OPERATION and INSTALLATIONMANUAL

WESTERN MARINE ELECTRONICS14120 NE 200th Street, PO Box 7201

Woodinville, WA 98072-4001 USATelephone: (425) 481-2296 Fax: (425) 486-0909

dsoderberg@wesmar.com www.wesmar.com

August 2013

HD825 Series Sonar

2 WESMAR

Contents

INTRODUCTION ............................................................................................................................................................................ 5 Theory of Operation ............................................................................................................................................................ 5 Scanning Sonars Versus Echo Sounders ................................................................................................................... 5OPERATION ................................................................................................................................................................................... 7 User Interface ......................................................................................................................................................................... 7 Power-On and Self-Test (POST) ................................................................................................................................... 8 Software Menus and Control ........................................................................................................................................ 10 Basic Operation (the main WESMAR 825 Screen) ........................................................................................... 10 Screen #1: Single screen . .................................................................................................................................................. 11 Screen #2: Split screen ...................................................................................................................................................... 11 Screen #3: Linear Scan and Profiler ............................................................................................................................12 Screen #4: Full-screen down sounder ......................................................................................................................12 Main HD825 Menu Bar ......................................................................................................................................................13 Sonar and Profiler Configuration (SONAR and PROFILE) .............................................................................15SCANNING SONAR TECHNIQUES ......................................................................................................................................21WHEELHOUSE EQUIPMENT ...............................................................................................................................................23 Console.....................................................................................................................................................................................23 Computer Control Unit .....................................................................................................................................................23 Power Supply Unit ..............................................................................................................................................................23 Transmit/Hoist Box ...........................................................................................................................................................23 Monitor (Customer Supplied) .......................................................................................................................................23SEACHEST INSTALLATION ....................................................................................................................................................25 How much room is needed? ..........................................................................................................................................25 Seachest Location ............................................................................................................................................................. 26 Seachest Specifications ...................................................................................................................................................27ELECTRIC HOIST INSTALLATION .....................................................................................................................................27 Calculate Length of Soundome Tube ....................................................................................................................27 Check soundome clearance inside seachest .........................................................................................................28 Fasten the soundome to the soundome tube ......................................................................................................28 Assemble Hoist.................................................................................................................................................................... 29 Attach Hoist to Seachest................................................................................................................................................ 29WIRING ........................................................................................................................................................................................... 30 Check hoist travel distance ........................................................................................................................................... 30 Packing Gland ...................................................................................................................................................................... 30HYDRAULIC HOIST INSTALLATION ...................................................................................................................................31 Install the soundome ..........................................................................................................................................................31INSTALLATION .............................................................................................................................................................................32 Install hoist assembly on seachest ............................................................................................................................32 Install hydraulic power pack .........................................................................................................................................33WIRING, DC HYDRAULIC HOIST ....................................................................................................................................... 34 DC hoist board wiring ...................................................................................................................................................... 34WIRING, AC HYDRAULIC HOIST ...................................................................................................................................... 36 AC hoist board wiring ...................................................................................................................................................... 36OPERATION CHECK, HYDRAULIC HOIST, DC & AC ................................................................................................37 Lowering hoist first time ..................................................................................................................................................37 Check hoist soundome travel ....................................................................................................................................... 38 Packing Gland ...................................................................................................................................................................... 38HYDRAULIC HOIST TROUBLESHOOTING .................................................................................................................. 39HYDRAULIC MAINTENANCE ...............................................................................................................................................41

3 WESMAR

HD825 Sonar Controls

ON/OFF

REVERSE SCANFor tracking fish CHANGE

SECTOR SIZE

CURSOR FOR MARKING FISH AND FOR MENUSELECTION

CHANGE RANGES

TILT TRANSDUCER

SOUND HOIST

SCREEN SELECTIONThere are four selection screens where adjustments are made. Each adjust-ment can be viewed as the sonar runs to maximize target detection. The four selection screens are: Local, Sonar, Profiler ( ), and Color. Push enter to get into screen. Use the cursor buttons to change selection.

BEARING LINE TO MOVE DIRECTION OF SONAR SCAN

4 WESMAR

5 WESMAR

INTRODUCTION

Theory of Operation

Searchlight scanning sonar have many applications in commercial fishing, passenger ship navigation, subsea construction, diving and salvage and underwater security. Sonar equipment transmits sound underwater to locate objects such as fish schools, debris and dangerous reefs. In the soundome (the part of the sonar equipment that extends through the bottom of the vessel), a transducer sends a sound wave pulse through the water. When that pulse strikes and object, it bounces back and returns to the transducer, which “hears” the returning energy. When the transducer “hears” a returning sound wave, it converts that energy into an electrical current, which is ultimately represented on a VGA monitor based on its return angle and signal strength. Sonar returns are presented with a color palette that assigns various colors to signal strength. For example, red to strong returns and blue to weak. A red target on the screen means that the return echo was very strong and that the sound wave reflected from a firm object. Dark blue or black indicates clear water – no return.

Obviously, rocks return a stronger signal to the transducer than a mud bottom or fish. Fish will return a signal to the sonar, but unless there are many fish together, the echo will be weak. With experience, a sonar operator is able to distinguish different types of targets (bottom typing, bait schools, etc.) based on their representation on the screen.

Scanning Sonars Versus Echo Sounders

Traditional depth sounders have fixed transducers that cannot be moved. They face straight down to

Searchlight Sonar compared to Traditional Echo Sounder Operation

Non movable beam

Movable sonr beam

6 WESMAR

the bottom, transmitting sound waves in a wide, cone-shaped pattern. Like an electronic “lead line”, the sound waves can only determine depth directly below the boat.

To locate underwater objects (fish, wrecks, rocks etc) with a depth sounder, you must cruise back and forth through the water until you pass over an object. In challenging locations, this is not an option for a passenger vessel. Similarly, for commercial fishing vessels, operators want to locate fish or fish-bearing bottom structures quickly to minimize time at sea, thereby maximizing safety and improving profitability. WESMAR’s approach is to utilize scanning searchlight sonar technology. The WESMAR 825 precision searchlight sonars are designed for high-performance, reliability and ease of use.

