Furuno CI-80 - Manuals

2 Fixed GPS satellites Nav-aided speed(Pseudo ground tracking speed) Water tracking speed Ground tracking speed Near-surface layer :Base of measurement Figure 2 Tide Tide is movement of watermass at a particular depth. To know absolute tide (speed on ground), the following two data are required: 1 S...

3 Nav Tide Nav-Tide is an absolute movement of watermass at a particular depth, taking speed information from the external navigator (GPS) as a pseudo ground tracking speed. To calculate Nav-tide, the following two data are required: 1 Ship’s speed and course obtained by external navigation equipmen...

6 Assuming that the ship, layer A and layer B are moving in the same direction, and ship’s speeds based on layer A (Vwa) and on layer B (Vwb) are measured as; Vwa = 8 kt (Ship’s speed based on layer A) Vwb = 5 kt (Ship’s speed based on layer B) Tide differential calculations in ground tracking mode ...

8 [READ THIS FIRST!!] IMPORTANT NOTICE ON TIDE MEASUREMENTS (In the nav-aided mode, tide accuracy depends heavily on gyro accuracy.) SETTING SHIP’S HEADING The CI-80 has the nav-aided mode to measure absolute tides even in deep waters where ground tracking is unattainable. To achieve reliable measur...

10 Features The CI-80 mainly consists of three units: a display unit, a transceiver unit, and a transducer, each compact enough to fit on small boats. The main features of the CI-80 are; • Even in deep waters where ground (bottom) reference is not available acoustically, the CI-80 can provide absolu...

11 SYSTEM OVERVIEW Control Description Display unit (CI-800) Transceiver unit (CI-810) Figure 11 Display unit Figure 12 Transceiver unit

13 How to Read the Displays The CI-80 has two display modes: echo display and course plot display. A display may be selected with the DISP MODE key. Echo display Figure 13 Sample echo display

14 When speed or depth data appears in red… Speed or depth data containing error appears in red. Ships speed Cannot find reference echo in respective tracking mode. Tide speed Cannot find echo in given layer. Set depth Depth set is invalid. In ground tracking mode, depth should be shallowerthan 7 m,...

16 MAIN MENU DESCRIPTION Most major functions of the CI-80 are carried out through an easy-to-follow menu system. The menu system consists of two main groups of menus: main (operation) and system (testing, calibration). This chapter covers the main menu. For complete menu tree, see page 36. Basic Me...

19 OPERATION Basic Operating Procedure Turning on the system 1. Turn on the transceiver unit. 2. Turn on the display unit. 3. Adjust brilliance of display. The display unit conducts a check of the system, displaying the results about 40 seconds after turning on the power. Figure 20 Display unit and ...

20 „ Ground Tracking Mode: Shows absolute ship and tide movements based on ground. (Bottom echo required.) „ Water Tracking Mode: Shows movements of ship and tide relative to near-surface water. „ Nav-aided Mode: Shows ship’s movement measured by the external navigation equipment, and the tide movem...

21 Setting tide differential layer 1. On the DEP menu, press / to select REF TIDE DIFFERENCE. 2. Press / to set layer. Figure 22 How to set tide differential Turning off the power Press the power switch on the display unit.

22 Setting Tide Measuring Depths on the Echo Display Earlier you learned how to set tide measuring depths on the DEP menu. Measuring depths can also be set directly on the echo display. Selecting a layer, setting depth 1. On the echo display, press / to select layer desired. Selected layer’s depth i...

23 Setting up the Echo Display Setting tide speed vector range 1. Press the MENU key. 2. Press ◄ / ► to select the ECHO menu. 3. Press / to select SPEED RANGE. 4. Press / to set speed. (Default setting: 1.0 knot) Setting echo depth range 1. Press / to select ECHO DEPTH RANGE. 2. Press / to set depth...

