USER MANUAL Premier Way, Abbey Park Romsey, Hampshire, S051 9DH England Tel: (+44) 01794 518448 Fax: (+44) 01794 518077 www.BandG.com © Brookes & Gatehouse Ltd.
The copyright of this Manual is the property of Brookes & Gatehouse Ltd.
USER MANUAL Amendment No.
PRODUCT LIABILITY AND SAFETY WARNINGS PRODUCT LIABILITY Brookes and Gatehouse Limited accept no responsibility for the use and/or operation of this equipment. It is the user’s responsibility to ensure that under all circumstances the equipment is used for the purposes for which it has been designed. WARNING - ELECTRICAL HAZARD This equipment uses high voltage electrical power. Contact with high voltages may result in injury and/or loss of life.
RECORD OF AMENDMENTS Date Amendment Number Description Signature HB-0844-04
PART 1 - INTRODUCTION CONTENTS Para Page 1.1 SYSTEM DESCRIPTION 1-3 1.2 1.2.1 1.2.2 1.2.3 PROCESSORS Main Processor Unit Expansion Unit Halcyon Gyro Processor 1-3 1-3 1-4 1-4 1.3 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 1.3.6 1.3.7 1.3.8 SENSORS Masthead Unit Paddle Wheel Sonic Speed Unit Depth Sensor Super Halcyon 3 Fluxgate Compass Halcyon 2000 Compass Halcyon Gyro Stabilised Compass Additional Sensors 1-4 1-4 1-5 1-5 1-5 1-5 1-5 1-5 1-6 1.4 1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 1.4.
1.1 1.
GPS Antenna Unit Mast Head Unit 20/20 20/20 Mast Halcyon Compass Display FFD Hal cyon 000 Deck GPS Plus FFD 000 Chart Table NMEA FFD 000 Hydra 2000 Main Processor EP Network Hull Additional Sensors Sea and Air Temperature, Heel, Trim, Barometric Pressure and Strain Halcyon 2000 Compass Depth Sonic Speed Unit Boat Speed Fig 1.
PART 1 - INTRODUCTION 1.1 SYSTEM DESCRIPTION The Hydra 2000 is a fully integrated instrumentation system that displays information obtained from various sensors on a choice of displays positioned throughout the yacht. Information is fed from the sensors to a Main Processor. From the information gathered by the sensors the Main Processor distributes information to the various displays via the Fastnet cable.
Resettable Log Dead Reckoned Course and Distance Leeway Heading Corrected for Leeway (Course) True Wind Speed True Wind Angle True Wind Direction Heading on Next Tack or Gybe Pressure Trend In addition, the processor provides four outputs for analogue indicators. Any one of eight different types of analogue indicator can be used on any one of these outputs. It also contains the battery backed memory that stores all the calibration, damping and alarm settings whilst the power is OFF.
1.3.1 Masthead Unit The Masthead Unit senses apparent wind speed and wind angle. The unit is light weight and sealed. 1.3.2 Paddle Wheel The Paddle Wheel Speed Sensor is designed primarily for cruising yachts and consists of a paddle wheel that protrudes through the hull via a housing. So that the paddle wheel may be cleaned at regular intervals the housing is provided with a flap valve that closes automatically when the unit is pulled back into the yacht. 1.3.
The Halcyon 2000 Compass has the ability to ‘learn’ the magnetic effect of the vessel on the compass and automatically apply deviation correction. 1.3.7 Halcyon Gyro Stabilised Compass The Halcyon Gyro Stabilised Compass (HGSC) is a high performance, solid state compass that provides the best available heading information through the use of rate gyros to correct for the motion of your yacht. It also provides high accuracy Heel and Trim.
plotters and radars, etc. from different manufacturers. For example your GPS Plus may be at the chart table, but you require its information to steer by on deck. Your Hydra displays can show that information if interfaced to your GPS Plus. The Hydra System can also provide information to your autopilot. NMEA is the National Marine Electronics Association, who have produced a number of standard specifications for the interconnection of marine electronic instruments.
1.4.6 Halcyon Display This is a dedicated compass display that shows heading in digital form and has a bar graph display that can be used as a steering indicator. Refer to Part 5 - Options for further details. 1.5 CALIBRATION Before using the Hydra 2000 for navigational purposes it is important that the system is correctly calibrated for your installation. The calibration process has been simplified as much as possible, so that all you need is accurate information.
The principle is that at any one level there is a set of choices which you can scroll through (select) until you find the one you want. Having found the correct menu entry, it is then selected - the FFD then displays the first choice in the next level of menu down. Here you once again scroll through the available options until you find and select your choice. The function options available through each Menu Choice are listed in Table 1.1 - Function Menus.
Wind FUNCTION Apparent Wind Angle APP W/A True Wind Angle TRUE W/A True Wind Direction TRUE DIR Head/Lift Trend LIFT/HDR Apparent Wind Speed m/s APP W/S MS True Wind Speed m/s TRUE W/S MS Table 1.1 - Function Menu Choices (Contd.) MENU CHOICE FUNCTION TEXT Perform Opposite Tack OPP TACK Layline LAYLINE Heel Angle HEEL Fore/Aft Trim TRIM Mast Angle MAST ANG Wind Angle to the Mast W/A MAST Bearing W/point to W/point Mag. BRG W-W M Bearing W/point to W/point True BRG W-W T Bearing to W/point Rhumb Mag.
External Barometric Pressure Trend Rudder Angle Remote 0 to 9 PR TREND RUDDER REMOTE 0 TO 9 HB-0844-04 1-12
Table 1.
Table 1.2 - Operational Menu Choice (Contd.
PART 2 - OPERATING INFORMATION CONTENTS Para Page 2.1 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.1.7 2.1.8 2.1.9 FULL FUNCTION DISPLAY (FFD) The Keys Power/Lights Key Page Key Scroll Keys Enter/Reset Key Speed/Depth (SPD/DEP) Key Wind Key (WIND) Navigation (NAV) Key Remote Button Operation 2-5 2-6 2-6 2-6 2-7 2-7 2-8 2-8 2-8 2-9 2.2 20/20 DISPLAY 2-9 2.3 SUPER HALCYON 3 AND HALCYON 2000 COMPASS 2-9 2.4 HALCYON DISPLAY 2-10 2.5 2.5.1 2.5.2 2.5.3 2.5.
2.8.1 2.8.2 Fast Reset Reset Timer 2-18 2-18 CONTENTS (Contd.) Para Page 2.8.3 Reset Trip Log 2-19 2.9 2.9.1 2.9.2 LIGHTING CONTROL Select Local Control Select System Control 2-19 2-20 2-20 2.10 OPERATING NOTES 2-20 2.11 2.11.1 2.11.2 2.11.3 2.11.4 2.11.5 2.11.6 2.11.7 2.11.8 2.11.9 2.11.10 2.11.11 2.11.12 2.11.13 2.11.14 2.11.15 2.11.16 2.11.17 2.11.18 2.11.19 2.11.20 2.11.21 2.11.22 2.11.23 2.11.24 2.11.25 2.11.
