The Echotrac MKIII is designed to operate with minimal operator input yet still provide the flexibility required by a wide range of survey conditions. 1. With the unit’s front panel power switch in the OFF position, confirm that the Power (either AC or 24VDC), Transducer and Computer cables are properly connected at the rear of the unit. 2. Check that sufficient chart paperis loaded for the survey at hand. 3. Turn the Power Switch from the OFF position to Stby. and confirm that the LCD display comes on showing first the Sign-on Message, and is followed shortly by display of the SYSTEM Menu. The printer should also print the Sign-on message. NOTE: Should you feel that a return to the sounder’s default parameter values is called for, then select the Default Reset parameter in the SYSTEM menu and press Enter. 4. Depending on water depth and bottom type, set the TxPower switch to mid-range (position 6). 5. Turn the RxGAIN potentiometer to the 12 o'clock position. 6. Switch POWER to ON. The unit should print the "Key" parameters. 7. Adjust RxGAIN and TxPOWER to get a clear strong record with few alarms on the displayed depth or printed on the chart.
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