Raymarine DSM250 Owner's Handbook Manual
  1. Manuals
  2. Brands
  3. Raymarine Manuals
  4. Marine Equipment
  5. DSM250
  6. Owner's handbook manual
Raymarine DSM250 Owner's Handbook Manual

Raymarine DSM250 Owner's Handbook Manual

Digital sounder module
Hide thumbs
Table of Contents

Advertisement

Quick Links

DSM250
Digital Sounder
Module
Owner's
Handbook
Document number: 81211_1
Date: December 2002

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DSM250 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Raymarine DSM250

Summary of Contents for Raymarine DSM250

  • Page 1 DSM250 Digital Sounder Module Owner’s Handbook Document number: 81211_1 Date: December 2002...

  • Page 3: Intended Use

    Only remove the transducer cable after power has been removed from the DSM250. As with any electronic device, be sure the sounder module is mounted where it is well ventilated and free from gasoline fumes.

  • Page 4: Emc Conformance

    Conventions Raymarine echo sounding (sonar) devices with integrated dis- plays are known as Fishfinders. In this document, the DSM250— which does not have its own display—is alternatively called a Digital Sounder Module, Sounder, or just Module. The DSM250’s image data can be viewed on a display unit when that display is in Sonar Mode.

  • Page 5: Technical Accuracy

    Raymarine. Warranty To register your DSM250 Digital Sounder Module ownership, please take a few minutes to fill out the warranty registration card found at the end of this handbook. It is very important that you complete the owner information and return the card to the factory in order to receive full warranty benefits.
  • Page 6 This product contains technology provided under license by Acorn Group plc. The copyright of this intellectual property is acknowledged by Raymarine, Inc. as are Acorn’s trademarks and patents. Acorn’s world wide web address is www.acorn.com. Raymarine is a registered trademark of Raymarine Limited.

  • Page 7: Table Of Contents

    2.5 Mounting the Sounder Module ... 2-8 2.6 System Connections ... 2-9 SAFETY NOTICES ...iii EMC Conformance ... iv Warranty ... v Raymarine Products and Services ... v How to Use This Handbook ...1-2 What's New ...1-3 General ...1-4 Sonar Mode Display Features ...1-5 Operating Modes ...1-7...
  • Page 8 Day/Night ...4-6 Help ...4-7 Soft Keys ...4-7 Key Beep ...4-7 MOB Data ...4-7 Autopilot Pop Up ...4-7 Menu Timeout Period ...4-7 Units ...4-8 Variation Source ...4-8 Bridge NMEA Heading ...4-9 NMEA-Out Set Up ...4-9 Cursor Echo ...4-11 DSM250 Digital Sounder Module...
  • Page 9 DSM250 Digital Sounder Module 4.4 Sonar Set Up Parameters ... 4-13 Chapter 5: Basic Display Controls ... 5-1 5.1 Introduction ... 5-1 5.2 Setting Color and Brightness ... 5-1 5.3 Controlling the Display ... 5-5 5.4 Display Control Functions ... 5-13 Date and Time Settings ...4-11...
  • Page 10 Adjusting Display Gain (Sensitivity) ...6-5 Using Alarms ...6-8 Vessel ...6-10 Placing a Waypoint ...6-13 Routine Checks ...7-1 Cleaning Instructions ...7-1 EMC Servicing and Safety Guidelines ...7-2 Status LED ...7-6 How to Contact Raymarine ...7-7 Worldwide Support ...7-10 DSM250 Digital Sounder Module...

  • Page 11: Chapter 1: Overview

    Chapter 1: Overview 1.1 Introduction This handbook describes the DSM250 Digital Sounder Module. The DSM250 receives sonar signals from a transducer mounted in the water and transmits data via or Chartplotter display unit already installed in your vessel, elimi- nating the need for a separate display unit. You may also connect the module to an existing PLUS Fishfinder display for improved performance.

  • Page 12: How To Use This Handbook

    Chapter 1 gives an overview of the display unit controls and sonar operation. Chapter 2 provides planning considerations and detailed instruc- tions for installing the DSM250 and connecting the unit to the dis- play unit via Chapter 3 provides instructions for setting up your system to suit your preferences.

  • Page 13: Features

    The DSM250 operates much like traditional Raymarine fishfind- ers. If you are already familiar with our displays, you won’t have much difficulty using the DSM250. Below is a list of DSM250 features that differ from our traditional fishfinder displays. •...

