Furuno CI-35 Operator's Manual
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Furuno CI-35 Operator's Manual

Furuno CI-35 Operator's Manual

Furuno doppler sonar current indicator operator's manual model ci-35/35h
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  • Page 2 All rights reserved. All rights reserved. Printed in Japan Printed in Japan PUB.No. PUB.No. OME-72440 OME-72440 ( ( TATA TATA ) ) CI-35/35H CI-35/35H Your Local Agent/Dealer Your Local Agent/Dealer FIRST EDITION : FIRST EDITION : FEB. FEB. 1997 1997 : MAY.
  • Page 3 "DANGER", "WARNING" and "CAUTION" notices appear throughout this manual. It is the responsibility of the operator of the equipment to read, understand and follow these no- tices. If you have any questions regarding these safety instructions, please contact a FURUNO agent or dealer. DANGER WARNING...
  • Page 4 Use of the wrong fuse can cause fire or equipment damage. A warning label is attached to the equip- ment. Do not remove the label. If the label is missing or damaged, contact a FURUNO agent or dealer about replacement. Name: Warning Label (1) WARNING Type: 86-003-1011-0 To avoid electrical shock, do not Code No.: 100-236-230...

  • Page 5: Table Of Contents

    SAFETY INSTRUCTIONS ________________________________ i to ii TABLES FOR RECORDING USER PRESETS _______________ v to x CHAPTER 1. GENERAL _______________________________ 1-1 to 1-8 1. FEATURES ... 1-1 2. PRINCIPLE OF MEASUREMENT ... 1-2 3. TIDE, NAV-TIDE & TIDE DIFFERENTIAL... 1-5 CHAPTER 2. OPERATION _____________________________ 2-1 to 2-4 1.
  • Page 6 TIDE VECTOR/COURSE PLOT SECTION ... 3-10 to 3-15 TIDE VECTOR Display ... 3-10 TIDE HISTORY Display ...3-11 COURSE PLOT Display ... 3-12 TIDE EFFECT Display ... 3-13 DRIFT Display ... 3-15 HEAD-UP/NORTH-UP Presentation ... 3-15 RANGE CURSOR ... 3-15 ECHO LEVEL SECTION ... 3-16 ECHO LEVEL Display ...

  • Page 7: Tables For Recording User Presets

    TABLES FOR RECORDING USER The CI-30/35H provides menus to preset, various measuring and display conditions to customize the equipment precisely for your operating conditions. The form below is provided to record user presets, so they can be restored in the event of loss by misoperation or by maintenance/service work.
  • Page 8 ITEM TIME DATA WT SPEED NAV FORMAT NAV AID NAV DATA TIME INT ] min CRS CAL MODE CRS CAL EXEC START TIDE OUT INT 15 sec 2) RANGE MENU (Speed/distance/depth ranges) ITEM SPEED RANGE DIST RANGE ECHO DEPTH ECHO SHIFT 3) RANGE MENU ITEM SET ON/OFF...

  • Page 9: Important Notice On Tide Measurements

    (In nav-aided mode, tide accuracy depends heavily on gyro accuracy.) SETTING SHIP’S HEADING The CI-35/35H has the nav-aided mode to measure absolute tides even in deep waters where ground tracking is unattainable. To achieve reliable measurements, however, you must supply accurate heading (gyro) information and ship’s position (or speed/course) data to the CI-35/35H.
  • Page 10 A. When ground-tracking is attainable: 1. Make sure the navaid (GPS) is working correctly and accurately. 2. On CI-35/35H, select ground tracking mode. (Press the TRACKING MODE key to see the “GT” mode indication on the display.) 3. In Menu 4, set ‘CRS CAL MODE’ to “GT”.
  • Page 11 If you consider the difference of tide vector calculations is ground-tracking mode and in nav-aided mode, you will realize how important the gyro (heading) information is. Tide Calculation in Ground-Tracking Mode In ground-tracking mode, the CI-35/35H derives tide information from the following data. (1) Ship’s speed/course based on ground (ground speed) (2) Ship’s speed/course based on target layer...
  • Page 12 Tide Calculation in Nav-Aided Mode In nav-aided mode, the CI-35/35H derives tide information from the following data. (1) Ship’s speed/course sensed by the external navigator (GPS) (nav speed = pseudo ground speed) (2) Ship’s speed/course based on target layer (water speed) (3) Bearing of ship’s bow...