2.11.27 2.11.28 2.11.29 2.11.30 2.11.
CONTENTS (Contd.) Para 2.11.32 2.11.33 2.11.34 2.11.35 2.11.36 2.11.37 2.11.38 2.11.39 2.11.40 2.11.41 Page Tidal Set and Drift Timer Time to Layline Time to Waypoint Trip Log True Wind Angle True Wind Direction True Wind Speed Velocity Made Good (VMG) Wind Angle to the Mast 2-35 2-36 2-36 2-37 2-37 2-38 2-39 2-40 2-40 2-41 ILLUSTRATIONS Fig No 2.1 2.2 2.3 2.4 2.
Intentionally Left Blank HB-0844-04 2-5
PART 2 - OPERATING INFORMATION 2.1 FULL FUNCTION DISPLAY (FFD) The Hydra 2000 System is easily operated using the keys on any one of the NMEA or Standard Full Function Displays (FFD). Fig 2.1 - Full Function Display The information displayed on each FFD consists of a page of information comprising an upper display and a lower display. The FFD has four pages available that may be configured to display any function available in either the upper or lower displays.
2.1.1 The Keys All FFDs are provided with the following eight keys: Power/Lights Key Page Key Scroll Up Key Scroll Down Key Enter/Reset Key Speed/Depth Key Wind Key Navigation Key 2.1.2 Power/Lights Key This key controls the application of power to the system and the level of illumination at all displays. One short press of this key applies power to the Hydra System and the display is activated. A second short press of the key provides full background illumination on all system displays.
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Notes 1. If you become lost in the system, press the Page Key and you will immediately return to the top level display without doing any damage. 2. Successive operations of the Page Key will bring up each of the user defined pages in rotation. 3. The four initial pages can be reconfigured to meet your specific needs, as described in Para 2.5.2 4. Holding down the Page Key for two seconds initiates control of 20/20 displays (see Part 5 - Options). 2.1.
Expand Function Displays. When displaying the LOG and TIMER functions the Enter Key can be used to expand the display. Normally the Log function displays nautical miles to two decimal places, i.e. 99.99nm (maximum). One press of the Enter Key expands the display to 0099nm, giving a maximum available display of 9999nm if required. Similarly the TIMER function normally displays a minutes and seconds reading. Expansion by the Enter Key displays hours and minutes instead. 2.1.
Note The NAV key may be configured to show waypoint information in either Great Circle or Rhumb modes. Refer to section 2.5.3 for further details. 2.1.9 Remote Button Operation Each FFD may be provided with an optional Remote Button to allow basic control of the associated FFD from a remote position. The Remote Button has two Functions: Page Selection and Fast Reset. Page Selection is achieved by successive pressing of the Remote PushButton.
2.4 HALCYON DISPLAY The Halcyon Display is a dedicated electronic compass display that may be connected to your Hydra 2000 System in the same manner as a regular FFD. It is a large digit display providing a clear and accurate digital indication of compass heading information together with a bar graph indicating port and starboard off-course error.
At this stage we have simply called up this function to view it, if the Page Key is pressed then the configured page will return and Stored Log will no longer be on view. If however you wish to keep Stored Log on a page, then you can configure the page. 2.5.2 Page Display Configuration The Page Key allows the user to configure four pages per FFD depending on its required use at that position. To store the setting in Para 2.5.
2.5.3 NAV Key Configuration Our second example is configuring the NAV key. The NAV key allows the user to select either Rhumb Line or Great Circle navigation information to be displayed. To select the required mode, proceed as follows: (1) Press the Page Key once. (2) Press Scroll Up until the upper display shows CNFG DSP flashing. (3) Press Enter, the upper text now shows PAGE flashing. (4) Press Scroll Up to select either NAV MODE GC (Great Circle) or NAV MODE RH (Rhumb).
Damping control for any of the other functions that can be damped is achieved in a similar manner. 2.6 EXAMPLES OF CALIBRATION The calibration method of your Hydra 2000 System will be made clear by the following examples. The Calibration Process is described in detail in Part 3 Calibration. 2.6.1 Calibration Adjustment - Boat Speed (1) Using the Scroll Up or Scroll Down Keys select the upper or lower display as required.
2.6.2 Calibration Adjustment - Depth (1) Using the Scroll Up or Scroll Down Keys select the upper or lower display as required. (2) If DEPTH is shown in the upper display, press and hold the Scroll Down Key to select CALBRATE from the menu. If DEPTH is in the lower display use Scroll Up. (3) Press Enter and the display shows DATUM which flashes. (4) Press Enter again, DATUM stops flashing and the current datum value is displayed. (5) Press Enter and the DATUM value flashes.
2.7 ALARMS 2.7.1 Alarm Control When a pre-set alarm parameter is reached, e.g. the depth reducing, the system raises an alarm automatically. In an alarm condition, the lower display changes to highlight the cause of the alarm and flashes red and green alternatively until the Enter Key is pressed twice. At which point all the FFDs except the one on which Enter was pressed, return to normal. The audible alarm, if fitted, is also silenced by this operation.
For example, when the SECTOR alarm is turned on, the alarm reference heading is the current compass heading. If the SECTOR alarm is set at 40° the sector value is the compass heading +/- 20°. It is therefore important to switch OFF the SECTOR alarm before carrying out a course alteration and switching the alarm on again when settled on the new course heading. Any alarm can be switched ON and OFF individually, or all alarms can be switched OFF collectively. 2.7.
2.7.4 Switch Alarms On/Off To switch OFF an alarm (HI, LO or SECTOR), scroll through until the required item (e.g. HI OFF) appears in the text and press Enter. To turn ON an alarm, press scroll through until the required item (e.g. LO ON) appears in the upper text and press Enter. 2.7.5 Disable Alarms (1) Select any function with an alarm facility, e.g. DEPTH. (2) If function is in the top display press Scroll Down to scroll to ALARMS, or if function is on the bottom use Scroll Up Key.
The letters MS (Minutes/Seconds) and NM (Nautical Miles) mean the function is running. The letters RE stand for RESET, where the function is zeroed and waiting to be started. The letters FR stand for FROZEN, where the displayed value is frozen, but the function is still counting in the background. 2.8.1 Fast Reset The Hydra 2000 System incorporates a Fast Reset feature for all trip functions (Trip Log, Timer and Barometric Pressure Trend).
minute gun. The Timer will count down to zero and then begin to count up giving the time since the start. (5) Press the Page Key to return to the normal display. 2.8.3 Reset Trip Log (1) Display TRIP LOG in the upper display. (2) Press Scroll Down once and the lower text now shows CONTROL flashing. (3) Press Enter and use the Scroll Down key to display RESET flashing. (4) Press the Enter key and the display now shows RUN flashing. (5) Press the Enter key again and the display shows the trip log running.
