Page 3 - SAFETY INSTRUCTIONS; ELECTRICAL SHOCK HAZARD; WARNING; CAUTION
i SAFETY INSTRUCTIONS WARNING Immediately turn off the power at theswitchboard if water leaks into theequipment or something is dropped inthe equipment. Continued use of the equipment can causefire or electrical shock. Contact a FURUNOagent for service. Do not disassemble or modify theequipment. Fir...
Page 4 - ii; Table of Contents
ii Table of Contents PRINCIPLE OF MEASUREMENT ................................................................................ 1 PRINCIPLE OF MEASUREMENT, FEATURES.................................................................................. 1 TIDE, NAV-TIDE & TIDE DIFFERENTIAL ................
Page 5 - PRINCIPLE OF MEASUREMENT; PRINCIPLE OF MEASUREMENT, FEATURES; Ship’s Speed
1 PRINCIPLE OF MEASUREMENT PRINCIPLE OF MEASUREMENT, FEATURES When a moving vessel emits an acoustical pulse into the water at an angle, a portion of emitted energy is reflected from the seabed and other microscopic objects in the sound path, such as plankton or air bubbles. The frequency of the rec...
Page 6 - Tide
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...
Page 7 - Nav Tide; Tide Differential
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...
Page 10 - Tide differential calculations in ground tracking mode
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 ...
Page 12 - IMPORTANT NOTICE ON TIDE MEASUREMENTS; SETTING SHIP’S HEADING
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...
Page 14 - Features
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...
Page 15 - SYSTEM OVERVIEW; Control Description
11 SYSTEM OVERVIEW Control Description Display unit (CI-800) Transceiver unit (CI-810) Figure 11 Display unit Figure 12 Transceiver unit
Page 17 - How to Read the Displays; Echo display
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
Page 18 - When speed or depth data appears in red...; Course plot 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,...
Page 20 - MAIN MENU DESCRIPTION; Basic Menu Operation; DEP Menu
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...
Page 23 - OPERATION; Basic Operating Procedure; Turning on the system; Selecting operating mode
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 ...
Page 24 - Setting measuring depths
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...
Page 25 - Setting tide differential layer; Turning off the power
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.
Page 26 - Setting Tide Measuring Depths on the Echo Display; Selecting a layer, setting depth
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...
Page 27 - Setting up the Echo Display; Setting tide speed vector range; Setting echo depth range
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...
Page 28 - Setting up the Course Plot Display; Setting the plot range; Setting plot orientation
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...
Page 29 - Marks; Event mark; Target point mark
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 ...
Page 30 - Erasing marks; Calculating Trip Distance; Opening the system menu
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...
Page 31 - Displaying the CALB menu; Menu items; Water Speed Display Setting
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...
Page 32 - Nav Data Setting
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...
Page 33 - MAINTENANCE & TROUBLESHOOTING; Preventive Maintenance; Regular checks; Display unit/ transceiver unit
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...
Page 34 - Troubleshooting
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...
Page 35 - Self Tests, Demonstration Display; Display the system menu; Self test menu description
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...
Page 36 - Starting the demonstration display
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 ...
Page 37 - Self Test Results; System test
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...
Page 38 - Error display
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...
Page 39 - Echo test; Checking echo display intensity; Checking echo display range; Panel test
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...
Page 40 - MENU TREE
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...
