Specifications

DigibarPro Version 1.07
Appendix1 10/27/08
4-25
An interesting observation
: In Hypack applications, if velocity data is collected in feet/sec., the data will
automatically be converted to meters/sec. by Digibar Pro Log once the operator tells the program to save
the file as a *.VEL file (Hypack compatible file). Depths continue to be stored in feet, but all velocities
are stored in meters/sec. You can monitor the results of this conversion in the Coastal/Datum directory by
selecting Editing, Sound Velocity in Hypack.
Digibar File Transfer Protocol
Downloading files in the DigibarPro format (each record includes date, time, velocity and depth, ending
with the ".csv" extension) is accomplished in the much the same manner as illustrated in steps 1 through
11 above. In Step 11
, where the operator is instructed to choose "Hypack Files" the operator should
choose the standard spreadsheet compatible (Cast Files (*.CSV)) file type.
1. Collect a velocity profile (either one-way surface to maximum depth, or round-trip) in the
same measurement units as those used for the survey (feet or meters).
2. Note the cast number and edit the individual samples using the Review parameter of the
DigibarPro. Delete any obvious bad velocities from the cast. Please note that often the last
velocity taken will be at or near the bottom and consequently may be corrupted by bottom
sediment in the sampling chamber.
3. Select the Comm menu on the DigibarPro control unit and confirm the Baud Rate is set to
19.2kbs.
4. Connect the DigibarPro serial cable to an active communications port on the data acquisition
PC. Launch the program DigibarPro Log 2.1. This program is supplied free of charge
with each DigibarPro unit and is available for downloading from our website.
5. On the data acquisition PC, Click on the Setup tab in DB Pro Log, and confirm that:
a. The appropriate Com port on your PC is displayed (Com 1, com 2, etc.)
b. The box next to Com port is checked and no checks are in the boxes next to "direct to
probe" or "simulator" buttons.
6. Click on the Logging tab. The default file name displayed is cast00.csv. Please note
that if
the operator chooses to change nothing from the default configuration, then the file to be
downloaded (in most cases) will be stored at C:/Program Files/Digibar Pro/cast00.csv.
Should the operator choose to change the file name or destination directory, then click the
Browse button and rename the file with a more descriptive name (perhaps one including the
date and time) before proceeding. Making more descriptive file names aids in tracking data
from particular casts later on.
7. Click on the box next to the Begin Cast Download button and enter the # of the particular
cast in the DigibarPro control unit you wish to download (1 thru 10).
8. Click the Begin Cast Download button. Note that the status line at the bottom of the
Logging tab will show "Downloading cast # to log file", followed by "Download
complete". In addition, the circle in the lower right hand corner of the screen will change
colors while data is being transferred.
9. Click on the Graph tab. Observe that the graph of the downloaded data looks appropriate
for the cast conditions.
10. Click on the Grid tab. The grid tab allows the operator to observe and edit the collected data
in spreadsheet format. Once the operator is satisfied with the veracity of the data, click the
Save Button. At this point a windows menu titled "Save Cast File" will be displayed. In
this window, the operator will again be given the opportunity to save the file with a different
file name, to determine the destination directory, and to save the file as a different file type.