(3) Press Enter again and the original page display appears. Control of the FFD Lighting is now in local mode. Successive operation of the Power/Lights Key now controls the illumination level on that display only. This will enable you to use very low lighting at the chart table whilst keeping a higher intensity display up on deck. 2.9.2 Select System Control (1) Press and hold Scroll Up or Scroll Down until LIGHTING is displayed in the text. (2) Press Enter and Scroll Up or Scroll Down to select SYSTEM.
Menu choices in plain CAPITALS are the selection of the required function. Menu choices in BOLD are the selection of the relevant operation and are completed using the other half of the display. 2.11 OPERATING FUNCTIONS The previous Paragraphs have described how the Hydra System is built up and how to use the keys and basic menu structure. The following Paragraphs describe each of the functions available in more detail and how these features can best be applied on the boat. 2.11.
A special analogue indicator, Magnified Wind Indicator, which only shows the 0-50 upwind/downwind sector of Apparent Wind Angle in a magnified form is available. This is described in Part 5 - Options. 2.11.3 Apparent Wind Speed Menu Heading: Function Text: Update Rate: Units: WIND APP W/S Twice per second Knots or metres per second Notes 1. Variable damping 0-99 seconds. 2. Audible, high/low alarm available. 3. Analogue indicator available.
Notes 1. Requires pressure sensor. 2. Offset calibration available. This is essential for the Offshore Sailor, giving not only the instantaneous barometric value but also the important trends towards higher or lower pressure. This helps position you in a weather system and so predict the next change. After installation it is essential that the calibration (CAL VAL1) of the pressure sensor is checked against an accurate barometer and adjusted accordingly.
Update Rate: Units: Once per second Volts Notes 1. Audible, high/low alarm available. 2. Calibration. This function measures the voltage that the batteries supply to the system. This is especially useful for monitoring the supply voltage offshore enabling you to optimise your engine running time.
2.11.8 Bearing to Waypoint Menu Heading: Function Text: Update Rate: Units: WAYPOINT BTW RMB or BTW GC Provided by position fixer Degrees magnetic, degrees true Notes 1. Requires interfaced position fixing system. 2. Rhumb, Great Circle, Magnetic or True. Once the position fixer is connected and sending information, it automatically appears in the menu and becomes available for display. 2.11.
The accurate calibration of the paddlewheel or sonic speed sensor is essential. Hydra uses simple procedures for calibrating the speed sensors that are described in Part 4 - Calibration. On boats fitted with two sensors, connected by a gravity switch, Hydra will automatically use the calibration factor for the leeward sensor. Boat speed is shown on the display with a small bar to the left of the digits that indicates the increase or decrease of speed. The amount of damping that is applied can be adjusted.
2.11.13 Dead Reckoning Menu Heading: Function Text: Update Rate: Units: NAVIGATE D/R CRSE or D/R DIST Once per second Degrees magnetic, nautical miles Notes 1. Course and distance. 2. Corrected for leeway if heel sensor fitted. 3. Resettable as a trip function. Formerly the mainstay of all offshore navigation, now with such widespread use of electronic position fixing equipment it is more often used as an essential back-up.
Fig. 2.
2.11.14 Depth Menu Heading: Function Text: Update Rate: Units: DEPTH DEPTH Once per second Metres, feet and fathoms Notes 1. Audible, shallow/deep alarm available: Shallow range 0-99.9m Deep range unlimited 2. Analogue indicators available. Depth is one of the most important functions on the boat, being an essential navigational and safety tool. A datum adjustment allows you to move the base point to give either depth under the keel or actual water depth (see Para 2.6.2).
Once the position fixer is connected and transmitting NMEA data, it automatically appears in the menu and is available for display.
2.11.16 Fore/Aft Trim Menu Heading: Function Text: Update Rate: Units: PERFORM TRIM Once per second Degrees Notes 1. Adjustable for horizontal sensor alignment. 2. Requires clinometer mounted fore and aft. 3. Variable damping 0 - 99 seconds. Fore and Aft trim is an often ignored factor in Boat Speed, but it is as important to trim the boat in this plane and to have a record of the trim angles for various conditions. 2.11.
2.11.18 Heading on Opposite Tack Menu Heading: Function Text: Update Rate: Units: PERFORM OPP TACK Once per second Degrees magnetic This gives the heading the vessel would be sailing when on the opposite tack with the same wind angle, and can be used in conjunction with a hand bearing compass to tell you when you are on the layline. It is calculated from Heading and True Wind angle. 2.11.19 Head Lift Trend Menu Heading: Function Text: Update Rate: Units: WIND LIFT/HDR Once per second Degrees Notes 1.
Heel Angle is a useful option that improves the accuracy of some of the calculated functions. Heel can be used to give some idea of the wind pressure when abnormal shear or gradient is affecting the True Wind Speed. It can also be checked when going upwind to ensure that the boat is not sailed over its optimum heel angle. 2.11.21 Leeway Menu Heading: Function Text: Update Rate: Units: NAVIGATE LEEWAY Once per second Degrees Note Requires clinometer for heel.
2.11.23 Local Time of Day Menu Heading: Function Text: Update Rate: Units: TIME LOC TIME HR Provided by position fixer Hours, minutes, seconds Notes 1. Requires NMEA 0183 interfaced position fixing system transmitting the ZLZ sentence. 2. Check that the Local Time Offset is entered into the position fixer correctly. The function normally shows the Local Time of Day in hours and minutes as given by the position fixer. To reveal minutes and seconds press the Enter Key once.
This is the distance in nautical miles from the current selected waypoint on your position fixer to the next waypoint on route. 2.11.26 Off Course Menu Heading: Function Text: Update Rate: Units: NAVIGATE OFF CRSE Once per second Degrees magnetic Notes 1. Requires Halcyon Display. 2. Analogue Indicator available. This function is available when a Halcyon Display is connected to the system. The amount off course is indicated on the Halcyon bar graph and shown numerically on other Hydra displays.