Unlike a traditional echo sounder, scanning sonar does much more than indicate depth directly below the ship. It provides information on distance, depth and bearing of objects all around your vessel. The transducer acts much like an underwater searchlight, turning up to a full 360 degree circle in a conical beam. The transducer can be tilted up and down also, from +4 degrees above horizontal, to 90 degrees to profile directly below. It is the narrow, moveable beam that enables the WESMAR scanning sonar to be used successfully in shallow water.

NOTE: THE USE OF SONAR FOR NAVIGATION SHOULD ONLY BE RELIED UPON BY AN EXPERIENCED OPERATOR IN CONJUNCTION WITH OTHER NAVIGATIONAL AIDS.

7 WESMAR

OPERATION The best way to become proficient with your Sonar is to use it often. The more you work with it, the more valuable it will be as a navigation or fish-finding aid. Don’t be afraid to experiment with the controls.. The WESMAR 825-series Sonars are being used today for the following applications, with more to come in the future:

1. Location of large compact schools of midwater fish, such as herring, sardine, mackerel and tuna, in deep water.

2. Location of large compact schools, such as pollock, in shallow water with a smooth, soft seabed.

3. Location of scattered schools of mid-water fish such as herring, mackerel and large individual fish like salmon, albacore tuna and blue marlin in deep water.

4. Detection of rocks, reefs or other bottom structure for bottom trawlers, red snapper fishermen, research vessels and salvage operators.

5. Detection of collision and grounding hazards, including shelves, reefs, icebergs by yachts, expedition vessels and cruise ships.

User Interface The 825-series Sonar is configured and operated via a software user interface, which can be navigated using the bulkhead-mounted Panel Control.

The control devices plug into the Sonar’s wheelhouse PC control box and require panel cut-outs close to the Sonar screen.

8 WESMAR

Power-On and Self-Test (POST)

Turn the Sonar ON. No lights on the control panel will light. The Sonar will enter its POST mode with the following display on your screen:

a. Software (console) Release. This is the software revision in the computer control unit.

b. Hardware (console): This is the serial number of the microprocessor in the computer control unit.

c. Soundome (remote) Ensure that this is the correct frequency and size of the soundome that has been installed on the hoist.

d. SETTINGS: The word SETTINGS will display in green. This test checks computer memory and all the sonar settings from the last time the Sonar was in operation. e. PROGRAM: When the Sonar program is running without complications the word “PROGRAM” will display in green.

f. LINK: When the computer control unit in the wheelhouse communicates with the transmitter/receiver unit (near the hoist assembly) via the Interconnect Cable, then the word “LINK” will turn green.

g. SCAN: Every time the sonar is turned on the soundome must locate zero degrees. When zero degrees is located, the word “SCAN” will turn green.

9 WESMAR

HD825 SONAR CONTROLS

ON/OFF

REVERSE SCANFor tracking fish CHANGE

SECTOR SIZE

CURSOR FOR MARKING FISH AND FOR MENUSELECTION

CHANGE RANGES

TILT TRANSDUCER

SOUND HOIST

BEARING LINE TO MOVE DIRECTION OF SONAR SCAN

There are four selection screens where adjustments are made. Each adjustment can be viewed as the sonar runs. To maximize target detection. The four selection screens are: LOCAL, SO-NAR, PROFILER (↓↓↓), and COLOR. Use ENTER to get into the screen. Use the CURSOR buttons to change selections.

10 WESMAR

Software Menus and Control

The Sonar’s user interface is navigated by the Control Panel. The Main Menu (titled “HD 825”) of the 825-series displays the current Sonar targets and a vertical Menu bar to the right that includes the primary “controls” for the system: Range, Tilt, Center (Bearing), Reverse, Thickness, Sector, Speed, Zoom, Screen, Set Up, and Gains (Near/Far).

To adjust the sonar for the application push the enter button on the control panel. A menu item will light in green. Use the up/down cursor buttons to scroll from one item to another. Use the right/left cursor buttons to make selection. Pushing the ENTER button a second time will remove the green highlight from menu. When the green highlight is removed from menu the cursor buttons will then control the cursor square on the sonar screen. Moving the cursor square over a target will give horizontal range to and depth of the target. Range and depth to target will be displayed below the threshold color bar in the menu bar.

The Sonar is configured by clicking on the main menu item “SET UP”. Configuration settings are grouped by: Sonar, Profile, Color and Local.

Basic Operation (the main WESMAR 825 Screen)

SCREEN There are 4 screen selections that can be accessed by clicking on the “SCREEN” menu item: Screen 1: Full-screen: 360 degree Sonar view Screen 2: Split-screen: Sonar with simultaneous bottom profiling (very popular for trawling applications)

Main Menu Bar

Screen 3: Split-screen Sonar Linear: In linear sonar presentation the sweep starts at the left and moves to the right. Range is measured vertically, bearing along the horizontal.

Screen 4: Full-screen down sounder. This stabilized sounder mode can also be used when the soundome is retracted.

11 WESMAR

Screen #1: Full-screen sonar

Screen #2: Split screen sonar and profiler

HD825 Sonar operating as horizontal scanning sonar

HD825 Sonar operating as a horizontal scanning sonar and bottom profiler

Screen #1: Single screen - Sonar scanning forward with adjustable tilt.

The HD825 series sonar enables multiple views around and beneath the vessel.

Screen #2: Split screen - Sonar scanning forward with adjustable tilt and simultaneous bottom profiling.

12 WESMAR

Screen #3: Profile - Linear Sonar

Screen #4: Full-screen down sounder is available even when the soundome is fully retracted.

Screen #4: Full-Screen Stabilized Down Sounder

In Video -Sounder mode with transducer stabilized. Can be operated when

soundome is fully retracted.

Screen #3: Linear Scan and Profiler, commercial fishing view.

In Profile - Linear Sonar mode the top half of the screen is a linear display similar to a down sounder as opposed to the traditional half circle or arc of a scanning sonar. In this mode captains can spot fish and other targets close to the bottom in a display similar to a down sounder. The sonar presentation starts at the left and moves to the right. Range is measured vertically, bearing along the horizontal. When scanning for targets the bottom will mark horizontally across the screen and not a half circle.

