have selected a
clamp-on transducer, three more prompts appear.
d.
Enter the transducer
Wedge Angle
(the angle of the ultrasonic transmission, in degrees) and click on [Next
Item].
e.
Enter the
Wedge Temperature
and click on [Next Item].
f.
Enter the
Wedge Soundspeed
and click on [Next Item].
Summary of Contents for DigitalFlow XMT868i
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