2.11.28 Rudder Angle Menu Heading: Function Text: Update Rate: Units: MISC RUDDER Once per second Degrees Notes 1. Requires rudder angle sensor. 2. Offset calibration available. This function is used to indicate to the Trimmers how well the boat is balanced. 2.11.29 Sea Temperature Menu Heading: Function Text: Update Rate: Units: TEMP SEA TEMP Once per second Degrees Centigrade/Fahrenheit Notes 1. Requires temperature sensor. 2. Audible high/low alarm available.
speed over ground to the speed you are doing through the water is a key tactical tool. This is particularly so in strong tidal waters and at night, when the only indication that the tide has changed and you are no longer making progress is the speed over ground. 2.11.31 Stored Log Menu Heading: Function Text: Update Rate: Units: LOG STD LOG Once per second Nautical miles The stored log runs continually, and is always available as an accumulative total of the boat's miles.
If your position fixer sends magnetic bearing, check that the variation is correctly entered into it. The calculation involves comparing the course and speed over the ground, from the position fixer, to the course and speed of the boat through the water, from dead reckoning. Any differences are due to the tidal set and drift and can be displayed as such. To make this accurate the dead reckoning really requires Leeway input and this in turn requires a heel angle sensor to measure heel angle.
Note Requires NMEA 0183 interfaced position fixing system transmitting the ZDL sentence. This function is linked to layline distance. The information displayed shows the time to go before reaching the appropriate layline. A value of zero indicates time to tack or gybe. 2.11.35 Time to Waypoint Menu Heading: Function Text: Update Rate: Units: WAYPOINT ETA WPT Provided by position fixer Hours, minutes Notes 1. Also gives ETA. 2. Requires interfaced position fixing system.
2.11.37 True Wind Angle Menu Heading: Function Text: Update Rate: Units: WIND TRUE W/A Once per second Degrees Notes 1. Relative to the boat’s heading. 2. Corrected for masthead and other errors via the Look-up Table (see Part 3 - Calibration). 3. Variable damping 0-99 seconds. The true wind is calculated from the vector triangle shown in Fig. 2.4. This uses the apparent wind speed, apparent wind angle and the Boat Speed in the calculation.
2.11.38 True Wind Direction Menu Heading: Function Text: Update Rate: Units: WIND TRUE DIR Once per second Degrees magnetic Notes 1. Wind angle relative to magnetic compass point. 2. Corrected for masthead and other errors via a Look-Up Table (see Part 3 Calibration). 3. Damping control via true wind speed. This is the tactician's greatest ally in the search for the right wind shifts. It shows the compass direction of the wind regardless of the boat's heading or speed.
2.11.40 Velocity Made Good (VMG) Menu Heading: Function Text: Update Rate: Units: SPEED VMG Once per second Knots Note Upwind and Downwind. Velocity Made Good (VMG) is calculated from the true wind angle and the Boat Speed as shown in Fig 2.5. VMG is a measure of your performance upwind and downwind and is more important than Boat Speed, since it takes into account how close you are sailing to the wind.
Fig 2.5 - Calculation of VMG 2.11.41 Wind Angle to the Mast Menu Heading: Function Text: Update Rate: Units: PERFORM W/A MAST Once per second Degrees Note Requires mast rotation sensor if a rotating mast is installed. When the mast rotation sensor is fitted, this measures the apparent wind angle to the mast's centreline, thus giving the actual angle of attack of the sail.
PART 3 - CALIBRATION CONTENTS Para Page 3.1 INTRODUCTION 3-3 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8 BOAT SPEED/LOG CALIBRATION Principle of Log Calibration Preparation for Log Calibration Calibration Runs Log AUTO CAL Facility Log AUTO CAL Procedure Manual Calibration Boat Speed Calibration (ref. to a Known Value) Boat Speed Calibration (Knots, MPH, KPH) 3-4 3-4 3-4 3-4 3-5 3-6 3-7 3-7 3-8 3.
3.6.2 True Wind Speed Calibration 3-25 3.
CONTENTS (Contd.) Para Page 3.8 BATTERY VOLTS CALIBRATION 3-26 3.9 3.9.1 SEA TEMPERATURE CALIBRATION Sea Temperature Offset Calibration 3-27 3-27 ILLUSTRATIONS Fig No 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Page Log Calibration Runs Masthead Unit Alignment Leeway Angle Measurement True Wind Direction Upwash True Wind Direction Error Depth Datum 3-5 3-10 3-20 3-22 3-23 3-24 3-26 TABLES Table No Page 3.1 3.
PART 3 - CALIBRATION 3.1 INTRODUCTION WARNING - Every care must be taken when undertaking any Calibration Procedure to ensure that the Hydra 2000 System is calibrated accurately and correctly. Incorrect calibration could lead to incorrect navigational information. Calibration of an integrated instrument system is probably one of the most misunderstood, processes in the world of yachting.
3.2 BOAT SPEED/LOG CALIBRATION 3.2.1 Principle of Log Calibration To calibrate the log it is necessary to work out the number of revolutions of a paddle-wheel, or sonic pulses per second that correspond to each knot of Boat Speed. The Boat Speed/Log calibration value is always shown as Hertz/Knot (Hz/Kt). The Hydra 2000 allows you to calibrate both a single or a dual sensor unit.
3.2.4 Log AUTO CAL Facility This facility enables the user to calibrate the yacht's log accurately and simply as all calculations are performed internally by the Main Processor. Referring to the Fig 3.1, A and B are the two markers for each run and X is the actual distance for each run as ascertained from the chart. Fig 3.
3.2.5 Log AUTO CAL Procedure (1) Select Boat Speed on the display. (2) If BOAT SPD is in Upper Display, press and hold Scroll Down to select CALBRATE. If BOAT SPD is in Lower Display, use Scroll Up to select CALBRATE. (3) Press Enter, display shows the current Boat Speed reading with AUTO CAL flashing. (4) Press Enter, display shows the current Boat Speed reading with SINGLE flashing.
(12) If a third run is required, press Scroll Down to STRT RUN then repeat from step (8). The yacht's log is now calibrated and the new calibration value is stored permanently in the computer’s memory. Note “ERR” will be displayed if the system encountered a problem during the calibration run. For example, if the calibration distance was too short. 3.2.6 Manual Calibration The calibration values can be adjusted directly as shown in 'Examples of Calibration’ included in Part 2 - Operating Information. 3.2.
3.2.8 Boat Speed Calibration (Knots, MPH, KPH) To select and calibrate the required boat speed units proceed as follows: (1) Press Scroll Up until the upper text shows LOG flashing. (2) Press Enter, the upper text now shows STD LOG flashing. (3) Press Scroll Up until the upper text shows TRIP LOG flashing. (4) Press Enter until the upper text shows TRIP LOG and the current value. (5) Press Scroll Down until the lower text shows CALBRATE flashing.
(13) Press Enter, the current boat speed will be converted to and displayed in the newly selected units. 3.3 APPARENT WIND SPEED/ANGLE CALIBRATION 3.3.1 Principles of Wind Speed/Angle Calibration Wind shear and wind gradient can be a problem when calibrating apparent Wind Speed and Angle. It is easy to see how shear can affect the Apparent Wind Angle; no sooner have you set it up than the shear changes and everything is out again. This can lead to a circular situation if you are not careful.