13 WESMAR

Main HD825 Menu Bar

RANGE

Sets the distance that is covered on the display screen. There are 2 selections, one for Sonar and another for Profile. Range can be set in units of feet, fathoms or meters.

TILT This configures the scanning angle of the transducer below horizontal (0 degrees). Minus 90 degrees tilt is straight down. Positive tilt is above the horizontal. For Navigation applications, it will be typical to set TILT to 0 degrees, and perhaps lower several degrees to eliminate interference from wave action. Scanning Bearing and Sector is fully adjustable

CENTER (or Bearing) This marks the center of the scanning sector. Center can be moved in nine-degree steps around the screen. It is normally set to zero degrees when scanning forward. SECTOR This sets the number of degrees scanned. There are 2 sector selections, one for Sonar and the other for Profile. ZOOM Zoom is used as a magnifier. Move the cursor over the target and pull the remote handheld trigger or push the button on the panel control. The enlarged target will display in the lower right of the screen. Pull the trigger or push the button again to disable the function. SPEED This setting controls the scanning speed of the transducer, based on the desired range and the speed of sound in salt water. Use the slowest speed 1 for the highest resolution of small targets. Each “speed” is equal to 1.8 degrees of transducer rotation. For example, Speed 4 rotates 7.2 degrees (1.8 x 4) per “ping”.

Scanning Bearing and Sector are fully adjustable.

14 WESMAR

Speed may be configured independently for Sonar and Profile. Adjust the speed for best target presentation. The speed can also be increased by selecting a smaller sector size. SET UP This menu item selects specific Sonar, Profile, Color and Local menus where detailed system adjustments can be configured. THICKNESS (Only in Screen #1 or #2) This command directs the sonar to scan a vertical slice through the current bearing, providing additional information on the vertical distribution of a mark, whether a school of fish or an underwater structure.

Wait for the horizontal scan to reach the desired mark. Push the button on the bulkhead console after highlighting the Thickness menu item. The transducer will start to scan in the vertical, up and down. The targets will display in the lower right quadrant of the screen. The vertical scan can be moved to port or starboard by manipulating the joystick control, and is terminated by pushing the control button twice. GAINS (NEAR and FAR) Near Gain controls the complete gain curve and has its greatest affect on targets displayed in the first half of the sonar range. Far Gain controls the height of the gain curve and has its greatest affect on targets displayed in the last half of the sonar range. When both Near and Far Gains are adjusted correctly, targets at long range will not change in density as the vessel approaches. Also, target density will remain constant from one range to another. Gain settings can be adjusted for all conditions the operator will encounter, ensuring accurate target presentation. Gain settings can be adjusted independently for both Sonar and Profile modes.

15 WESMAR

Sonar and Profiler Configuration (SONAR and PROFILE) PULSE At the beginning of each Transmit/Receive cycle the transmitter turns on and off in a brief period of time called the Pulse Length, and is measured in milliseconds (1/1000th of a second). Pulse Length is equal to 1.5m/ms. The Pulse Width can be manually adjusted depending on the acoustic environment and target characteristics. For example, a shorter pulse will give better target definition and reduce volume reverberation when looking for dispersed or small targets in the water column. A long pulse may be used when seeking out large targets at long ranges. Pulse length can be selected from BOOST (longest) to 3% (shortest). NOTE: A Zero pulse length will turn the transmitter OFF, which is useful for eliminating sources of interference. The WESMAR sonar displays targets on a VGA monitor with a resolution of 640 (horizontal) x 480 (vertical) pixels. The vessel location is in the center of the screen giving a monitor resolution of 240 pixels, which defines the sonar’s range resolution. For example, at a 100m range, the monitor resolution of 240 pixels represents 42cm per pixel.

To see fish closer to the bottom and to mark shallow depressions you can shorten your pulse length to increase range resolution, but be aware of the limitations of monitor resolution.

16 WESMAR

ENHANCE This is a filter that enables a stronger display of weaker targets. Normally set to 1. LIMITER This is useful to reduce external interference, such as acoustic interference from other sonar/sounder equipment onboard, and electrical interference from power supplies and cabling. Under normal conditions, Limiter is set to OFF. Selecting Limiter #1 creates a requirement that a sonar target must be present in two adjacent transmits at the same range. Selecting Limiter #2 requires that three consecutive target samples are received and the lowest sample will be displayed. Both #1 and #2 can be selected to further reduce noise. CAUTION: Activating Limiter will remove smaller targets. The Limiter setting can be adjusted independently for both Sonar and Profile.

FILTER This setting will eliminate weak targets and light noise from the screen. You can think of this setting as adjusting contrast. Filter is initially set to OFF and configured for specific applications: Filter OFF & 1: Dispersed fish and fish close to the bottom:

The OFF and 1 setting displays targets as they are actually received. For small targets, prawns, dispersed fish and small single fish, these setting are important. Low target filters are used to mark fish close to the bottom in the profile mode. Filter 2 & 3: Small schools of fish, fish close to the bottom:

As we increase Filter, target averaging is increased. Pilings will mark more solidly in red. Small schools of fish will fill in. Reefs, rocks and hard bottom are displayed more vividly.

17 WESMAR

Filter 3 & 4: Large schools of fish:

Large schools of fish are marked without having to increase gains, which could cause additional noise. This is a good setting to use when determining the size of schools. It is also good for navigation.

