Transcript HiPAP Calibration

HiPAP Calibration
Note if in doubt click the “Help”
button
Velocity Cast
•
It is important to have the correct Sound
Velocity for the correct use of the HiPAP
and HPR.
Do a velocity cast, process the cast into
a comma separated file, with Depth, and
Speed of Sound.
The APOS Screen
The Sound
Velocity Icon
Click on the Sound Velocity Icon
Entering the Velocity Profile
• A picture similar to the slide below will
appear.
• Select “File”, and
“Open, or click the
“Icon” to open a file.
The file open
Icon
• A dialog box similar to
this will open. Either
steer to the place
where your “new”
velocity cast is
situated, or copy your
file into the
APOS\Data folder
and select it
Added date
information
• Your velocity cast
should open in a text
format. You can edit
the file like the
example, giving a
date or location to
make the file
meaningful.
• Select Convert from
the file menu.
Convert
• You will be asked to
convert File to Data
• You can now give a
Heading text to your
Profile, and select the
fist line to convert.
Use the depth neares
to just below the
transducer. Also make
sure you know which
is the depth and
velocity column in
your file.
Header from
previous
dialog
Set the Profile to Active
Or
This Icon
And Finally
• Close down all the open boxes.
• Save everything when prompted.
• When finished click the Sound Velocity
icon again.
• Make sure you have saved the correct
Active Velocity.
• Close the Velocity Profile Window.
Add the Transponder as usual
Enter the Correct
serial number
Don’t forget the
release box
Select MPT
Go to Configure Transponder
Either from the
menu on the top,
Configure
Transponder, or right
click the icon and
select Transponder
Tab
to
the
second
Page
The Release button
is down here. You
only get asked once
if you are sure you
want to Release the
Transponder
It is quite useful
to configure the
Green Dot
screen as
Trend. Then
setup the Trend
menu to monitor
Depth from the
Transponder
The second
page is marked
as Transponder
Functions
• Activate the
Calibration
transponder, after it
has been deployed
and is on the bottom
Calibration
Transponder
• Click on Utility, then
on Transducer
Alignment
Transducer
Alignment
Right click the white
section of the box
Select New
Alignment of APOS
Transducer
Select your Transponder
Drop down
Menu
The transducer
being calibrated
• A dialog ox like this
will appear. Select
your calibration
transponder from the
drop down menu.
• Also if you have more
than one HiPAP,
select the one you are
calibrating.
Note. You must
have GPS,
preferably DGPS
into the system
and working.
The
Transponder
The Transducer
Select the transponder, and right
click on it
Right Click on
Properties
• Decide if you want to
start and stop the
calibration manually
or automatically after
a chosen number of
position pairs .
• Normally I would
select “After #
position pairs” choose
100
The Pattern
• It doesn’t matter on the chosen pattern
• The preferred method is 4 Cardinal points
and a spin stopping at each quadrant, over
the top of the transponder.
• Note Stay in the beam footprint of the
transponder
• Ie a 324 transponder, is a 30Khz, 2000
meter depth rated, and a +/- 45 degree
beam pattern.
4 Cardinal Points and a Spin
• Press the “Calculate”
button.
• After a short period of
time an answer will
appear.
Number of points
logged
Ensure
this box
is ticked
The Answer
Number of points used
in the caculation
The new values for
the transducer
The update button
must be “Live”
• If the “Update” button
is not active, you will
need to close all the
dialog boxes and log
on as “Service”
Logging on as Service
Select “User”
Logon
Select Logon
From the drop down
menu select Service
The Password
• The Password is
ALWAYS 1997
Select “Show
Results”
Update is now live
You Will Be Warned
Almost Done
• Select Yes
• The new Pitch Roll
and Gear (Rotation)
will be down loaded
into the tranceiver
Save to File, a jpg is saved of
the alignment
• Close down the Dialog Boxes
When you get to this one
Right click on the transponder.
Select “Save Measurements As”
Save the file, the default is the
Transponder channel, ie B42
The transducer being calibrated
ie 11,21, 31 etc if you have more
than one,
And the time the file was saved.
You can name the file anything
you like.
Save Measurements as
Finished
• The system is ready to go to work.
• Easy