3.3.2 Apparent Wind Angle Calibration (AWA) To discover the AWA alignment error we can employ one of two techniques. The first is simply to go head to wind and read the value of the Apparent Wind Angle. If it reads anything other than 0, you have an error. For example, if the Apparent Wind Angle reads 4° then you should enter -4 as the calibration value. If it is less than 0 then the opposite applies. The second method involves a sailing trial as shown in Fig 3.2 - Masthead Unit Alignment. Fig 3.
(4) When conditions are again steady, write down the mean APP W/A reading. (5) Repeat steps (1) to (4) inclusive at least two or three times to obtain an average APP W/A for each tack. (6) Calculate the angle difference between the port and starboard tacks and divide the result by two to give the MHU alignment error for entry into the system. If the readings were less on port than on starboard tack, the value to be entered should be negative as denoted by the minus sign in the left of the calibration value.
3.4 COMPASS CALIBRATION 3.4.1 Principles of Compass Calibration (Super Halcyon 3, Halcyon 2000 & Halcyon Gyro Stabilised Compasses) B&G's Autoswing Compasses contain software that allows them to record the magnetic fields in the yacht that are causing the deviation errors.
3.4.2 Heading Node Selection The Hydra 2000 System can accept heading data from a variety of different sources. These different sources are known as Nodes and allow the system to identify which heading devices are connected to the system.
3.4.3 Super Halcyon 3 Compass Calibration Procedure (1) Check for any magnetic devices placed near the compass, especially ones that are out of their normal places. (2) On a calm day select a stretch of open water with little traffic, (so you will not have to take avoiding action that would ruin the calibration). The flatter the water and the less the wind the easier it will be to meet the conditions for the calibration.
3.4.4 Halcyon 2000 Calibration Procedure (1) Check for any magnetic devices placed near the compass, especially ones that are out of their normal places. (2) On a calm day select a stretch of open water with little traffic (so you will not have to take avoiding action which would ruin the calibration). The flatter the water and the less the wind the easier it will be to meet the conditions for calibration. (3) Check for any large steel structures nearby, that may cause additional, erratic deviations.
(10) Eliminate any constant error in heading. These are normally checked for by using shore-based transits, once the error is known it can be eliminated by entering the value into the Hercules under: NAVIGATE → HEADING, CALBRATE → CAL VAL1 For example, the compass was reading 320 degrees and it should read 316, then the value to enter would be -4. 3.4.
turn completed so far. Continue to turn the boat until the display shows PASS or FAIL. If you receive FAIL you must re-calibrate your compass.
Notes 1. 2. The compass calibration swing can be aborted at any time. To do this press the enter key once. Next press the scroll down key and change the value from ‘1’ to ‘0’. You can re-calibrate at any time by following the above procedures. (1) If you have any constant error in your heading, you can correct for this. Enter the value to offset your heading e.g. if your heading displays 100° and it should read 97°, then the value to enter would be –3.
SYS PASS FAIL xxxº 3.4.7 Receiving data from a B&G system compass or NMEA input to NMEA FFD or performance processor Calibration swing is complete Calibration swing failed and the compass needs to be recalibrated. Number of degrees turned during calibration swing Halcyon Processor NMEA output setup NMEA sentence output settings determine what sentences are output with respect to which heading source is available.
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3.5 HEEL ANGLE/LEEWAY CALIBRATION Calibration of Heel Angle and Leeway is only necessary if a Heel Angle Sensor is fitted to the yacht. The fitting of this sensor is highly recommended because it allows the calculation of Leeway and hence course corrected for Leeway which is used in the calculation of Dead Reckoning. 3.5.1 Heel Angle Calibration The Heel Angle Sensor should be mounted as upright as possible, to read zero when the boat is upright.
Fig 3.3 Leeway Angle Measurement The idea is to sail on a steady course and drop markers over the stern at regular intervals, the angle between them and the centreline of the yacht is measured with a hand-bearing compass and hence leeway angle is measured. Whilst this is happening the boat speed and heel angle should be noted at intervals and an average calculated.
3.5.3 Heel and Trim angle with the Halcyon Gyro Stabilised Compass. The heel and trim information from the Halcyon Gyro Stabilised Compass is displayed in the PERFORM menu. The H symbol will be placed on left indicating heel to port and on the right for heel to starboard. The display will always be shown to 1 decimal point The U symbol on the left indicates that the bow is up, while a d will be shown indicating bow down.
3.6.1 True Wind Direction Calibration Why you need to have further calibration for True Wind Direction will become clear when you go sailing. The true wind might vary in direction from tack to tack, independently of any wind shifts. This phenomenon has come to be known as the true wind “tacking”. This happens because the true wind angle that the instruments are calculating is wrong. Fig 3.
Fig 3.5 - Upwash Once the error is known, it can be entered as a correction at the current true wind speed. The aim is to build up a table of corrections similar to that shown in Table 3.1 - Example of True Wind Correction Table. Wind Angle Upwind Reaching Downwind 5 2 3 0 10 4 5 0 True Wind Speed 15 20 3 2 6 5 0 0 25 1 4 0 30 1 3 0 Table 3.1 - Example of True Wind Angle Correction Table The formatted table (Table 3.
Fig 3.6 - True Wind Direction Error Fig 3.6 is a typical situation, sailing on a port tack, upwind, in a ten knot wind, the true wind direction reads 210°. The vessel then tacks to starboard and is maintained on a steady course. The true wind direction now reads 200°. There is a 10° error tack to tack. The true wind direction should read 205° on both tacks. To correct the true wind angle so that the true wind direction reads 205° on both tacks, 5° should be added to the true wind angle.
Using Scroll Up or Scroll Down until the one required value to be corrected is found. In this example it would be "upwind, 10 knots". Having scrolled through to this, press the Enter Key. This will allow entry of the required number of degrees correction (i.e. +5). Use the Scroll Up and Scroll Down Keys to increase or decrease the value accordingly. Pressing the Enter Key sets this figure in the Hydra 2000 memory.
A typical transducer installation is through the hull at a suitable position between the water line and the bottom of the keel. A DATUM (offset value) can be set, such that the depth display refers to either the water line or the keel line. Fig 3.7 - Depth Datum The datum is entered under: DEPTH → DEPTH, CALBRATE → DATUM 3.8 BATTERY VOLTS CALIBRATION The Hydra 2000 constantly monitors the yacht's battery supply which can be called up on any display, giving a reading in volts.
