Wesmar HD825 Series Specification sheet

OPERATION and INSTALLATION
MANUAL
WESTERN MARINE ELECTRONICS
14120 NE 200th Street, PO Box 7201
Woodinville, WA 98072-4001 USA
Telephone: [phone] Fax: [phone]
[email protected] www.wesmar.com
August 2013
HD825 Series Sonar

2 WESMAR
Contents
INTRODUCTION ............................................................................................................................................................................ 5
Theory of Operation ............................................................................................................................................................ 5
Scanning Sonars Versus Echo Sounders................................................................................................................... 5
OPERATION ................................................................................................................................................................................... 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).............................................................................15
SCANNING SONAR TECHNIQUES......................................................................................................................................21
WHEELHOUSE EQUIPMENT ...............................................................................................................................................23
Console.....................................................................................................................................................................................23
Computer Control Unit.....................................................................................................................................................23
Power Supply Unit..............................................................................................................................................................23
Transmit/Hoist Box ...........................................................................................................................................................23
Monitor (Customer Supplied) .......................................................................................................................................23
SEACHEST INSTALLATION....................................................................................................................................................25
How much room is needed?..........................................................................................................................................25
Seachest Location ............................................................................................................................................................. 26
Seachest Specifications ...................................................................................................................................................27
ELECTRIC 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................................................................................................................................................ 29
WIRING ........................................................................................................................................................................................... 30
Check hoist travel distance ........................................................................................................................................... 30
Packing Gland...................................................................................................................................................................... 30
HYDRAULIC HOIST INSTALLATION...................................................................................................................................31
Install the soundome ..........................................................................................................................................................31
INSTALLATION.............................................................................................................................................................................32
Install hoist assembly on seachest ............................................................................................................................32
Install hydraulic power pack .........................................................................................................................................33
WIRING, DC HYDRAULIC HOIST ....................................................................................................................................... 34
DC hoist board wiring...................................................................................................................................................... 34
WIRING, AC HYDRAULIC HOIST ...................................................................................................................................... 36
AC hoist board wiring ...................................................................................................................................................... 36
OPERATION CHECK, HYDRAULIC HOIST, DC & AC ................................................................................................37
Lowering hoist first time..................................................................................................................................................37
Check hoist soundome travel....................................................................................................................................... 38
Packing Gland...................................................................................................................................................................... 38
HYDRAULIC HOIST TROUBLESHOOTING .................................................................................................................. 39
HYDRAULIC MAINTENANCE ...............................................................................................................................................41

3 WESMAR
HD825 Sonar Controls
ON/OFF
REVERSE SCAN
For tracking sh CHANGE
SECTOR SIZE
CURSOR FOR
MARKING FISH
AND FOR MENU
SELECTION
CHANGE RANGES
TILT TRANSDUCER
SOUND HOIST
SCREEN SELECTION
There 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, Proler ( ), 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
Searchlightscanning sonarhave manyapplications
in commercial shing, passenger ship navigation,
subsea construction, diving and salvage and
underwater security.
Sonar equipment transmits sound underwater to
locate objects such as sh 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
reected from a rm object. Dark blue or black
indicates clear water – no return.
Obviously, rocks return a stronger signal to the
transducer than a mud bottom or sh. Fish will
return a signal to the sonar, but unless there are
many sh 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 xed 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 (sh, 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 shing vessels,
operators want to locate sh or sh-bearing
bottom structures quickly to minimize time at
sea, thereby maximizing safety and improving
protability.
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 prole 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 procient with your
Sonar is to use it often. The more you work with
it, the more valuable it will be as a navigation or
sh-nding 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
sh, 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 sh
such as herring, mackerel and large individual
sh like salmon, albacore tuna and blue marlin in
deep water.
4. Detection of rocks, reefs or other bottom
structure for bottom trawlers, red snapper
shermen, 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 congured 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 SCAN
For tracking sh CHANGE
SECTOR SIZE
CURSOR FOR
MARKING FISH
AND FOR MENU
SELECTION
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 congured by clicking on the main
menu item “SET UP”. Conguration settings are
grouped by: Sonar, Prole, 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 proling (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.