User manual HUMMINBIRD PIRANHA 3 INSTALL GUIDE

[. . . ] PIRANHA 3, 4 & 5 OPERATION GUIDE Thank You Thank you for purchasing a Piranha fishfinder from Humminbird, America's #1 Manufacturer of quality consumer marine electronics WARNING!This device should not be used as a navigational aid to prevent collision, grounding, boat damage, or personal injury. When the boat is moving, water depth may change too quickly to allow time for you to react. Always operate the boat at very slow speeds if you suspect shallow water or submerged objects. Powering ON and OFF Press and release POWER-MENU to power the Piranha on. [. . . ] If your boat remains in the water for long periods of time, marine growth can reduce the effectiveness of the transducer. Periodically clean the face of the transducer with liquid detergent. Note: Piranha 5's dual beam feature indicates the depth of the return and the beam that the return comes from. Returns from the narrow beam are shown with solid fish icons while the wide beam returns are displayed with hollow fish icons. O-13 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. 4. When in very shallow water, I get gaps in the bottom reading and inconsistent digital depth indication. The Piranha will work reliably in water 1m (3') or deeper. The depth is measured from the transducer, not necessarily from the surface. The unit comes on before I press POWER, and won't turn off. Check the transducer cable -- if the outer jacket of the cable has been cut and the cable is in contact with bare metal, you will need to repair the cut with electrical tape. If there is no problem with the cable, disconnect the transducer from the unit and see if the problem is corrected, to confirm the source of the problem. I get gaps in the reading at high speeds. If the transducer is transom-mounted, 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. It may take several tries to optimize high-speed operation. This can also be a result of air or turbulence in the transducer location caused by rivets, ribs, etc. Your Piranha has over-voltage protection that turns the unit off when input voltage exceeds 20 VDC. Some outboard motors do not effectively regulate the power output of the engine's alternator and can produce voltage in excess of 20 volts when running at high RPMs. The SureVolt power stabilizer from Humminbird maintains a steady voltage to the unit and solves this problem. The Piranha will not operate on input voltages below 8 VDC. The display shows many black dots at high speeds and high sensitivity settings. [. . . ] This Service Policy is valid in the United States only. This applies only to Humminbird products returned to our factory in Eufaula, Alabama. This Service Policy is subject to change without notice. Returning Your Unit for Service Before sending your unit in for repair, please contact the factory, either by phone or by email, to obtain a Repair Authorization Number for your unit. Please have your product model name and serial number available before calling the factory. [. . . ]