If a suitable temperature sensor is fitted, the Hydra 2000 will monitor the current sea temperature. The paddle-wheel has a sensor incorporated within it, in this case no further action is required. If the sensor is a totally independent fitting (B&G Part No. 223-00-027) then it is necessary to change the sensor selection value. This value is found in: TEMP → SEA TEMP, CALBRATE → CAL VAL1 (SENSORS) The default selection value is a 1, we need to change it to a 2. 3.9.
PART 4 - INSTALLATION INFORMATION CONTENTS Para Page 4.1 INTRODUCTION 4-3 4.
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PART 4 - INSTALLATION INFORMATION 4.1 INTRODUCTION This part of the manual contains information relating to the interconnection of the units that make up the Hydra 2000 System. It is provided to enable a qualified technician to fault find or undertake the installation of additional units and thereby increase the number of functions available. The information provided consists of drawing sheets showing equipment options and the interconnections between them.
4.
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8-BUTTON NMEA FULL FUNCTION DISPLAY INSTALLATION SHEET NMEA FFD CABLE FUNCTION Network Data -ve Network Data +ve Network Cable Shield Ground Supply +ve NMEA Input Signal NMEA Input Return NMEA Output Signal Remote Control Button FFD CABLE COLOUR Green White Shield Black Red Brown Blue Violet Yellow SYSTEM NETWORK Green White Shield Black Red NMEA INPUT NMEA OUTPUT REMOTE BUTTON Shield Blue Blue Red Blue Red Red INSTALLATION NOTES • An NMEA FFD can be connected at any point on the system network.
8-BUTTON FULL FUNCTION DISPLAY WIRING DETAILS FFD CABLE FUNCTION Network Data -ve Network Data +ve Network Cable Shield Ground Supply +ve Remote Control Button Not used FFD CABLE COLOUR Green White Shield Black Red Yellow Brown SYSTEM NETWORK Green White Shield Black Red REMOTE BUTTON Blue Red INSTALLATION NOTES FOR HYDRA 2000 • The system requires at least one FFD. • An FFD can be connected at any point on the system network. • Multiple FFD's can be used on the system network.
HB-0844-04 4-20
PART 5 - OPTIONS CONTENTS Para Page 5.1 SYSTEM EXPANSION 5-3 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.2.8 5.2.9 SENSORS Trim Angle Sensor Mast Rotation Sensor Heel Angle Sensor Barometric Pressure Sensor Rudder Angle Sensor Sea Temperature Sensor Air Temperature Sensor Load Cells Sensor Input Configuration 5-3 5-3 5-3 5-3 5-3 5-3 5-4 5-4 5-4 5-4 5.3 5.3.1 5.3.2 5.3.3 ANALOGUE INDICATORS Options Available Analogue Indicator Configuration Meter Scaling 5-5 5-5 5-6 5-7 5.
5.
CONTENTS (Contd.) Para 5.9 5.9.1 5.9.2 5.9.3 5.9.4 5.9.5 5.9.6 5.9.7 5.9.8 5.9.9 5.9.10 HALCYON DISPLAY The Keys Power/Lights Key Page Key Off Course Function Stored Course Function Head/Lift Trend Function Set-up Port and Starboard References Head Lift Trend - FFD Head/Lift Trend - 20/20 Display Turn Rate Function Page 5-14 5-15 5-15 5-15 5-16 5-16 5-17 5-18 5-18 5-18 5-18 5.10 5.10.1 5.10.2 5.10.3 5.10.
PART 5 - OPTIONS 5.1 SYSTEM EXPANSION The Hydra 2000 System may be expanded to provide a wider range of facilities and features by the addition of further displays, sensors, and interfaces. These Options are described in the following Paragraphs. 5.2 SENSORS There are four linear inputs into the Main Processor which enable further sensors to be connected. In addition, the Expansion Unit which has 12 extra inputs is also available. 5.2.
5.2.6 Sea Temperature Sensor Measures the sea water temperature. 5.2.7 Air Temperature Sensor Measures local air temperature. 5.2.8 Load Cells Facility is also provided for the input of load cell data. The load cells should provide an output of 0-6.5 volts. 5.2.9 Sensor Input Configuration Additional sensors can be added to the system by connecting to one of the four linear inputs on the Main Processor or the additional inputs on the Expansion Unit. These can be configured to take different sensors.
6 = Barometric Pressure Sensor 7 = Rudder Angle Sensor Note Do not select the same number on more than one linear input, otherwise the selection will be ignored (no function can be connected to more than one input). 5.3. ANALOGUE INDICATORS 5.3.1 Options Available Type of Indicator Boat Speed Boat Speed Boat Speed Wind Speed Wind Speed Wind Direction Magnified Wind Direction Head/Lift Trend* Depth Depth Compass Card Cross Track Error (XTE) Off Course* Heel Angle Rudder Angle Scale 0 to 12.
Items marked with an asterisk are only available with the Halcyon Display.
5.3.2 Analogue Indicator Configuration If meters other than the defaults are chosen then it is necessary to reconfigure the outputs. This is done from any FFD as follows: (1) Power up the system from any FFD while holding down the Enter Key, DIAGNOST appears. (2) Press Scroll Up, CNFG SYS appears, press Enter to select this option. Now press Enter again to select the METERS option. (3) With OPTIONS flashing, press Enter, METER 1 appears, the Scroll Up Key is now used to scroll through the meter outputs.
5.3.3 Meter Scaling Meter scaling can also be varied for boat speed and wind speed. For example if a 25 knot full scale Boat Speed Meter is required, this can be done as follows: (1) Follow steps (1) and (2) as detailed in Para 5.3.3. (2) With OPTIONS flashing, press Scroll Up to reveal SCALING and press Enter, BOAT SPD will appear. A further press of Enter will reveal the current maximum meter scale value for the Boat Speed Meter. (3) To change this (e.g.
5.6 20/20 DISPLAY 5.6.1 The Display The 20/20 is a fully programmable, single function, large digit, display which may be installed anywhere in the yacht. Fig 5.1 - 20/20 Display 5.6.2 Display Configuration The 20/20 may be configured to display any function available on your Hydra 2000 System. It is however provided with 14 pre-set functions which may be selected by use of a Remote Button connected to the display or via any FFD on the system.
Functions marked with an * are NMEA Functions and are available only when a suitable Position Fixer is interfaced with the system.
5.6.3 Function Selection - Remote Push-Button If a Remote Button is connected to a 20/20 Display any one of the 14 preset functions may be selected by pressing and holding down the associated Button. The Display will then cycle through the functions. When the required function is displayed, release the Button. If the Button is held down too long and the required function is missed, press and hold down the Button again. The Display will then cycle though the functions in reverse order.
5.6.5 Re-configuring 20/20 Display In addition to the 14 pre-set functions, any one of the 20/20 Displays may be re-configured to show any other function available to the system. This feature allows any 20/20 to be set-up to show the information most useful to the user at that station in the yacht. The procedure for re-configuring a 20/20 function is as follows: (1) At the FFD, press and hold down the Page Key for at least 3 seconds.