  • Page 14: General

    Transducer detection. For safety reasons, if the transducer is disconnected and then reconnected while the sounder is powered on, the DSM250 does not detect that the transducer has been re- attached. In this case, you must power down the DSM250, recon- nect the transducer cable, and then power the sounder module back on before it operates properly.

  • Page 15: Sonar Mode Display Features

    When you first switch the display unit into Sonar mode, the scrolling bottom graph is displayed. This is a graphical represen- tation of the echoes seen by the DSM250. As time passes, this dis- play scrolls from right to left and becomes a record of the echoes seen.
  • Page 16 Range Indicators Color gain Gain AUTO GCRZFH Cursor, controlled by trackpad Bottom depth FREQUENCY Figure 1-3: DSM250 Digital Sounder Module Alarm enabled Shallow, Deep Fish 50kHz 36 37 ZOOM BTM.LOCK A-SCOPE Typical Display in Sonar Mode Target Depth ID On...

  • Page 17: Operating Modes

    Chapter 1: Overview Operating Modes Depending on the types of display(s) you have connected via up to four full-screen modes – sonar, chart, radar, and data log are available. You select the operating mode using the DISPLAY key as described in Chapter 3. You can also set Windows On to split the display into two half- screen windows (horizontal or vertical) to show supplementary data, or to display sonar and chart or radar simultaneously.

  • Page 18: Sonar Options

    For details on the radar, chartplotter or fishfinder display, please refer to the Owner’s Handbook supplied with that unit. Sonar Options The DSM250 provides controls to select additional modes: • Frequency – you can select the transducer frequency: 50 kHz for wide coverage and deep water, 200 kHz for a detailed view, both frequencies simultaneously or auto-frequency.

  • Page 19: Sounder Functions

    Lock, or A-Scope can be displayed with the dual frequency graph. All of these options are available when the sonar data is displayed in a half-screen window. Sounder Functions The DSM250 includes the following functions: • Automatic or manual selection of scroll speed for bottom graph display •...
  • Page 20 AUTO GC Z H 200kHz 200kHz 50kHz 50kHz A-SCOPE FREQUENCY Split Frequency with A-Scope AUTO GC Z H 200kHz 200kHz 50kHz A-SCOPE FREQUENCY Zoom Split with Split Frequency DSM250 Digital Sounder Module SPLIT 27.2 27.2 ZOOM BTM.LOCK A-SCOPE SPLIT ZOOM BTM.LOCK A-SCOPE D6202-1...

  • Page 21: Chapter 2: Installation

    Chapter 2: Installation Chapter 2: Installation 2.1 Introduction This chapter provides installation instructions for your DSM250. Basic systems, such as that in Figure 2-1 below, are explained. Details for mounting the DSM250 and connecting the equipment are included. Transducer Compass Figure 2-1:...

  • Page 22: Planning The Installation

    Section 2.4. EMC Installation Guidelines All Raymarine equipment and accessories are designed to the best industry standards for use in the recreational marine environment. Their design and manufacture conforms to the appropriate Elec- tromagnetic Compatibility (EMC) standards, but correct installa- tion is required to ensure that performance is not compromised.

  • Page 23: Suppression Ferrites

    Figure 2-2: Connections to Other Equipment If your Raymarine equipment is to be connected to other equip- ment using a cable not supplied by Raymarine, a suppression fer- rite must always be attached to the cable that is closest to the Raymarine unit.

  • Page 24: Unpacking And Inspecting The Components

    Transducers for Fishfinders Handbook 2.3 Selecting the Equipment Location Sounder Module Mounting Location The DSM250 is waterproof to CFR46 is and designed to be mounted either above or below deck. The unit should be protected from physical damage and excessive vibration.

  • Page 25: Cable Runs

    Chapter 2: Installation CAUTION: Do not mount the DSM250 in the engine compartment. When planning the installation, the following should be consid- ered to ensure reliable and trouble free operation: • Access: There must be sufficient space below the unit to enable cable connections to the panel connectors, avoiding tight bends in the cable.
  • Page 26 3 wires at the other end for connecting the power supply. The power cable may be extended by up to 60 ft (20 m) using a wire gauge of AWG 12 or greater. The DSM250 is intended for use on ships’ DC power systems rated from 10.7 V to 32 V.
  • Page 27 Chapter 2: Installation 9.96 in (252.9 mm) 9.51 in (241.6 mm) 10.76 in (273.3 mm) Figure 2-3: DSM250 Unit Dimensions Weight: 2.2 lbs (1.0 Kg) Compass Safe Distance: 39 in (1 m) 7.37 in (187.2 mm) D6168-1...