  • Page 13: Chapter 1. General

    1. FEATURES ¡ The functions of CI-35 and CI-35H are same. CI-35H is type approved by MOT (Ministory of Transportation). ¡ Even in deep waters where ground (bottom) reference is not available acoustically, the CI-35/ 35H can provide absolute movements of measuring layers by receiving position (or speed) data from GPS navigator and heading data from gyro compass.

  • Page 14: Principle Of Measurement

    This is called Doppler Effect. The CI-35/35H calculates and displays movements of ship and currents at specific depths by mea- suring Doppler shifts obtained from three separate directions. Planktonic layer Seabed Ship’s Speed...
  • Page 15 Tide Tide is movement of watermass at a particular depth. To know absolute tide (speed on ground), the following two data are required: 1 Ship’s speed and course based on ground 2 Ship’s speed and course based on measuring layer (A) Absolute tide is, then, given as a difference of these two speed vectors.
  • Page 16 Tide Differential Tide differential is a relative movement of tides at different depths, layer (A) and layer (B). To calculate tide differential, the following two data are used: 1 Ship’s speed and course based on layer (A) 2 Ship’s speed and course based on layer (B) Tide differential between two layers is, then, given as a difference of these two speed vectors.

  • Page 17: Tide, Nav-Tide & Tide Differential

    3. TIDE, NAV-TIDE & TIDE DIFFERENTIAL Tide (Absolute tide) Absolute tide can be measured in the ground tracking mode. Start of trip Layer A Fixed Assume that the ship and layer A are moving in the same direction, and ship’s speeds based on ground (Vg) and on layer A (Vwa) are measured as;...
  • Page 18 Tide Differential Tide differential is a relative movement of tides at different depths. It can be measured in the ground tracking, water tracking and nav-aided modes. Start of trip Layer A (Moving) Layer B (Moving) 2 kt 5 kt 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;...
  • Page 19 Cd = C1 - C2 = (Vg - Vwa) - (Vg - Vwb) = Vwb - Vwa = 5 - 8 = -3 (kt) In the water tracking mode, watermass just below the transducer (near-surface layer) is taken as the base of all measurements (virtual ground).
  • Page 20 Tide differential calculations in water tracking mode Tide speeds of layer A (C1) and layer B (C2) relative to near-surface layer (Vw) are calculated as follows: D1 = Vw - Vwa (Speed of layer A based on near-surface layer) D2 = Vw - Vwb (Speed of layer B based on near-surface layer) The tide differential (Dd) between layers A and layer B is;...

  • Page 21: Chapter 2. Operation

    1. CONTROL PANEL LAYOUT DEGAUSS button Press this button when picture is distorted or coloration is unbalanced due to magnetization. CONTRAST control Adjusts display color contrast. BRILLIANCE control Adjusts display brightness. DIMMER control Adjusts illumination brightness of control panel and manual tracking indication lamp.

  • Page 22: Function Of Keys And Controls

    2. FUNCTION OF KEYS AND CONTROLS POWER ON : POWER OFF: Plots event mark “+” at ship’s present position. EVENT Event mark moves relatively as ship runs. Functions as “ENTER” key or “EXECUTE” key when menu window is open. Starts tide effect plotting. (A cast mark “ TIDE EFFECT point.)
  • Page 23 Enables manual bottom acquisition in ground tracking mode. MANUAL TRACK PREPARATION 1. In MENU 2, set “REF DEPTH” to “OFF.” 2. Select ground tracking mode. MANUAL BOTTOM ACQUISITION 3. Press and hold lights. (Mode display should change from “GT” to “MAN”.) 4.

