Configuring the SU90 system for data recording
Record allows you to record echo data. The data are saved on the hard disk, or on an external data storage device, according to the preferences you have defined. If necessary the files can be copied or moved to another storage device or a network drive.
Prerequisites
If you wish to save your recorded data on an external hard disk, make sure that it is connected to the computer.
Context
The File Setup settings control how and where the recorded files are saved on the hard disk, or on an external storage device. By adding a prefix to the file names you can identify the files you have recorded during a specific survey. You can also define a maximum size of the files.
You can start and stop data recording in several ways.
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a Select the red circle on the right side of the Record RAW button.
b Open the Record RAW button and select On.
c Select the black rectangle to stop recording.
The Record indicator on the top bar will switch to red colour when recording is active. The Record indicator can not be used to start or stop recording.
Procedure
1 Open the Operation menu.
2 Locate the Record button.
3 Select the middle of the button to open it for access to the available options.
4 Select File Setup to open the dialog box.
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5 On the Directory page, select Browse to choose a folder for the data files.
The data files will normally become very large. If you wish to record large amounts of data, make sure that you have enough space on your hard disk. The SU90 system is not provided with unlimited disk capacity. We recommend that you either save the data files to an external storage device, or use a network disk.
6 On the Raw Data page, type a prefix into the File name prefix text field.
If you do not have a computer keyboard connected to your SU90 system, select the Keyboard button to open an on-screen keyboard.
7 On the Raw Data page, define a maximum size for the data files.
Tip
Set the value to 0 (zero) if you do not wish to limit the file size. The Split File function will start a new file with the next ping regardless of the maximum file size you have defined.
8 On the Raw Data page, observe the Current file size field.
The current size of the file you are recording is shown in this field. Data is only shown while recording is taking place. If the current file size gets too big during recording, select Split File on the Record button. This will close the current file, and then automatically continue recording to a new file.
9 Select OK to save the selected settings and close the dialog box.