Filter 5 & 6: Bottom typing only: This filter takes the signal return and paints targets in watercolor display for bottom-typing. For this filter, we recommend configuring Threshold Type 1 and 16 colors. TVG (or Time-Variable Gain) The TVG (Time-Variable Gain) setting adjusts the receiver gain based on Sonar range, to offset the propagation loss of sound as it passes through the water. Propagation Loss of sound is the sum of Spreading and Attenuation Losses. Spreading Loss refers to the physical spreading of sound energy as it travels outward from the source and back from the target. Attenuation Losses are primarily due to absorption and the scattering of sound as it passes through the water. Automatically adjusts receiver gain based on Sonar range. As sound travels through water, it loses strength due to propagation losses (attenuation). This makes distant objects seem weaker. As targets approach they appear stronger and stronger. To offset propagation losses the sonar gradually increases sensitivity or gain relative to range. With the correct TVG setting, targets at long range will have the same color as they approach. TVG numbers change with frequency and water temperature. Warmer waters support more plankton and plant life that absorb sound energy. TVG can be configured separately for Sonar and Profile. A Zero TVG will not adjust gain based on sonar range. Zero TVG is used when checking boat noise levels.

18 WESMAR

TVG Adjustments:

160kHz set TVG to 400, span 200 to 600

110kHz set TVG to 600, span 400 to 800

60kHz set TVG to 800, span 600 to 1000

POWER This setting adjusts the output power of the transmitter. Use 100% power for long range. Low power is useful in shallow water and conditions where there is a lot of plankton or algae suspended in the water column. Color Configuration (COLOR Screens)

THRESH (or Threshold) Selections range from 1 to 6. Strong targets mark in red, yellow or orange. Weaker targets mark in green and blue. Thresholds 1-3 have 25 colors. Thresholds 3-6 have 8 colors. For strong targets and schooling fish, select 3 or 6. For ground fish and bottom-typing select 1 or 4. Delete colors as necessary to remove clutter. All colors can be deleted with the exception of the clipped color. Sonar and Profile have their own threshold adjustment. NOTE: If the selected background is black and the selected clip color is black, then no targets will display on the screen! DELETED This will remove colors from the screen from weak to strong. One way to remove clutter from the screen is to delete colors. Colors can be deleted independently for Sonar and Profile. CLIP Sets the color for the hardest targets. Choosing a color other than red can help distinguish the bottom from targets that are very near the bottom. Adjust the gains so the strongest target marks in the Clip color. Clip color can be selected independently for Sonar and Profile.

19 WESMAR

BACK Sets the background color of the screen: black, blue or white. For blue or white background to appear, delete at least one color. PALETTE Will lower the brightness of target colors without eliminating them, starting from blue to yellow. Sonar and Profile have their own palette adjustment. CURSOR Sets the color of the cursor and marks on the screen. TEXT Sets the brightness of the white numbers and letters. Will not affect the sonar target colors.

Local Settings Configuration (LOCAL Screen)

SCREENS There are 4 screen selections that can be accessed by clicking on the “SCREEN” menu item.

MARKS Turn the range rings and range lines ON or OFF. The range rings represent 25%, 50% and 75% of the configured range. The colors and relative brightness are configured through the CURSOR setting in the COLORS menu.

SCOPEFish loop or “A” scan are other names for Scope. In screen #4 (Down Sounder), the “A” scan will display on the right of the display. “A” Scan can be turned On or Off.

SHAPE Shape can be set to either Circle or Square. For a Circle setting, the sonar will mark targets that lay within the diameter (Sonar Range) of the circle. For a Square, the Sonar will mark targets into the corners of the square. The corner of the square is

20 WESMAR

1.4 times the range of the circle’s diameter, and utilizes the available display screen area more effectively.

PANEL BOX This setting configures the display on the lower right-hand quadrant of the Sonar display. There are three options:

• Status: Displays color thresholds for sonar and profile and the horizontal/depth ranges for the on-screen cursor.

• Nav: When connected to a GPS, the Panel Box will plot the vessel on the grid.

• Test: For troubleshooting – displays a number from 0 to 3000 that relates to transducer tilt.

SYNCUse this when synchronizing two sonars.

AUDIOThis activates the audio mode. Sound is proportional to the echo strength of the target displayed on the screen.

OFF: No audioAudio 1: You hear Transmit and Receive audio.Audio 2: You only hear the Return audio.

CALIBRATEGo into CALIBRATE for further settings and tuning.

Calibrate Settings Configuration(CALIBRATE Screen)

UNITS Select meters, fathoms or feet as the unit for range.

ENGLISH Select the language for the display. English is the default.

21 WESMAR

OFFSET This setting enables the alignment of the image on the screen with respect the bow in plus or minus one degree steps. Adjust the screen offset if the FWD mark on the soundome is not accurately directly aligned with the forward direction.

TUNING Pre-Set at FactoryThis setting adjusts the frequency of the transmitter. This should match the factory setting. To reduce noise or interference, adjust the frequency up or down for the best picture.

Tuning Adjustment:160kHz, set to 159kHz: span 156kHz to 162kHz. 110kHz, set to 114kHz: span 108kHz to 117kHz.60kHz, set to 60 kHz: span 57 to 62kHz.

TEST PATSonar simulation mode. Will only work if sonar is disconnected from transmit/receive board.

SCANNING SONAR TECHNIQUES In Deep Water If the vessel is being operated in deep enough waters so that the sonar receives no bottom echoes when being operated at a 5 degree tilt, set the sonar on medium or long range and adjust the GAIN controls high enough to receive bottom echoes from shallow water at long ranges and set SECTOR SIZE for a 90 degree sector. Use enough FAR GAIN and NEAR GAIN to detect even a gently sloping mud seabed. When properly adjusted, the sonar will display fish schools, boat wakes and other major changes in the water. Although it is possible under ideal circumstances to locate surface targets such as large logs and boats, the sonar is not a reliable tool for detection of these surface targets and should only be used for locating underwater targets.

22 WESMAR

In Shallow Water

At dead-slow speed, the sonar can be used to provide a depth indication of waters immediately ahead and around your vessel. Operation of the Sonar in shallow water requires a different technique and a little more practice. In shallow water as the sound is projected out horizontally at a 0 degree tilt angle from the vessel, the cross-sectional diameter of the beam gets wider and wider. As the sound beam goes out at a distance from the vessel of approximately 4-6 times the depth, the sound beam will begin to intersect the bottom and the sonar will receive bottom echoes. If the bottom is smooth and flat most of the sound energy will be reflected away from the vessel and by using a relatively low sensitivity level the sonar will receive very few bottom echoes. If the water suddenly becomes more shallow, as at the edge of a channel, the edge of the channel will be a more perpendicular target to the sonar beam and will reflect more sound energy which will be displayed on the sonar display. As the sonar sweeps from side to side, areas of shallower water will appear as solid targets and areas of deeper water will provide weaker targets, or no target at all. Any massive hard targets will be excellent sonar reflectors. In very shallow water, a tilt angle of between 0 and +4 degrees is very common.