  • Page 24: Operating Procedure

    3. OPERATING PROCEDURE SUBJECT/PURPOSE Power-on Display brilliance adjustment Setting measuring depth Selecting tracking mode Reacquiring of temporarily lost ground echo (Manual bottom acquisition) Changing presentation mode for vector graph display Setting ranges ¡Speed range for tide vector display ¡Distance range for course plot display ¡Depth range for echo level display...

  • Page 25: Chapter 3. Display

    1. DISPLAY SAMPLES CHAPTER 3. DISPLAY Sample 1 Ground Tracking Mode (Ground echo available: GRN) Tide Differential Display (Based on layer 1) Tide Vector Display (North-up mode) Ship’s speed vector: GRN Layer 1 tide vector: YEL Layer 2 tide vector: PPL Layer 1 tide vector: L-BLU Tide dif.

  • Page 26: How To Read The Display

    2. HOW TO READ THE DISPLAY The display screen of the CI-35/35H is roughly divided into five sections as shown below. What is displayed in each section and how to use it is described on the following pages. FUNDAMENTAL DATA...

  • Page 27: Fundamental Data Section

    TIDE AVERAGE 15sec DIST Note: The CI-35/35H updates ship’s speed and course display in every 3 seconds with an averag- ing time selected in MENU 1. (See page 3-5 for averaging time setting.) Heading (Compass bearing) The course display appears in degrees and 32-point notation. If desired their locations can be swapped by changing the setting of an internal DIP switch.

  • Page 28: Tracking Mode Display

    TRACKING MODE SPEED TIDE Displays nav data source when NAV mode is selected. ¡GPS: GPS navigator ¡LC : Loran-C navigator ¡DC : Decca navigator ¡DR : Dead-reckoning ¡LA : Loran-A Tracking mode and echo availability for last 2 minutes. Flows leftward every 3 seconds.

  • Page 29: Error Status Display

    ERROR Status display When a source data for calculation and display seems to be abnormal, the following error indica- tion appears on the display. This is to alert the operator not to rely on the related data. No data from the Transceiver Unit. (Red block mark above kt ) SPEED 12.3...

  • Page 30: Tide Speed/Direction Display

    ` In the nav-aided mode, speed/direction values represent movement of the layer relative to pseudo ground. [Ground-based tide = Absolute tide] (Note that accurate ship’s speed/course and heading information must be applied to CI-35/ 35H to obtain reliable tide data.) To set measuring depth of tide;...
  • Page 31 Ground Tracking Mode Ship’s movement based on ground Tide movement of layer 1 Tide movement of layer 2 Tide movement of layer 3 Seabed Ship's movement measured by using satellies (Base on ground) Tide movement of layer 1 Tide movement of layer 2 Tide movement of layer 3...

  • Page 32: Present Time Display

    PRESENT TIME SPEED 12.3 TIDE AVERAGE ` Refer to page 4-4 to set date/time of the internal clock. (MENU 2 - “DATE/TIME”) ` It is possible to display time data received from the external navigation equipment, instead of the internal clock. However, the time display may not increment every one second since the time update depends on the incoming data interval.

  • Page 33: Drift/Tide Dif Section

    SET & DRIFT Press the key to call the set and drift display. DRIFT MODE COMPASS 270.0 17 : 41 : 00 TRIP 0.00 NM 10¡ 0.4 kt TIDE DIFFERENTIAL TIDE Press the key to call the tide differential display. MODE COMPASS 270.0...

  • Page 34: Tide Vector/Course Plot Section

    TIDE VECTOR ` Each tide vector can be switched on and off independently by MENU 1 - “LAYER n” setting. (Refer to page 4-2.) ` Tide differential vectors can be switched on and off by MENU 1 - “TIDE DIF DISP” setting. (Refer to page 4-2.) ` Each vector bar indicates “flowing to”...

