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April 2009
Setting Impulse Response (cont.)
2. The second prompt asks for the percent of gain.
a. Press
[ENTER]
b. Use the numeric keys to enter the desired percentage.
c. Press
[ENTER]
You have completed entering data for the Impulse Response
option.
•
[F1]
Press
to start transmitting in the chosen direction.
•
[F2]
Press
to stop transmitting.
•
[F3]
Press
to leave the option and return to Operate Mode.
Taking Wave Samples for Diagnosis
The Wave Snapshot option allows you to capture receive signals
to a file that you can send to a PC for diagnostic purposes. To use
this option, scroll down to the Wave Snapshot entry in the Service
Menu and press
of upstream and downstream raw signals to a file named
Wave01.met. (If you repeat the captures, the successive files will
be named Wave02.met, Wave03.met, etc.) You can then transfer
the files over the IR port to a PC for analysis by a service
engineer.
Note: Refer to page 6-16 for information on transferring a file
to a PC.
Applying a Stored Signal for Diagnosis
The Simulate option places the PT878GC in a mode in which it
uses a stored signal (instead of the live signal from the
transducers) to make flow calculations for diagnostic purposes.
On the PC, you must rename a Wavexx.met file as Wave.met and
send it back to the PT878GC over the IR link. Then, on the
PT878GC, scroll down to the Simulate entry in the Service Menu
[ENTER]
and press
signal.
Note: Refer to page 6-17 for information on transferring a file
from a PC to the PT878GC.
9-40
to open the text box.
to confirm your entry.
[ENTER]
. The PT878GC then captures three pairs
. The PT878GC then applies the simulated
Servicing the PT878GC
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