5.7 5.7.1 40/40 DISPLAY The Display The 40/40 is a fully programmable, single function, large digit, display which may be installed anywhere in the yacht. Fig 5.3 - 40/40 Display 5.7.2 Display Configuration The 40/40 may be configured to repeat any function (except latitude/longitude) available on your Hercules 2000 System. It is however provided with 14 pre-set functions that may be selected by use of a remote push-button connected to the display or via any FFD on the system.
5.7.3 Function Selection - Remote Push-Button If a remote push-button is connected to a 40/40 display any one of the 14 pre-set functions may be selected by pressing and holding down the associated button. The display will then cycle through the functions. When the required function is displayed, release the button. If the button is held down too long and the required function is missed, press and hold down the button again. The display will then cycle through the functions in reverse order.
5.7.5 Re-configuring the 40/40 Display In addition to the 14 pre-set functions, any 40/40 pre-set function may be reconfigured to show any other function available to the system. This feature allows any 40/40 to be set-up to show the information most useful to the user at that station in the yacht. The procedure for re-configuring a 40/40 function is as follows: (1) At the FFD, press and hold down the Page Key for at least 3 seconds.
5.8 HALCYON 2000 COMPASS The Halcyon 2000 Compass is a high performance electronic transmitting compass connected to your Hydra 2000. Heading information may be selected for display on any of the FFDs or on a Halcyon Display. Moving card type analogue indicators are available as an option. The Halcyon 2000 software allows the compass to compensate for the magnetic fields in the vessel that may cause deviation errors.
Fig 5.3 - Halcyon Display 5.9.1 The Keys The Halcyon Display is provided with the following five keys: Power/Lights Key Page Key Scroll Up Key Scroll Down Key Enter Key 5.9.2 Power/Lights Key The Power/Lights Key is operated in an identical manner to the Power/Lights Keys provided on the FFDs, see Part 2 - Operating Information. 5.9.
5.9.4 Off Course Function The Off Course function provides the helmsman with accurate Off Course information to assist in steering a steady and accurate course. Off Course is calculated by comparing the yacht’s current heading with a previously set reference heading. The deviation is shown by the bar graph and numerically as degrees port or starboard. The bar graph scale shows one segment for every 2° off course up to 10°, then one segment for every 5° up 20°.
(4) Press the Enter Key to enter the selected course as the reference. To change the value of any stored course proceed as follows: (1) Select the Stored Course Function by successive presses of the Page Key until the display changes to show the Stored Course Function. (2) Press the Scroll Down Key and the stored value of the course selected will flash. (3) Using the Scroll Up and Scroll Down Keys change the value to the new course. (4) Press the Enter Key to enter the new course. 5.9.
5.9.7 Set-up Port and Starboard References In this application the Halcyon Display will always know whether the current tack is port or starboard since it is linked to your Hydra 2000 System. PORT or STARB will be indicated on the display. To set-up the port reference, sail the vessel on port tack until the current heading is giving the optimum upwind performance relevant to the current mean wind angle. Press the Enter Key (or Remote Button if fitted) and the port reference is now set.
When MEAN is selected, the present heading is compared with a continually updated mean heading and displayed graphically and numerically as degrees to port or starboard. This will give the trend to right or left of the average heading. Hence, if the heading fluctuates to port and starboard but with a bias to port, then the net trend to port will be displayed. Similarly for starboard.
5.10.2 Linear Function Settings Altering calibration value 1 (CAL VAL 1) allows the correct input sensor to be selected. The different inputs available are shown below: 1 or 2 3 4 5 6 7 8 normal linear input 0 to 1000 rotating mast correction for apparent wind angle heel angle trim angle barometric pressure rudder angle air temperature The default factory setting for a linear input is 1 (0-1000 format).
Notes 1. When calibration value 1 is changed to select a desired input sensor, the linear value is no longer updated and a constant value is displayed until the page key is pressed. 2. Extra functions selected, and then removed, remain in the display menu but with no data shown until the system is switched off and then back on again. 3. Linear functions will always be shown if selected by CAL VAL 4 on linear 5. They will show no data if the CAL VAL 1 setting is configured to 1 or 2. 5.9.
TERMINAL 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 FUNCTION Linear 5 Input Linear 6 Input Linear 7 Input Linear 8 Input Linear 9 Input N/C N/C N/C N/C N/C N/C N/C N/C N/C Linear 10 Input N/C Linear 11 Input Linear 12 Input +12V Switched Supply Linear 13 Input +6.
PART 6 - DIAGNOSTIC DATA CONTENTS Para Page 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 6.1.7 6.1.8 6.1.9 6.1.10 6.1.11 6.1.12 6.1.13 FFD DIAGNOSTICS Diagnostic Function Selection Key Test Display Network RAM PROM EEPROM Lighting Debug RES-SYS Versions Errors Remote 6-3 6-3 6-4 6-4 6-4 6-4 6-5 6-5 6-5 6-5 6-5 6-6 6-6 6-6 6.2 6.2.1 MAIN PROCESSOR Masthead Unit 6-7 6-7 6.3 6.3.1 6.3.2 6.3.3 6.3.
6.6.2 6.6.
PART 6 - DIAGNOSTIC DATA 6.1 FFD DIAGNOSTICS The FFD contains a number of diagnostic functions. These allow the FFDs own keys, display and memory to be tested and also perform some checks on other parts of the system via the network. One of the more useful of these tests enables the user to determine the software version numbers of the Processor Units in the system. This information will often be useful when liaising with service agents. 6.1.
6.1.2 Key Test The display requests the user to press each key in turn as follows: Key 1 Key 2 Key 3 Key 4 Key 5 Key 6 Key 7 Key 8 Enter Scroll Down Scroll Up Page Power/Lights Navigation Wind Speed/Depth If it does not detect the key being pressed in a short time then the message TIME OUT is displayed. 6.1.3 Display The Scroll Up Key can be used to step the display through a sequence that puts on single segments in all characters, blanks the display and turns on all segments.
6.1.6 PROM This tests the correct operation of the FFD's program memory and calculates its checksum by adding all the individual bytes of memory together. The total is displayed in hexadecimal in the bottom half of the display and the last two digits are the software version number. If this test fails then if possible, FATAL ER 02 is displayed, and further operation of the FFD cannot be accurately defined. The upper half of the display shows the FFD's network node number. 6.1.
Note When the system is reset all calibration, damping and alarm values will be set back to default settings, all log values and trip functions will be reset to zero. All display units will reset to their default page settings. After a delay of about 20 seconds the system should be switched OFF and then back ON twice to complete the reset procedure. 6.1.