Sonar indicating that the bottom is shallowing.

23 WESMAR

SYSTEM COMPONENTS

ConsoleThe HD825 console is where all the adjustments are made. Its location should be easily reached when fishing or navigating.

Computer Control UnitThe computer control unit is designed to fit under the instrument panel. There are three cables in the wheelhouse that connect to the computer control unit. Consider the length of these cables before selecting a location to mount the computer control unit.

Transmit/Hoist BoxInstall close to hoist assembly.

Power Supply Unit Install close to transmit/hoist box

Monitor (Customer Supplied)

Specifications:1. VGA, 640 X 4802. Horizontal Sync. 31.5 kHz3. Vertical Sync. 60 Hz4. Flat Screen or Tube type. Any size.

When selecting a location, keep in mind the following:

1. Select a location where the monitor is in full view when fishing.

2. What voltage is available in the wheelhouse to run the monitor? A converter may be needed to supply the correct voltage.3. If there is a chance the monitor might get wet,

HD825 Console

Remote Hand Control Optional

on the HD825

Transmit/Hoist Box

Computer Control Unit

Power Supply Unit

4.33 in

6.76 in

24 WESMAR

install a splash proof or waterproof monitor.

4. If the monitor is in direct sunlight, install a sunlight viewable monitor.

5. If the monitor will be flush mounted, select a monitor with the on/off and adjustment controls on the front.

6. Most monitors come with cables. The video cable is typically 5-feet (1.5 meters) long. The video cable connects to the computer control unit. If the video cable is not long enough use a standard VGA extension cable.

SEACHEST

25 WESMAR

INSTALLATION

How much room is needed?There are three measurements needed to determine the vertical height of the hull unit, seachest and hoist assembly together.

1. Depth of keel at the location of the seachest.The overall vertical height is the total length of the seachest plus the hoist assembly on top. If the boat has a keel then part of the seachest will pass through the hull to the bottom of the keel. This distance will reduce the vertical height needed inside the boat.

2. Seachest length.The seachest must be long enough for the soundome to fit inside plus 1 1/2 inches (38mm) for protection when not in use. This becomes the minimum length. The minimum length is different for the following models:

Model: Minimum LengthHD825-160 21 in (53.3 cm)HD825-H-160 24 in (61 cm)HD825-110 22.5 in (57.2 cm) HD825- H-110 25.5 in (67.8 cm) HD825 -60 22.5 in (57.2 cm) HD825-H-60 29.5 in (74.9 cm)

3. Hoist length.The vertical length is different for the following models:

Model: Minimum LengthHD825-160 25.75 in (65.5 cm)HD825-H-160 33 in (83.8 cm)HD825-110 28.75 in (73 cm)HD825-H-110 33 in (83.8 cm)HD825-60 28.75 in (73 cm)HD825-H-60 33 in (83.8 cm)

26 WESMAR

Seachest Location

For the best sonar performance avoid items in front of the seachest that can create bubbles or turbulence. Items such as zinc plates, cooling pipes, sounder housings, water intakes or discharge ports should NOT be in front of the seachest.

Avoid installing the seachest near other sounding equipment. Down sounders should be behind the seachest. Other sonars should be on the opposite side of the keel.

Select a location 1/3 to 1/2 of the ship’s overall length back from the bow. On lighter boats where the bow is likely to come out of the water at times, moving the seachest closer to the half length is recommended.

Athwart Vessel Location:1. Installation through the keel is optimum, center line of vessel roll.

2. Alongside the keel and 1/2 in (13 mm) up from the keel is a very good location, vessel roll is minimal. The keel also adds strength to the seachest as it protrudes through the hull. Fair the seachest to the keel. Alongside the keel will help keep debris from snagging.

3. If next to the keel is impossible, locate the seachest within 40 in (1 meter) from the keel. The bottom of the seachest must extend down to 1/2 in (33mm) up from the keel. Fair the seachest for-and-aft but not to the hull. If faired to the hull, bubbles will travel down the taper to the soundome. To deflect debris a plate cut at a 45-degree angle to the hull should be attached to the leading and trailing edge of the fairing. The plate will deflect debris and not catch on the seachest.

27 WESMAR

Seachest Specifications

The HD825, depending on the model, will have a 6-inch or an 8-inch soundome. The size of the soundome will determine the pipe and the flange specifications. Use one of the included drawings when fabricating the seachest at the boat yard. Steel and wooden boats use steel. Aluminum boats use aluminum. Fiberglass boats use fiberglass. Fiberglass seachest with flange can be ordered from WESMAR. (6-inch Part #62.04327.0 or 8-inch Part #62.04329.0)

6-inch Seachest1. Use 6-inch schedule 80 steel pipe (5.761 ID nominal)2. Length between minimum length (3.2.1) and 40 in (1.2 m)3. Paint inside with same bottom paint as hull.

8-inch seachest1. Use 8-inch Schedule 80 steel pipe (7.625 in ID nominal)2. Length between minimum (3.2.1) and 40 in (1.2 m)3. Paint inside with same bottom paint as hull.

ELECTRIC HOIST

INSTALLATION

Note: The HD825 can be ordered with an electrical hoist or a hydraulic hoist.

Calculate Length of Soundome

TubeThere are two electrical hoist systems. One for the 6-inch soundome and another for the 8-inch soundome. The difference between the two is the size of the flange and the total travel.1. 6-inch soundome: measure the length of the seachest and add 4 inches (10 cm)2. 8-inch soundome: measure the length of the seachest and add 5.5 inches (14 cm)

28 WESMAR

When the proper length of the soundome tube is determined, measure from the threaded end, mark the length and cut. File the rough edges.