  • Page 35: Tide History Display

    TIDE HISTORY The CI-35/35H can hold last 24 tide samples collected at a time interval of 15 sec, 1 min, 5 min, 10 min, 30 min or 1 hour. The tide history presents variation of these tide information with a string of round marks.

  • Page 36: Course Plot Display

    COURSE PLOT The course plot display provides ship’s track of last 20 minutes (200 points, one point sampled every 6 seconds). Event positions, stored by the COURCE ` Press the key to call course plot display, and press the same key again to restore PLOT previous display.

  • Page 37: Tide Effect Display

    TIDE EFFECT The tide effect display is useful for estimating three-dimensional deformation of cast net by the effect of tides at different depths. Notice that display merely shows movements of layers; it does not show true net shape in the water. Assume that you put drifting marks (virtual buoys) on the net at each layer below the ves- sel at an interval of six seconds.
  • Page 38 Example of tide effect plotting Tide of layer 2 Tide of layer 1 Buoy track of layer 1 Buoy track of layer 2 3-14 TIDE VECTOR/COURSE PLOT SECTION Casting the first virtual buoys at point “a”, vessel made 1/4 of a circle and reached point “b”.

  • Page 39: Head-Up/North-Up Presentation

    DRIFT Display North-up HEAD-UP/NORTH-UP key switches between “HEAD-UP” mode and “NORTH-UP” mode. Head-up RANGE CURSOR DIST 2.8 NM Distance from ship to range cursor. TIDE VECTOR/COURSE PLOT SECTION Switched on and off in MENU 1 Lateral speed (drift) True course (Leeway) Heading line Presentation...

  • Page 40: Echo Level Section

    ECHO LEVEL Two presentation modes are available for echo level display. ` The “COLOR” mode provides narrow echograms for three directions, presenting echo strengths in color gradation. (Color sounder mode) ` The “GRAPH” mode presents echo strengths of three beams with amplitude varying with depth. (A-scope mode) Echogram of beam 3 (port) Echogram of beam 1 (fore)

  • Page 41: Water Temperature Display

    WATER TEMPERATURE (Temperature data from external equipment required.) ` You can switch the temperature display on and off in MENU 1. 20.0 TEMP 17.2 15.0 MISCELLANEOUS DATA Display Time scale (Span: 17 min 30 sec) Temperature range Range width is fixed for 5˚C. It is shifted automatically to bring present temperature near center of the scale.
  • Page 42 MISCELLANEOUS DATA (Tide Averaging Time/Total Mileage/Display Range) ` You can change the unit of distance/range to km by an internal DIP switch. (Refer to installation manual.) AVERAGE 15sec Tide data averaging time. Averaging time selectable in MENU1 See page 4-2. 3-18 DIST Distance from center to...

  • Page 43: Chapter 4. Setting Operating Conditions

    CHAPTER 4. SETTING OPERATING The CI-35/35H has three menus which you can preset various conditions for measurements and presentations; basic menu range menu and alarm menu. General Rules for Menu Selection Main item selection: ** MENU 1 ** Jan/15/1997 MENU MODE...

  • Page 44: Menu 1

    MENU 1 * MENU 1 * Jan/15/1997 MENU MODE REF TIDE DIF (Note 1) TIDE AVERAGE TIDE HISTORY (Note 2) LAYER1 LAYER2 LAYER3 TIDE DIF DSP DRIFT DSP EVENT TEMP DSP (Note 3) ECHO LEV DSP (Note 4) BACKGROUND Knob 1Press key to store the settings and to erase the menu window.
  • Page 45 NOTE 1 * Raw tide data is obtainable every 3 sec. Tide averaging time of “1 min” means that averaged data for last one minute is displayed. (Note) Averaging time of “0 min” does not mean immediate display of raw data but average of 15 seconds.

