User manual HUMMINBIRD LCR 3004

[. . . ] TRANSDUCER MOUNTING PROCEDURE Humminbird's high-speed transducer is supplied with your LCR. This transducer has been designed to give good high speed readings on most all boat designs, including aluminum. Please carefully consider the following before installing your transducer. TRANSDUCER MOUNTING OPTIONS A. Transom Mount- The Humminbird high speed transducer allows the transducer element to be mounted below the bottom of the boat hull keeping the transducer out of turbulent water and insuring good high speed operation. [. . . ] range, the bottom depth must reach about 24 feet before the depth range will change to 60 feet. You may also manually change the depth scale by pressing the depth set button. Each time this button is depressed the range is decreased by one setting. scale, pressing the depth set button once will change the scale to 0-15 ft. Note: Should you attempt to change a depth scale which is less than the actual bottom depth, the computer will automatically change the depth scale back to the proper position. For example, if you are in 40 feet of water and you change the depth scale to 30 feet, the computer will automatically change back to the 60 foot scale. Remember, in the manual mode (see paragraph 4 below) the automatic range change is not active. The LCR 3004 has four depth ranges, 0-15; 0-30, ' 0-60; and 0-120: The graduated depth scales down the left and right side of the display will identify the proper depth based upon the range you are on at the time. On the 0-30' scale a two foot increment, on the 0-60' scale, a five foot increment and on the 0-120' scale, a ten foot increment. Sensitivity: Automatic Mode - Each time the unit is turned on, the automatic feature is on. In the automatic mode the sensitivity is adjusted automatically to give a good return and the correct depth range is selected. The word Auto will appear in the upper right hand corner of the display any time the unit is in the automatic mode. The sensitivity bar at the top of the screen will increase ordecrease automatically indicating the amount of sensitivity being used. In shallow waterthe sensitivity needed to achieve a good return will be less. Also in the automatic mode, the unit will blackout the display beneath the bottom line. Manual Mode - There are two ways of putting the LCR 3004 in the manual mode: (1) depress the Auto "On/Off" button or (2) depress either the manual decrease (-) or increase (+) button. You will notice that the word "Auto" in the upper right hand corner of the display has gone off. The operator can control the amount of sensitivity by depressing the (+) or (-) button. When the (+) or (-) button is pressed once, the sensitivity setting at the top of the screen will change by one division. If the (+) or (-) button is held down the setting will move up or down as long as the button is held down. When the maximum or minimum setting is achieved, the unit will make a "Chirping" sound indicating a limit has been reached. In the manual mode everything below the bottom is no longer blacked out, therefore a second return or double echo can be displayed if desired. Also, the hardness of the bottom can be determined by the thickness of the bottom return. [. . . ] By pressing the depth set button three or four times you will see that the depth scale will change down to the 0 to 15 foot scale and then to the 0 to 120 foot scale. Step 4: Press the Auto Sensitivity On/Off button to change to the manual mode. Notice that the word AUTO in the upper right hand corner of the display has gone off. You can now change the sensitivity setting by pressing the increase + or decrease - buttons. [. . . ]