Klein 3900 Series Operation And Maintenance Manual page 46

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CHAPTER 3 Setup and Test
5. Turn on the SP-II TPU by switching the A/C-D/C switch to A/C for AC operation
or to D/C for DC operation.
The PWR, T/F PWR and LOCK LOSS indicators should illuminate, then after
approximately 45 seconds, the LOCK LOSS indicator should turn off and the
T/F TRIG indicator should begin flashing at the ping rate of the sonar.
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. Deploy the towfish.
8. Adjust the towfish within the water column so that it is at a comfortable 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 445-kHz and 900-kHz channels.
• Pitch, roll, depth, and altitude are being displayed.
• Speed and heading are being displayed from the navigation system.
9. Refer to the SonarPro User Manual (P/N 11210079) for instructions on how to
operate SonarPro to acquire, display and record sonar data.
Series 3900 Sonar System Operations and Maintenance Manual P/N 11210085, Rev. 01