  • Page 46: Menu 2

    MENU 2 (NOTE 1) * MENU * Jan/15/1997 MENU MODE REF DEPTH (Note 2) BEAM TEST SELF CHECK (Note 3) DEMO DATA (Note 1) TRIP RESET (Note 1) DATE/TIME MENU SELECT (Note 1) MENU SET (Note 1) Knob 1Press key to store the settings and to close the menu window. MENU 2Selection of reference depth data source for bottom search in ground tracking mode “OFF”: internal...
  • Page 47 NOTE 1 Menu items shown in red are protected (or locked) to prevent accidental change of setting. To change the setting of a protected item, follow the procedure below. 1. Place the vertical cursor on the item by using The following message appears. MENU SELECT IS LOCKED UNLOCKED PRESS EVENT KEY TO ENTER...

  • Page 48: Menu 3

    “-”: transducer’s fore-aft axis deviated to port “+”: transducer’s fore-aft axis deviated to starboard !0 O ffset angle to align course by CI-35/35H and course by external naviator [GPS] (-12.8 to +12.7°) (GTx.x and NAVx.x are offset angles calculated by “CRS CALIB EXEC” operation in MENU 4.) !1 D istance between transducers of CI-35/35H and other sounding device which is connected to the CI-35/35H as interfering source 1.
  • Page 49 “CRS CAL EXEC” on the next page. Course by GT mode of CI-35/35H BEARING CALIB Transducer BOTTOM TIDE TRACKING COURSE CALIB Course by external navigator (GPS) If course indication by CI-35/35H is deviated to clockwise direction, enter calibration angle with minus sign.

  • Page 50: Menu 4

    1Press MENU key to store (validate) the settings and to close the menu window. 2Selection of date/time display by internal clock (CI-35/35H) or external navigator’s clock (GPS) 3Selection of tracking mode when ground tracking unattainable (water tracking or nav-aided) 4Selection of communication data format with external navigator (Furuno CIF or NMEA0183) 5Selection of source navigator to receive spd/pos data 6Selection of source data for ship’s speed/direction display in nav-aided mode...
  • Page 51 GT/NAV/AUTO. NOTE 3 NAV FORMAT “CIF”: Furuno CIF format. It is desirable to use this format to get most accurate nav-tide. “NMEA”: World standard format. Select this format only when CIF is not available. (This may not provide accurate nav-tide because of its longer update interval.)

  • Page 52: Range Set Menu

    2. RANGE SET MENU 2 Distance range For course plot display 4 Color gradation range For echo level display in color mode 1. To change one of the above ranges, call the RANGE SET menu by pressing the *RANGE SET* SPEED RANGE DIST RANGE ECHO DEPTH...

  • Page 53: Alarm Set Menu

    3. ALARM SET MENU The ALARM menu permits selection of alarm sources and alarm parameters. ALARM FOR TIDE/TIDE DIFFERENTIAL/SHIP’S MOVEMENT This alarm is for alerting you to change in speed and direction of tide/tide dif./ship’s movement. Alarm range not set. (factory default) : Alarm range (zone) is preset, but alarm function is inactive.
  • Page 54 ALARM setting procedure 1. Call “ALARM SET” menu by pressing the 2. By the knob, place the vertical cursor an the desired item; then select an option item by the knob. 3. Press the key. The subsequent action depends on the location of the horizontal cursor. EVENT 1) When the horizontal cursor is on a speaker mark, the audible alarm OFF “...
  • Page 55 3) When the horizontal cursor is on an item which has the filled star mark “ following sub-menu appears. ALARM/ALARM ZONE SETTING SELECT PRESS EVENT KEY TO ENTER To make alarm setting valid; 1 Place the horizontal cursor on “SET ZONE” by alarm zone setting display appears.
  • Page 56 Alarm Priority Alarm priority is in the order as listed the Alarm menu. ALARM SET 1ST LAYER 2ND LAYER SHIP SPEED TRIP If multiple alarm conditions are violated, alarm having the highest priority is presented as a visual alarm at the bottom of the display. There is no priority for the audible alarm;...
  • Page 57 Turn knob to set a distance-run, and then hit the A filled star mark “ To start counting distance, press the perfomed internally but not shown on the display. When the preset alarm distance is reached, time-elapsed display becomes red and the counting is stopped. If the audible alarm is en- abled (“...
  • Page 58 Example A. Trip distance : 1 NM Ship’s Movement 1 nm (Alarm limit) Example B. Trip time : 1 hour Ship’s Movement 1 hour (Alarm limit) 4-16 Trip Time display Trip 00 : 05 : 40 Trip time (time-elapsed) to run 1 nm (Indication turns red and freezes.) Trip 00 : 00 : 00...