  • Page 28: Mounting The Sounder Module

    2.5 Mounting the Sounder Module The DSM250 can be installed either above or below deck using the supplied hardware. CAUTION: Do not mount the DSM250 in the engine compartment. To allow for proper water drainage and ease of cable connection, the DMS250 should be mounted vertically, so that the cables can hang below the unit, as in Figure 2-4 .

  • Page 29: System Connections

    (screen) connection. • HSB, in/out connector for connecting to an play (Chartplotter, Fishfinder or Pathfinder Radar) Figure 2-5: The following sections detail the connectors used when installing the DSM250. Mounting the DSM250 DSM250 Connector Panel PLUS Series dis- D6161-1...

  • Page 30: Dc Power Connection

    2-10 DC Power Connection The DSM250 is intended for use on ships’ DC power systems rated from 10.7 V to 32 V. The power connection to the unit should be made at either the out- put of the battery isolator switch, or at a DC power distribution panel.

  • Page 31: Ground Connection

    Note: You should locate the DSM250 so that the power cord can be easily removed, if necessary. If the sounder is placed in a difficult-to- reach location, Raymarine strongly suggests installing an on/off switch on the DSM250 power cord at a point where it is easily acces- sible. Ground Connection It is important that an effective RF ground is connected to the sys- tem.

  • Page 32: Hsb 2 Connection

    An HSB cable is required to connect the sounder module to the display unit for showing echo sounder data. A 3m (10 ft) HSB cable is supplied with the DSM250. These cables are also available in lengths of 1, 6, 10, and 20 m. See Table 2-1 Parts and Accesso- ries on page 2-4 for the complete list and associated part numbers.

  • Page 33: Transducer Connection

    Combined speed/temperature transducers have a 3 pin female connector that requires the use of an additional Y-shaped cable (Raymarine part number E66022) to attach to the 7 pin connector on the display. This Y-cable is included with your speed/tempera- ture transducer.
  • Page 34 Cutting the cable will also void the warranty. Figure 2-8: CAUTION: Removing the transducer cable from the rear of the DSM250 while the sounder module is powered on can cause sparks. Only remove the transducer cable after power has been removed from the DSM250.

  • Page 35: Emc Conformance

    If the transducer cable is accidentally removed while the DSM250 is powered on, remove power from the sounder module, replace the transducer cable, and then return power to the module. As a safety feature, the DSM250 only recognizes that the transducer is connected at power-up. EMC Conformance Always check the installation before going to sea to make sure that it is not affected by radio transmissions, engine starting, etc.
  • Page 36 2-16 DSM250 Digital Sounder Module...

  • Page 37: Chapter 3: Getting Started

    Note: All settings described in this chapter are retained when the unit is powered off. However, there is a one-minute delay from the time you make the setting change to when the DSM250 places it in memo- ry. If you power down the sounder less than one minute after making a change, the setting is lost.

  • Page 38: Updating Software On The Display Unit

    In this case, both units are capable of collecting sonar data so you must tell the display it is to be a repeater for the DSM250 and not a master unit on its own.

  • Page 39: Selecting Sonar Mode

    4. Press the REPEATER soft key. 5. Press ENTER. The display unit is now designated as the Repeater. Full details on setting up your DSM250 and display are given in Chapter 4. 3.5 Selecting Sonar Mode If properly connected to an Fishfinder display unit, you can begin viewing echo sounder data by setting the display to Sonar mode.
  • Page 40 When SONAR mode is shown (as in Figure 3-1 ), press ENTER or CLEAR. The default soft keys are displayed. The display shows the sounder screen. 099 o 2.410 CHART SONAR RADAR SELECT WINDOWS Using the DISPLAY Key DSM250 Digital Sounder Module SPLIT HOR VER D6191-1...

  • Page 41: Simulator Mode

    DSM250. Before using Simulator mode, make sure the HSB cable is con- nected from the DSM250 to the display unit and that both the DSM250 and display unit are connected to ship’s power. If you have not fully installed the sonar module, you can still operate in Simulator mode by connecting the module and display devices via the HSB cable.

