Klein 4900 Series Operation And Maintenance Manual page 52

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CHAPTER 3 Setup and Test
• Turn on the Rack Mount TPU. The POWER and EQUALIZATION IN
Start SonarPro and observe that the towfish is transmitting by viewing the
6.
output pulse in the Sonar Viewer window. Also check that navigation data are
being displayed in the Information window.
7. If a GPS is connected, check that navigation data are being displayed in the
Information window.
Deploy the towfish.
8.
9. Adjust the towfish within the water column so that it is at a safe altitude off
the bottom and under the boat wake (about 15 percent of range). A good
starting vessel speed is 4–5 knots. Check for the following:
• The image is satisfactory for both the 455-kHz and 900-kHz channels.
• Pitch, roll, depth, and altitude are being displayed.
• Speed and heading are being displayed from the navigation system.
10. Refer to the SonarPro User Manual (P/N 11210093) for instructions on how to
operate SonarPro to acquire, display and record sonar data.
Series 4900 Sonar System Operations and Maintenance Manual
PROCESS indicators should illuminate, and the SYS READY indicator
should flash. Then after approximately 1 minute, the EQUALIZATION IN
PROCESS indicator should turn off, the EQUALIZATION COMPLETE
and T/F POWER indicators should turn on, the SYS READY indicator
should stop flashing and remain on, and the STATUS TRIGGER indicator
should begin flashing at the ping rate of the sonar.
CAUTION When the towfish is close to the sea floor, the bottom tracking
(altitude) performance is less accurate. Exercise extreme caution when
operating the towfish at altitudes of less than 4 meters (13 feet).
P/N 11210091, Rev. 02