  • Page 59: Chapter 5. Troubleshooting

    CHAPTER 5. TROUBLESHOOTING 1. SELF-CHECK The CI-35/35H has a self-test facility for general diagnosis of its major circuits. If an unusual symptom is encountered during operation of the equipment, perform the self-check. If the self check reveals equipment fault, shown by the error code, report the results to the service technician when calling for service.
  • Page 60 3. Place the item cursor on “SELF CHECK” by the this item is protected (locked), the following alert appears. MENU SELECT IS LOCKED UNLOCKED 4. Select ‘YES’ by the green to show the item is unlocked. 5. Select a check option, SINGLE, CONTI, PANEL or ECHO by the key to start the self check.
  • Page 61 The following key and knobs function to change receiving conditions. KEY/KNOB To terminate the ‘ECHO’ check, press the (The CI-35/35H restarts in the same condition as if it is switched on.) key. MENU PANEL TEST...

  • Page 62: Error Indication

    2. ERROR INDICATION If the unit detects abnormal operation in the transceiver unit it displays a (blinking) message and a three-digit error code and releases the audible alarm. (Error indication will not interrupt the opera- tion of the equipment.) The error codes and the corresponding status are tabulated below. If multiple items are in error; only the latest error code appears.

  • Page 63: Internal Battery

    3. Internal Battery A battery fitted inside the display unit preserves data when the equipment is turned off, and its is life is about five years. When its voltage is low no clock may display, etc. Contact your dealer to request replacement of the battery.
  • Page 64 This page is intentionally left blank.

  • Page 65: Specification

    0.0 to 9.9 kts All directions in one degree steps (0 to 359 ) (relative and true bearing) CI-35: 3 layers fixed CI-35H: Maximum 11 layers (10 at constant interval between maximum and minimum preset depths, and a layer preset manually)
  • Page 66 2) TEXT DISPLAY ITEM (in table form) Ship's real speed: Ship's course: Tide speed: Tide direction: Depth of tide layer: Total mileage: Present time: Ship's heading: Optional text display (display on/off switchable) Tide differential speed: Tide differential Direction: Lateral speed: Drift angle (leeway angle) xx( ) Trip distance: Trip time:...
  • Page 67 Contact rating 0.2A/30V) Speaker output ...1ch (800mW into 4 to 8 ohms) Serial (IEC1162, equivallent to NMEA0183)...1ch Speed/course($VDVTG/VBW/VHW) Set & drift ($VDVDR) Tide spd/dir ($VDVCD) Current ($VDCUR) Serial (Furuno CI-7000 format) for data recording ...1ch (Date/time,ship's speed/course, tide speeds/directions,water AP-3...
  • Page 68 10. NAV-AIDED TIDE MEASUREMENT Even where ground tracking is unattainable, absolute tide movements (tide on ground) can be calculated by applying accurate position and heading data to CI-35/35H. This function may be extremely useful for deep sea purse seining or oceanographic survey.
  • Page 69 14. DISTRIBUTION BOX DS-370 1) Input Signal (TTL level) 2) Output Signal (1) OTX board (2) ODD board (3) OAD board (4) OLG board (5) OAC board (6) OAV board 3) Power Supply and Power Consumption Digital speed signal Log signal (400p/nm) Alarm signal Power on/off signal The following output boards are selective.

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