  • Page 42: Viewing Simulator Data

    Figure 3-3 demonstrates how to setup the DSM250 for Simulator mode; Chapter 2 gives full installation details. Digital Sounder Module Figure 3-3: Viewing Simulator Data After you have properly connected and powered up the DSM250 and display units, you can toggle Simulator mode on and off using the Sonar Setup menu.

  • Page 43: Chapter 4: System Setup

    Note: All settings described in this chapter are retained when the unit is powered off. However, there is a one-minute delay from the time you make the setting change to when the DSM250 places it in memo- ry. If you power down the sounder less than one minute after making a change, the setting is lost.
  • Page 44 Some parameters are controlled by a slider that is displayed above two of the soft keys. For some parameters, a soft key provides access to a sub- menu of further options. DSM250 Digital Sounder Module TRIP RESET D5019-1...

  • Page 45: System Set Up Parameters

    Chapter 4: System Setup 4.3 System Set Up Parameters The SYSTEM SET UP option enables you to set up your system con- SYSTEM SET UP¬ figuration and personal preferences. The following table lists the System menus and their options, shows the factory default setting, and provides a space for you to make a note of your new setting.
  • Page 46 OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON OFF or ON DD/MM/YY or MM/DD/YY 12 HOUR or 24 HOUR DSM250 Digital Sounder Module Factory Default Setting NO TIMEOUT NAUTICAL miles KNOTS FEET FAHRENHEIT...

  • Page 47: Data Boxes

    Chapter 4: System Setup Table 4-1: System Set Up Parameters Menu TIME OFFSET GPS SOG/COG FILTER COMPASS SET UP LANGUAGE SIMULATOR Data Boxes Press the SELECT BOXES soft key to display the data box sub-menu. This enables you to select up to 6 data boxes that you can display on the sounder.

  • Page 48: Bearing Mode

    For monochrome displays, the normal DAY presentation displays black targets on a white background. If you select NIGHT, the pic- ture is reversed, so that white targets are shown on a black back- ground to reduce the intensity of the image. DSM250 Digital Sounder Module...

  • Page 49: Help

    Chapter 4: System Setup Help When Help is set to ON, a prompt appears when selecting a soft key or menu choice and when using the context-sensitive cursor. The help message is cleared when an action is selected. Soft Keys When the Soft Keys option is set to ON, the default soft keys are displayed if no other operation is in progress.

  • Page 50: Auto Mode

    If heading data is being taken from NMEA, but no NMEA variation is available, then variation is taken from SeaTalk If heading is taken from SeaTalk, but no SeaTalk variation is available, then variation is taken from NMEA DSM250 Digital Sounder Module...

  • Page 51: Manual Mode

    Chapter 4: System Setup Manual Mode If you select Manual mode, by pressing either of the MANUAL keys, you can specify the local variation value according to the area in which you are operating. Press the appropriate MANUAL key to adjust the variation up or down, to a maximum of 30°...
  • Page 52 Sentence The changes do not take effect until after ENTER is pressed. Con- sult your NMEA instrumentation documentation to determine which strings should remain ON. DSM250 Digital Sounder Module Meaning Autopilot Sentence “B” Bearing & Distance to Waypoint Bearing & Distance to Waypoint – Rhumb Line...

  • Page 53: Cursor Echo

    Chapter 4: System Setup Note: The DSM250 outputs the same depth value for DBT and DPT, regardless of the Depth Offset value in Sonar Setup. Cursor Echo You can set up an integrated system so that radar and chartplotter displays connected via SeaTalk can display each other’s cursors.

  • Page 54: Gps Sog/Cog Filter

    Select the SOG/COG filter setting as required. This can be set to HIGH, MEDIUM or LOW. Compass Set Up This option is used to calibrate a Raymarine heading sensor such as the Pathfinder Smart Heading System. Controls are provided for LINEARISE COMPASS, which detects and corrects for heading errors caused by metal objects, and ALIGN HEADING, which matches the displayed heading to a known heading or transit.

  • Page 55: Sonar Set Up Parameters

    Chapter 4: System Setup • Radar provides simulated radar picture, with example targets. The picture does not change if you change the range, although the range rings are adjusted (see radar documentation). • Both provides simulated data and radar picture. When the simulator is switched on, a SIMULATOR data box is dis- played during operation, showing the simulation selected.