Check soundome clearance

inside seachestThe soundome should not fit tight inside the seachest. This can place additional strain on the hoist motor and damage it. Also, if the insides of the seachest start to rust the dome may jam and possible damage to the hoist motor may result. A loose fitting soundome will be subject to vibration reducing sonar performance.

The HD825 soundome must fit the seachest with a clearance no greater than 1/16 inch (1.6 mm).

When checking the soundome, do not handle the soundome by the soundome cable. Hold the dome by the neck.

Fasten the soundome to the

soundome tube

1. Thread the jam nut into the soundome.

2. Wrap Teflon tape around the threads of the soundome tube. WARNING: only use Teflon tape on the threads of the soundome tube.

3. Run the soundome cable all the way through the soundome tube, starting from the threaded end. Have a helper hold the soundome at the same time rotate the soundome tube. Be careful not to cross threads. Tighten by hand without tools.

4. Tighten the jam nut using a wrench for a snug fit.

5. To protect the soundome cable from chafing on the end of the soundome tube, a urethane strain relief is supplied. Cut the urethane strain relief down one side. Open the cut and push the soundome cable into the strain relief. Slide the strain relief down the cable and into the open end of the soundome tube.

29 WESMAR

Assemble Hoist

1. Remove the packing flax from the packing gland on the flange.

2. Run the soundome cable through the flange following by the soundome tube. Insert the packing flax one at a time. Use a 1/4-inch (6 mm) rod to push the flax to the bottom of the packing gland. Rotate the next flax by 90 degrees and push to the bottom. Do the same for the remaining flax, total six pieces. Slide the packing gland cap over the soundome tube. Apply ANTI-SEIZE (supplied) to the thread posts. Thread the two nuts on each cap post DO NOT tighten the 7/16-inch nuts.

3. Thread the top hoist clamp onto the lead screw until it is flush with the top.

4. Apply ANTI-SEIZE to the bolts on the safety clamp and top hoist clamp. Slide the safety clamp over the soundome tube. DO NOT tighten. Push the soundome tube through the top hoist until 2 inches (51 mm) remain on the other side. Tighten the top hoist clamp (3/8 inch nuts) so the soundome tube is locked in place.

5. Place safety clamp directly below the top hoist clamp and tighten bolts.

Attach Hoist to Seachest

1. The soundome has the letters FWD stamped on the edge of its stainless steel top. Locate this mark and make a new mark on top of the soundome tube in line with the FWD stamp. This mark will be the reference point that points to the bow.

2. Clean the flange surface of both hoist and seachest. Place the clean neoprene gasket on

Use alcohol to clean soundome tube and grip area of upper hoist clamp. Rough surface of soundome tube where the clamp will be fastened with 100 G sandpaper as well as the grip area of the hoist clamp. Use caution not to over tighten bolts. Use anti-seize on bolts as instructed.

Thoroughly grease leadscrew before use.

30 WESMAR

the seachest flange. There is no need to grease the gasket. Carefully lift the hoist and align the soundome to the opening of the seachest. Lower the hoist onto the seachest. Rotate the hoist for easy access to the TR box. Apply ANTI-SEIZE (supplied) to the 1-inch bolts (supplied). Insert the 1-inch bolt from the bottom up. Use the lock washers and nuts (supplied) to tighten the hoist flange to the seachest.

3. Align the soundome to the boat, FWD to point toward the bow of the vessel.

4. Check the soundome inside the seachest. The hoist is shipped from WESMAR in the up position. The above procedure will place the soundome 1.5 inches (38 mm) inside the seachest. If the boat is out of the water, check this distance. To make corrections, loosen the top hoist clamp and push up or down on the soundome tube for the correct measurement. Retighten the hoist clamp.

5. Slide the safety clamp up to the top hoist clamp. Apply ANTI-SEIZE to the bolts and tighten.

WIRING

All hoist motor cables are numbered and are installed on mother board in transmit box. (All cables are numbered for easy assembly and installation.) Any questions, please contact factory.

Check hoist travel distanceThe hoist motor is calibrated at the factory for the correct travel distance. Lower the hoist and check the distance the soundome travels beneath the keel.

To make corrections loosen the top hoist clamp and safety clamp. Move the soundome up or down for the correct position.

Packing GlandTighten the packing gland by rotating the two nuts hand tight then two complete turns using a

Lead Screw Assembly

31 WESMAR

wrench. Tighten the second nut against the first nut.

When the boat is back in the water, cycle the hoist up and down four times. Check the packing gland for water. It is normal for the packing gland to be wet but not dripping with water. Retighten the nuts on the packing gland. WARNING: Do not tighten the packing gland too tight. A tight packing gland will hold the soundome tube from moving, either the fuse will blow or the bronze shear pin will break.

2. Run the soundome tube through the flange.

HYDRAULIC HOIST INSTALLATIONInstall the soundome

1. Clean the mating surfaces of the soundome and soundome tube flange.

2. Run the soundome cable through the flange O-ring then through the soundome tube so there is 1 foot (30 cm) slack at the dome end.

3. Apply silicone compound to the O-ring. Position the O-ring in the machined groove on top of the soundome.

4.Use ANTI-SEIZE and bolt the soundome to the soundome tube and tighten.

5. FWD (Forward Arrow) depicts direction for-ward. Mark top of soundome tube for reference of forward arrow.

Install the hydraulic ram

1. Remove the top cross plates from the rack assembly. Note which plate is connected to which rack. Make sure the tube guide clamp does not slip off the soundome tube when removing the cross plates.

32 WESMAR

2. Remove the cable strain relief from the hydraulic ram end cap.

3. Place the soundome cable in the slot on the hydraulic end cap. Slide the hydraulic ram inside the soundome tube. The ram can be disconnected from the hydraulic power pack by using the quick disconnect fittings at the end of the hydraulic lines. Align the soundome cable coming through the end cap with the rack leg that has the limit switches. The cable will be to the left and the limit switches to the right. Push the hydraulic ram in place. Align the holes in the soundome tube with the holes in the ram end cap. Slide the tube guide clamp up over the aligned holes. Bolt all three pieces together. Before tightening visually draw a line from the packing gland bolt and the bolt just installed. Rotate the soundome tube so the two bolts are in line with one another. Tighten the two bolts. Do not tighten the packing gland bolts at this time.

