Activating And Testing The System At Sea - Klein 3900 Series Operation And Maintenance Manual

CAUTION Serious damage to the towfish electronics may occur if the
towfish is operated on deck for periods longer than fifteen minutes.
Between periods of operation, let the sonar cool for fifteen minutes. In high
temperature climates, protect the towfish from direct exposure to the sun prior to and
during operation.
6. On the laptop computer, start SonarPro and observe that the towfish is
transmitting by viewing the output pulse in the Sonar Viewer window. Also check
that navigation data are being displayed in the Information window.
7. Select the 150-range and select the 445-kHz operation. Allow the TVG to
normalize; it will take about two minutes.
8. Perform a rub test on the port and starboard transducers to confirm that the
receiver mode is operating properly. Do this test by vigorously rubbing each
transducer, one at a time, while observing the Sonar Viewer window in SonarPro
for returns.
9. Exit SonarPro and turn off the laptop computer and the SP-II TPU.
3.7.2

Activating and Testing the System at Sea

CAUTION When the towfish is close to the sea floor, the 900-kHz
bottom tracking (altitude) performance is less accurate. Exercise
extreme caution when operating the towfish at altitudes of less than
4 meters (13 feet).
To activate and test the system at sea:
Verify that the towfish has been properly set up and the system components
1.
connected.
2. Turn on the navigation system and let it acquire its location.
3. Verify that the tow cable is connected to the SP-II TPU and the towfish.
4. Turn on the laptop computer and wait for the Windows desktop to appear.
NOTE Should the DC power cord be connected with the polarities
reversed, the D/C POLARITY indicator will illuminate when the A/C-D/C
switch is switched to D/C. Should this situation occur, reverse the
connection.
System Activation and Test
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