User manual FURUNO CI-60G OPERATORS MANUAL

[. . . ] Immediately turn off the power at the switchboard if the equipment is emitting smoke or fire. Continued use of the equipment can cause fatal damage to the equipment. A heater can melt the equipment's power cord, which can cause fire or electrical shock. Electrical shock can result. WARNING Keep heater away from equipment. i CAUTION Check the zinc plate (anticorrosion measure) regularly for corrosion and replace it when the ship is drydocked. [. . . ] The maximum tide speed (or ship's speed) range may be chosen with TIDE RANGE in the DISP1 menu. Tide direction (or course) may be chosen with TIDE GRAPH in the DISP1 menu. For the tide graph, graph lines are displayed in colors: Layer 1, Yellow; Layer 2, Purple, and Layer 3, Light-blue. For the tide differential graph, the tide differential between layers 1 and 2 is shown in purple and that between layers 1 and 3 in light-blue. Tide (or tide differential, speed) graph 2-7 2. INTERPRETING THE DISPLAYS Description of graph display indications (con't from previous page) Item Water temperature graph Mode marker Description The water temperature graph may be turned on or off with TEMP GRAPH in the DISP1 menu. Green: Ground tracking mode Blue: Water tracking mode, nav mode Background: Ship's speed error Depth graph The depth graph displays depth data in graph form. If, in the water tracking mode, the depth is greater than the depth range no depth data is displayed. To graph depth from an external source, set DEPTH SOURCE in the OTHER menu (sub menu in the installation menu) to EXTERNAL. The trip distance marker shows trip distance in one-mile increments, in green and background color alternately as shown below. 1 mile Trip distance marker Background Green color 2-8 2. INTERPRETING THE DISPLAYS 2. 4 Course Plot Display Own Ship Position Tide Vector Ship's Track North Mark *: Sensor required. Text Window Scale DIV Tide Display Interval Position* Course plot display Description of course plot display indications Item Text window Description The text window can be turned on or off with TEXT WINDOW in the DISP2 menu. When you move the cursor from ALARM to INSTALLATION, the following message appears. To open the INSTALLATION menu, press any function key. PRESS ANY FUNC KEY TO OPEN INSTALLATION MENU. Selected item is displayed in reverse video and menu help appears in the box at the bottom of the menu. To change numerical value, press to raise the value; to lower the value. CUSTOMIZING THE SYSTEM 3. 2 Function Keys 3. 2. 1 Programming the function keys The function keys ([F1]-[F3]) provide menu shortcut operation. Note: RESET TRIP LOG, TEST and BOTTOM SEARCH in the MENU 1 cannot be used. Press and hold down a function key until you hear three beeps and the message "PROGRAMMED SELECTED ITEM TO [F*] KEY" is displayed (about five seconds). Press the [MENU] key to close the menu. 3. 2. 2 Using the function keys The function keys provide shortcut menu operation, and they are not programmed at the factory. If a function key contains no program when pressed, the message "NO FUNCTION ASSIGNED TO [F*] KEY. " appears on the display for about five seconds. Within five seconds after completing step 1, operate the CursorPad to change setting as below. Choose option: or to scroll rightward; or to scroll leftward. 3-3 3. [. . . ] (Error in size and bearing means the tide vector is unreliable and useless. ) To obtain dependable tide/tide differential data, it is desirable to reduce the gyro error below 1degree. Note that the depth must be at least 40 m in order to calculate tide. A: H: N: W: True bearing of ship's bow (ref. bow) True north Ship's bow (3) Gyro reading H = A N W (2) Water speed vector (1) Nav speed vector Tide Vector Without gyro error True north A H N (3) Gyro reading Ship's bow W Gyro error (2) Water speed vector (1) Nav speed vector Tide Vector With gyro error Relative angle of water speed vector and nav speed vector changes with gyro error. Accordingly, the size (speed) and direction of tide vector change. AP-5 PRINCIPLE OF OPERATION PRINCIPLE OF OPERATION When a moving vessel emits an acoustical pulse into the water at an angle, a portion of the emitted energy is reflected from the bottom and other microscopic objects in the sound path, such as plankton or air bubbles. [. . . ]