4. Place the strain relief grommet around the soundome cable. Slide the grommet down the cable until it fits snuggly into the top of the hydraulic end cap. Bolt the strain relief plate over the grommet.

5. Push the soundome tube up until the hydraulic ram shaft goes through the holes in the center of the cross plates. Thread the castle nut onto the ram shaft so it’s snug; at the same time align the holes through the shaft with the nut. Place a cotter pin through the hole and lock it in place.

INSTALLATION

Install hoist assembly on seachest

Placing the hoist assembly on the seachest will require the assistance of two or three helpers. Use a chain fall connected to the overhead to lift the load.

1. If the hydraulic lines are removed from the ram end cap, the fittings may leak when the hoist

33 WESMAR

is lifted up. To reduce leaking, install the safety clamp around the soundome tube just above the packing cap and tighten in place. This will keep the soundome tube from slipping down when lifting the hoist.

2. Clean flange surfaces of the seachest and hoist. Place the neoprene gasket on the seachest flange.

3. Lift the hoist assembly and set it on top of the seachest. Rotate the flange to coincide with the hoist power pack and limit switches for easy maintenance.

Alignment considerations: a) Only DC power pack can be installed on the hoist rack. The rack opposite the limit switches is the only rack leg the power pack can be attached to. b) The AC power pack must be installed on a bulkhead. The DC power pack can also be installed on a bulkhead and not on the rack. Rotate the hoist so the rack leg with the limit switches is adjacent to the bulkhead that has the power pack. This will avoid crossing the hydraulic lines.

4. Bolt the hoist flange to the seachest. Apply ANTI-SEIZE on the bolt threads. Insert the bolts from the bottom up. Use the lock washer and nuts and tighten in place.

5. Tighten the packing gland cap bolts finger tight. Use wrench and tighten each bolt one full turn, repeat for a total of two turns. NOTE: When the vessel is back in the water, cycle the hoist up and down four times. Check the packing gland for water. It is normal for the packing gland to weep but not drip. Tighten if necessary.

Install hydraulic power pack

1. Install the DC power pack on the rack leg opposite the leg with the limit switches. Half way up on the leg are two holes for bolting the DC mounting bracket.. Use ANTI-SEIZE and tighten in place. Connect the hydraulic lines to the cylinder.

34 WESMAR

2. Install the AC power pack to the bulkhead. Use the mounting bracket attached to the motor. Generally taped standoffs are welded to the bulkhead and the motor will bolt to them. The hydraulic lines will need to be lengthened. Make sure there is enough slack in the lines for up and down travel. Connect the hydraulic lines to the cylinder.

3. After the hydraulic lines are connected make sure they are free to travel and no chance to catch on nonmoving part. The soundome cable must also be free to travel and not catch on any nonmoving part.

4. Install the vent screw in the reservoir. In order to ship the hydraulic power pack full of oil, the vent screw was replaced with non-venting screw. This non-venting screw must be removed and replaced with the supplied venting tape.

WIRING, DC HYDRAULIC HOIST

The DC hydraulic hoist is a stand-alone system that does not require power from the sonar. It will operate on its own. The hydraulic power pack is available in 12 and 24 VDC. Wiring is different between the two voltage systems.

Check the voltage of the hydraulic pack unit before wiring.

DC hoist board wiring

1. The DC hoist board is enclosed in its own aluminum box. The DC hoist board will work on both 12V hydraulic power pack units and 24V hydraulic power pack units.

2. Hoist control cable, PN: 78.10015.0The hoist control cable is 25-feet (7.6 meters) long. One end is terminated with a six pin connector, the other end is terminated with terminal lugs. The connector end will mate with the connector

+12V

12V Ground

+24V

24V Ground

12 Volt Wiring:

24 Volt Wiring:

35 WESMAR

on the switch panel in the wheelhouse. The other end will go through a strain relief fitting on the hoist control box and connect to terminal TB1, number to number.

If a longer hoist control cable is needed, hoist extension cables are available in 25-foot (7.6 meter) lengths, PN: 78.10015.1

3. Hoist board voltageVoltage to the hoist board must be the same as the voltage for the hydraulic power pack. This voltage powers the solenoid valve, the big relay on the DC motor, the up/down relays on the hoist board and the red and green lights on the switch panel in the wheelhouse. The hoist board is fused with a 5A slow blow fuse. Run ships power through a strain relief fitting on the hoist box and connect the battery negative to terminal #31 and battery positive to terminal #30. Use the correct wire size to carry 5 amps over the distance from battery to hoist board.

4. Solenoid valve wiringThe large relay on the DC motor is activated by the same voltage that operates the solenoid valve. To simplify wiring, the relay is pre-wired into the solenoid valve. From the solenoid valve there is a pre-wired cable with numbered lugs at the end. Pass the cable through a strain relief on the bottom of the hoist box. Connect the wires to TB2, number to number.

5. Limit switch up/down wiringLocated on the hoists are two limit switches that will stop the hoist at its up and down limits. Both switches are pre-wired and numbered at WESMAR. Run the limit switch wires through a strain relief on the hoist box. Connect the wires to TB2, number to number.

6. DC motor wiringThe hydraulic power pack is available in 12V and 24V. Confirm the voltage of your unit before wiring. The 12V motor will draw 65 amps under normal load. The 24-volt motor will draw 40 amps under normal load. The amperage will go up if resistance in hoisting increases. Fuse the 12-

35

Hydraulic Hoist Assembly

36 WESMAR

volt motor for 130 to 140 amps. Fuse the 24 volts for 55 to 60 amps. Select a wire gauge appropriate for the load. The hoist takes less than ten seconds to go up or down so the cycle is very short before it turns off. Wire as pictured on Page 34.