10 seconds then it can be assumed the node being tested is not in the system. The REMOTE tests for the currently selected node can be exited by holding Enter down and pressing the Power/Lights Key. 6.2 MAIN PROCESSOR The main processor contains two circuit boards: the wind board and the depth board. The depth board is responsible for boat speed, sea temperature and depth measurement. The wind board is the main sensor responsible for wind functions and also drives the analogue meters.
6.3 DEPTH SOUNDER Fault finding on the depth sounder is often difficult as depth sounder performance is dependent on many factors: transducer type and installation, boat speed, electrical noise, sea state, sea bed conditions, air and plankton in the water. Indications of problems with the depth sounder normally manifest themselves in one of three ways: (a) display shows (Floating Bars) - (b) display locks down showing depths in the range 0 to 1.
(d) The transducer is faulty or has been damaged. The transducer should be checked for any damage, barnacle growth or thick layers of paint. If it needs cleaning this should be done with a scrubbing brush. The face of the transducer may have a thin coat of antifouling applied to it making sure no air bubbles are trapped in the paint. The cable should be checked for damage. The resistance between the orange/green cores should be in the region of 0.
reliable soundings can be made when traveling in a straight line. Then repeat the tests when turning to port and starboard. If better results can be obtained when turning it is possible that there is something in front of the transducer causing aeration. This may be a hull fitting like a water outlet in which case the transducer or the hull fitting should be moved. If there seems little difference whether turning or not, the position of the transducer should be reviewed.
(c) Following or crossing the path of another vessel which has left an aerated layer in the water. 6.3.4 Random Deep Depths Symptom: Display shows random deep depths. Possible Causes: (a) Electrical noise. The depth sounder contains circuits and software to reduce its susceptibility to electrical noise, however this can still be a problem if not installed carefully or other equipment is not correctly suppressed.
6.4 ERROR MESSAGES 6.4.1 Error Messages Following is a list of error messages output on the displays. Er01 Error detected reading the analogue to digital converter on the depth sounder board. This can be an indication of a fault on the board or that the sea water temperature or the compass signals are outside their normal range. Try disconnecting the sensors in turn. Er02 Error detected when writing to the analogue to digital converter on the depth sounder board.
6.5 HALCYON 2000 COMPASS 6.5.1 Shows Heading and CAL Flashing Symptom: Display flashes a Heading and CAL Possible Causes: (a) The memory in the Halcyon 2000 is empty or has been corrupted. This may be due to a System Reset being performed or the first time the compass has been installed and not yet been calibrated. Perform a calibration swing to restore normal operation. (b) After a calibration swing the result is always FAIL. There is a source of magnetic deviation near to the Halcyon 2000 compass.
6.5.4 Two Headings Flashing Alternately Symptom: Pilot or Halcyon Displays shows two headings flashing alternately Possible Cause: The Pilot has not been set to use the Halcyon 2000 as its heading source. Pilot Heading Node must be set to Node 16. If the Halcyon 2000 is not to be the source of heading then it must be unplugged from the network. 6.5.
6.6 NMEA Alphabetical Index Hydra 2000 6.6.1 NMEA Input Summary APA APB BEC Autopilot Format A Autopilot Format B Bearing and Distance to Waypoint, Great Circle, dead reckoned Brg. and Distance to W/point, Rhumb, dead reckoned Brg. to destination Waypoint from origin W/point Brg. and distance to Waypoint, Great Circle measured Brg. and distance to Waypoint, Rhumb measured Bearing to Waypoint from Waypoint Global Positioning System Fix Data Latitude and Longitude (versions 1.5 and 2.
2. Displayed when no B&G fluxgate connected to system. Can be used by Autopilot. 3. Re-transmitted only. Not used by Hydra 2000.
6.6.
NMEA Sentences The following diagrams show the structure of the various NMEA sentences.
3 Bearing and distance to waypoint, great circle, dead reckoned (BEC) 4 (BER) Bearing and distance to waypoint, rhumb, dead reckoned HB-0844-04 6-19
5 Bearing to destination waypoint from origin waypoint, true or magnetic (BOD) 6 Bearing and distance to waypoint, great circle, (BWC) measured HB-0844-04 6-20
7 Bearing and distance to waypoint, rhumb line, (BWR) measured 8 Bearing to waypoint from waypoint, true and (BWW) magnetic HB-0844-04 6-21
9 Depth of water below transducer (DBT) 10 Global positioning fix data (GGA) HB-0844-04 6-22
11 Present fix position (GLL) 12 Present position fix, Loran - C (GLP) HB-0844-04 6-23
13 Present heading magnetic (HDM) 14 Heading degrees, true (HDT) 15 Air temperature, Celsius (MTA) 16 Water temperature (MTW) HB-0844-04 6-24
17 Surface wind, direction and velocity (MWD) 18 Wind speed and angle (MWV) HB-0844-04 6-25
19 Recommended minimum implementation sentence, C (RMA) 20 Loran - Recommended minimum implementation sentence, navigation information (RMB) HB-0844-04 6-26
21 Recommended minimum implementation sentence, transit specific (GPS) (RMC) 22 Water speed and heading (VHW) 23 Water referenced log mileage (VLW) GPS or HB-0844-04 6-27
24 Device measured velocity parallel true wind (VPW) 25 Actual track and ground speed (VTG) 26 Wind relative bearing and velocity (VWR) HB-0844-04 6-28
27 True wind relative bearing and velocity (VWT) 28 Waypoint closure velocity (WCV) 29 Distance to waypoint, great circle (WDC) HB-0844-04 6-29
30 Distance to waypoint, Rhumb (WDR) 31 Measured cross track error (XTE) 32 Dead reckoned cross track error (XTR) HB-0844-04 6-30
33 Time and distance to layline (ZDL) 34 Time of day (ZLZ) 35 Time to waypoint (ZTG) HB-0844-04 6-31
A1 HYDRA 2000 CALIBRATION DATA A1.1 True Wind Speed Correction Table Wind Angle 5 True Wind Speed 10 15 20 25 30 Correction at 180°° A1.2 True Wind Angle Correction Table Wind Angle 5 True Wind Speed 10 15 20 25 30 Upwind Reaching Downwind A1.
Hydra 2000 Settings Chart Continued Function Calibration Type / Unit Calibratio n Value Dampin g Value Alarm Datum Offset m, ft or fms High HEADING Alignment° Sector HEEL Alignment° LEEWAY Alignment° MAST ANG Alignment° RUDDER Alignment° DEPTH Alarm Value Low Sensor Type High Offset Temp (°C or °F) Alignment° Low SEA TEMP TRIM TIDE SET TRUE W/A TRUE W/S VOLTS Magnetic Variation Correction° Correction Kts Supply Voltage See A1.2 See A1.
