Chapter 4.
56
TransPort™ PT878GC User’s Manual
4.
The program now asks if you wish to Limit the Measurement Delta. (The default is unchecked or off.)
a.
Press
[ENTER]
to enter the text box.
b.
Use the numeric keys to enter the recommended value in µsec.
c.
Press
[ENTER]
to confirm the entry.
Pressing the [
] key highlights the Advanced prompt. To enter advanced parameters for the Skan/Measure modes,
press
[ENTER]
. The screen now appears similar to Figure 54 below. In each case, to enter a value:
a.
Press
[ENTER]
to enter the text box.
b.
Use the numeric keys to enter the value.
c.
Press
[ENTER]
to confirm the entry.
Figure 54: The Advanced Skan/Measure Window
5.
The first prompt, the number of shifts, corresponds to the actual number of transmits per cycle (the number of
signals added together in one direction to produce an averaged signal for one interrogation of the fluid). It need
only be changed if the environment is very noisy or the acoustic signal is weak. The default value is 3 and values
from 0 to 10 are acceptable.
6.
The next prompt enables you to reset the size of the transmit window. Normally, the PT878GC calculates the size
of both transmit and receive windows based on pipe size and fluid sound speed. However, for special diagnostic
purposes, it may sometimes be necessary to reset the window size. The default value is 1 and values from 0 to
1,000 are acceptable.
7.
The next prompt enables you to reset the size of the receive window for diagnostic purposes. The default value is
10 and values from 0 to 300 are acceptable.
8.
The Meas Window prompt allows you to customize the width of the measurement window. While this window is
normally 10 cycles wide, the option allows you to customize the width from 1 to 60.
Pressing the [
] key returns the meter to the # Shifts entry.
•
To confirm the entries and return to Operate mode, press
[F3]
(OK).
•
To leave the window without confirming the entries and return to Operate mode, press
[F2]
(Cancel) or the
[ESC]
key.
Skan/Meas
Advanced Signal Setup
Cancel
OK
Meas Window
R Window
cycles
# of Shifts
cycles
T Window
3
1
10
cycles
cycles
10
Noise Window Width
Noise Window Offset
3
0
Содержание PT878GC
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Страница 197: ...TransPort PT878GC User s Manual 187 Appendix A Appendix A A 1 Menu Maps Figure 162 The Main Menu...
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Страница 199: ...Appendix A TransPort PT878GC User s Manual 189 Figure 163 The Site Menu...
Страница 200: ...Appendix A TransPort PT878GC User s Manual 190 Figure 164 The Program Menu Transducer Lining Fluid and Path Options...
Страница 201: ...Appendix A TransPort PT878GC User s Manual 191 Figure 165 The Program Menu Pipe Option...
Страница 204: ...Appendix A TransPort PT878GC User s Manual 194 Figure 168 The Meter Menu...
Страница 205: ...Appendix A TransPort PT878GC User s Manual 195 Figure 1 Logging Mneu...
Страница 212: ...Appendix D 202 TransPort PT878GC User s Manual...
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