WIRING, AC HYDRAULIC HOIST

The AC wiring hoist is a stand-alone system that does not require power from the sonar to operate. It will operate independent from the sonar. The hydraulic power pack is available as 110V AC single phase and 220V AC single phase. Wiring is the same for both systems.

AC hoist board wiring

1. The AC hoist board is enclosed in its own aluminum box. Before wiring, check the AC voltage of the board. Next to transformer T1 there will be one or two jumpers installed. One jumper is for 220V AC and two jumpers are for the 110V AC NOTE: Use a 30 amp slow blow fuse for 110V AC and a 20 amp slow blow fuse for 220V AC.

2. Hoist board voltage. Voltage to the hoist board is the same voltage that will power the motor and the solenoid valve on the hydraulic power pack. Run ships AC power through one of the strain relief fittings on the hoist box and connect the wires to TB3. Use wire size capable to handle a one horsepower motor.

3. Hoist control cable, PN: 78.10015.0The hoist cable is 25 feet (7.6 meters) long. One end is terminated with a six pin connector, the other end is terminated with terminal lugs. The connector will mate with the connector on the switch panel in the wheelhouse. The other end will go through one of the small strain relief fittings on the hoist control box. Connect each number wire to the same numbered terminal on

TB1. If longer hoist control cable is needed, hoist extension cables are available in 25 foot (7.6 meters) lengths. PN: 78.10015.1.

4. Solenoid valve wiringThe solenoid valve is pre-wired with terminal lugs at the ends. Run the solenoid cable through one of the strain relief fittings on the hoist box. Connect the wires to TB2, number to number.

5. Limit switch up/down wiring:There are two limit switches on the hoist rack that will stop the hoist at the travel limits. Both switches are pre-wired with terminal lugs at the ends. Run the limit switch wires through one of the strain relief fittings on the hoist box. Connect the wires to TB4, number to number.

OPERATION CHECK, HYDRAULIC HOIST, DC & AC

Lowering hoist first time

1. Check to make sure there is enough room beneath the boat before lowering the soundome. Total travel is 18 inches, 45.5cm. Outside the seachest 16.5 inches, 42cm.

2. Make sure the hoist switch is in the ‘up’ position.

3. Disconnect the upper hoist limit switch wire labeled #27 located on TB2 for DC motors or TB4 for AC motors. Once this wire is disconnected the hoist will only move down when powered.

4. Disconnect the hoist down limit switch wire labeled #1 located on, TB1 for DC motors and TB1 for AC motors. Once this wire is disconnected the hoist will not move when the hoist switch in the wheelhouse is pushed down to lower the soundome.

Cotter Pin Castle Nut

Soundome Cable

Tube Guide Clamp Safety Clamp

Limit Switch

38 WESMAR

5. 1. The hoist will lower. The hoist should stop before the safety clamp comes in contact with the packing gland. If it looks like the safety clamp will come in contact with the packing gland remove the wire immediately. Tap the wire on terminal #1 for short movements until the hoist stops. The top clamp should stop no less then 0.5 inches, 13mm above the packing gland.

Adjustment - Move the lower limit switch up on the hoist rack so the top clamp is 0.5 inch, 13mm to 1.0 inch, 25.5mm above the packing gland

6. Lift up the soundome - Push the hoist switch up in the wheelhouse. Touch the wire labeled #27 to terminal #27. The hoist will start to go up. The hoist should go up, stop and the motor turn off.

Adjustment - If the motor keeps running when the hoist has stopped in the up position the top limit switch must be lowered. Lower the limit switch so the hoist will stop 0.5 inch, 13mm before the mechanical stop. 7. Connect the wires back to terminal #27 and #1.

Check hoist soundome travel

1. Lower the soundome, push the hoist switch down in the wheelhouse.

2. Measure the distance from the bottom of the seachest to the bottom of the soundome under the boat. The distance should be 16.5 inch, 42mm to 15.5 inch, 39mm.

Packing Gland

1. Tighten the packing gland by rotating the two nuts hand tight then two complete turns with a wrench. Tighten the second nut against the first nut to lock.

2. When the boat is back in the water cycle the hoist up and down four times. Check the packing gland for water. It is normal for the packing gland

Safety Clamp

38

39 WESMAR

to be wet but not dripping with water.

3. Retighten the nuts if water drips after cycling the hoist. WARNING: Do not tighten the packing gland too tight. A tight packing gland will hold the soundome tube from moving and may trip the circuit breaker or damage the electric motor.

4. From time to time inspect the packing gland. Tighten if needed.

HYDRAULIC HOIST TROUBLESHOOTING

1. ‘Up’ and ‘Down’ are reversed: a. Solenoid valve is wire opposite. b. Hydraulic lines are reversed.2. Hoist motor runs, green light on, but will not raise or lower. a. Solenoid valve stuck. b. Check solenoid wiring. c. Fluid level in reservoir is too low. d. Packing gland cap is too tight. e. Hoist rack is bent. f. Obstruction in seachest. g. Reservoir is not vented.

3. Hoist motor continues to run, green light on, hoist did go up & down. a. Limit switch arm not triggering. b. Soundome tube not traveling all the way. c. Broken wires to limit switches. d.Reservoir low on fluid.

4. Soundome tube will not stay up. a. Dirty check valve. b. Leak in hydraulic lines. c. Leak in hydraulic cylinder.

39

40 WESMAR

41 WESMAR

HYDRAULIC MAINTENANCE

Monthly checks:

1. Oil Reservoir - Fluid level should be at the venting plug with the hoist in the ‘up’ position. Oil, Chevron automatic transmission fluid, “Dexron II” or equivalent.

2. Packing gland - Little water should weep from the packing. It should not drip. If there is too much water coming from the packing gland tighten each of the cap bolts one full turn. Run the hoist up and down and check for water. If the packing gland cap has bottomed out, add one new layer of packing, Wesmar part #09.00749.0

3. Check all wiring and hydraulic lines that may catch or snag when the hoist is moving.

14120 NE 200th Street, Box 7201Woodinville, WA 98072-4001 USA

T: (425) 481-2296 / F: (425) 486-0909Email: dsoderberg@wesmar.com

Web: www.wesmar.com