24 Setting up the Course Plot Display The course plot display mainly plots ship’s track. It can be displayed by pressing the DISP MODE key. Figure 25 Sample course plot display, TRK menu Setting the plot range 1. Press the MENU key. 2. Press ◄ / ► to select the TRK menu. 3. Press / to select PLOT RA...

25 Marks The CI-80 has two types of marks which can be inscribed on the display: event mark and target point mark. Figure 27 Appearance of event mark and target point mark Event mark The EVENT key inscribes present position on the display. It is useful for marking important locations, etc. 25 event ...

26 Erasing marks 1. Press the CURSOR ON/OFF key. 2. Operate the four arrow keys to place cursor on mark to erase. 3. Press the EVENT key (or TARGET POINT key). Calculating Trip Distance Press the TRIP key to start calculation of trip distance from present position. The trip distance indication is au...

27 Displaying the CALB menu 1. Press ◄ / ► to select the CALB menu. 2. Press / to select menu item. 3. Press / to set offset. Menu items GT SPD CALIB: Raise setting when ground tracking speed is slower than ship’s speed. WT SPD CALIB: Raise setting when water tracking speed is slower than ship’s spe...

28 MODE CALB SELF TEST OFF SYS OFF ON T/D NAV SPD L/L ECHO PNL DEMONSTRATION WATER SPEED NAV DATA *1: Shown when tide processor is active. *1 *1 Figure 31 MODE menu Nav Data Setting 1. Press the DISP MODE key to display the echo display. 2. While pressing and holding down the TRIP key press the MENU...

29 MAINTENANCE & TROUBLESHOOTING Preventive Maintenance Regular checks • Regular maintenance is important for continued performance. Check the following on a monthly basis. • Check that all connectors and cables are securely tightened. • Check grounding systems of units for corrosion. • Also reg...

30 Troubleshooting The troubleshooting table which follows provides simple troubleshooting procedures which the user may use to restore normal operation. If normal operation cannot be restored, do not attempt to check inside any unit. Any repair is best left to a qualified technician. Table 2 Troubl...

31 Self Tests, Demonstration Display The CI-80 has four self tests and a demonstration display which check the system for proper operation. Display the system menu 1. Press the DISP MODE key to select the echo display. 2. While pressing and holding down the TRIP key, press the MENU key. Conducting s...

32 Starting the demonstration display The demonstration display checks the controls on the display unit and conducts a loopback test between the display unit and the transceiver unit. 1. Press / to select DEMONSTRATION. 2. Press to select ON. 3. Press the EVENT key. The echo display appears and the ...

33 Self Test Results System test The system test check results appear at each power on or whenever the system check is conducted though the self test. SYSTEM CHECK ---------CI-800--------- IP VOL 66503001** ICP Board ROM prog. no. IP DSW “00 00” IPU Board’s DIP switch setting in hexadecimal notation...

34 Error display “OK” appears for normal memory IC test. For fault NG (No Good) and asterisk (*) appear next to ROM/RAM number. Table 3 Error number display and meaning Error number Reason Circuit board to check 000 Input voltage JCPA, JIFA 001 Overheated transducer element JLGA, JCPA, JIFA* 002 Abn...

35 Echo test Checking echo display intensity Press the right and left arrow keys. The SHIFT indication should change with key operation, between 0 and 100. Checking echo display range Press the up and down arrow keys. The echo display range should in steps of 50 between 0 and 300. Figure 34 Sample e...

36 MENU TREE MAIN MENU DEP LAYER1LAYER2LAYER3REF TIDE DIFFERENCE ECHO SPEED RANGEECHO DEPTH RANGEECHO LEVEL SHIFT TRK PLOT RANGEPLOT MODETRACK DISPLAY MARK PRESET REFERENCE VALUETIDE HISTORY AVR SHIP SPD AVRTIDE AVERAGEWT SPD DEPTH SYSTEM MENU MODE SELF TEST OFFSYSECHOPANEL DEMONSTRATION OFFON WATER...