User manual HUMMINBIRD PIRANHA 1 & 2

[. . . ] The returned "echoes" are plotted on the Piranha's LCD display and create a very accurate picture of the underwater world with distance to underwater objects such as the bottom, fish and structure. What You See On Screen The Piranha displays underwater information in an easy-tounderstand format. The top of the display corresponds to the water surface, and the bottom of the display corresponds to the Depth Range automatically selected for the current water depth. The Bottom Contour varies between the two as the depth under the boat changes. Digital readouts provide precise information for depth, fish and water temperature (separate purchase required). [. . . ] Select ON to magnify the area around the bottom thus revealing fish and structure close to the bottom that may not be visible in typical operation. In Zoom, the Piranha continually changes the upper and lower Depth Range to keep area just above and below the bottom on the display. Select OFF to return to normal operation. Upper Zoom Range Press POWER-MENU until the FISH ID menu appears. Select either OFF to view "raw" sonar returns, or ON to take advantage of Piranha's ability to identify sonar returns that are determined to be a fish. A select number of possible fish returns will be displayed with depth. Fish ID Raw Sonar Structure Magnified Bottom with More Detail Lower Zoom Range O-13 Maintenance Your Piranha is designed to provide years of trouble-free operation with virtually no maintenance. Follow these simple procedures to ensure your Piranha continues to deliver top performance. If the unit comes into contact with salt spray, wipe the affected surfaces with a cloth dampened in fresh water. Do not use a chemical glass cleaner on the lens - this may cause cracking in the lens. When cleaning the LCD protective lens, use a chamois and nonabrasive, mild cleaner. If your boat remains in the water for long periods of time, marine growth can reduce the effectiveness of the transducer. If your boat remains out of the water for a long period of time, it may take some time to wet the transducer when returned to the water. Small air bubbles can cling to the surface of the transducer and interfere with proper operation. These bubbles dissipate with time, or you can wipe the face of the transducer with your fingers after the transducer is in the water. Never leave the unit in a closed car or trunk--the extremely high temperatures generated in hot weather can damage the electronics. Check the power connection to the Piranha. It is possible to force the power cable connector into the cable holder incorrectly. Examine the contacts on the back of the unit to ensure there is no corrosion. 2. There is no transducer detected. The Piranha has the ability to detect and identify that a transducer is connected. When Powering on, if a message indicates "transducer not connected", ensure that an appropriate transducer connector is plugged into the unit. Second, inspect the transducer cable from end to end for breaks, kinks, or cuts in the outer casing of the cable. If the transducer is connected to the unit through a switch, temporarily connect it directly to the unit and try again. If none of these items identifies an obvious problem, the transducer itself is probably the problem. Be sure to include the transducer if returning the unit for repair. 3. [. . . ] If the transducer is transommounted, there are two adjustments available to you--height, and running angle. Make small adjustments and run the boat at high speeds to determine the effect. This can also be a result of air or turbulence in the transducer location caused by rivets, ribs, etc. Customer Resource Center If you have any questions, call our Humminbird Customer Resource Center Hotline: 1-334-687-0503 Throughout the U. S. Or visit our web site: www. humminbird. com for Product Support and troubleshooting guides. [. . . ]