  • Page 56: Target Depth Id

    Sonar HSB Mode Note: This parameter only pertains when the display to which you are outputting DSM250 image data is a PLUS fishfinder. If your dis- play is a PLUS radar or chartplotter display, the REPEATER setting is automatically selected and cannot be changed.

  • Page 57: Depth Offset

    Chapter 4: System Setup This is not an issue when showing DSM250 data on a radar or chart display because these units can never be a sonar master. In this case, the DSM250 is automatically set as the master and the display unit as the repeater.

  • Page 58: Speed Calibrate

    Speed Calibrate If the transducer is equipped with a speed paddle wheel, the DSM250 calculates the speed of the boat through the water. The speed calibrate option enables you to adjust the displayed speed so that it matches your actual speed through the water. You can adjust the displayed speed from 1% to 200%.

  • Page 59: Sonar Simulator

    MASTER SW VERSION displays the software version and product type of the master unit, which under most circumstances would be the DSM250. MASTER S/N displays the serial number of the master unit, which under normal circumstances would be the DSM250. 4-17...
  • Page 60 4-18 DSM250 Digital Sounder Module...

  • Page 61: Chapter 5: Basic Display Controls

    Note: All settings described in this chapter are retained when the unit is powered off. However, there is a one-minute delay from the time you make the setting change to when the DSM250 places it in memo- ry. If you power down the sounder less than one minute after making a change, the setting is lost.

  • Page 62: Brightness And Color Settings (Color Displays)

    You can choose the background color and the color threshold; color threshold lets you determine which echoes are displayed, by selecting the minimum color strength the sounder uses. POWER LIGHT CONTRAST DSM250 Digital Sounder Module WHT LINE OFF ON D4895-2...

  • Page 63: Adjusting The Brightness

    Chapter 5: Basic Display Controls You can also select the color set, for a bold or soft color palette. The brightness of the screen can be adjusted over a wide range, suitable for viewing in daylight (high brightness level) or at night (low brightness level).

  • Page 64: Selecting The Background Color

    The color threshold you select is used on all the sounder windows (scrolling bottom, Zoom, Bottom Lock, and A-Scope). ➤ To change the color threshold: 1. Press the MULTI key to display the soft key controls. MULTI 2. Press the COLOR SETTINGS soft key. COLOR SETTINGS DSM250 Digital Sounder Module...

  • Page 65: Controlling The Display

    Chapter 5: Basic Display Controls 3. Press the COLOR THRESH soft key. The color threshold soft keys are displayed below color indicator showing the available echo colors. COLOR The weakest color is at the bottom of the indicator, the strongest THRESH color at the top;...

  • Page 66: Selecting The Display Mode

    You can also set Windows On to split the display into two half- SPLIT HOR VER screen windows (horizontal or vertical) to show supplementary data, or to display sonar and chart or radar simultaneously. Split screen options are described in the following sections. DSM250 Digital Sounder Module...
  • Page 67 Chapter 5: Basic Display Controls "DISPLAY" TO SELECT FULL SCREEN OPTION SOFTKEYS TO SELECT WINDOW OPTION CURSOR 099 o 2.410 RADAR WINDOWS WINDOWS OFF ON OFF ON Figure 5-1: Horizontal Half -Screen Window Options Using horizontal half screens, the main operating mode is dis- played in the upper window;...
  • Page 68 Note: You can use the SCREEN soft key in chart mode to switch the data boxes on. They are displayed in the upper window. Figure 5-2 and Figure 5-3 show the half-screen horizontal win- dows (in Sonar mode). DSM250 Digital Sounder Module SELECT SPLIT WINDOWS...

  • Page 69: Chart Window

    Chapter 5: Basic Display Controls CDI Window AUTO GCRZFH STEER PORT WAYPOINT 001 FREQUENCY ZOOM WINDOWS WINDOWS OFF ON OFF ON Depth/Temperature Window AUTO GCRZFH TEMPERATURE (°C) 26.4 26.0 25.6 25.2 24.8 24.4 24.0 23.6 23.2 FREQUENCY ZOOM WINDOWS OFF ON Figure 5-2: 50kHz 0.28...
  • Page 70 (SOG), and depth. • Data Window C – provides waypoint range and bearing, course over ground (COG), speed over ground (SOG), and depth. 50kHz ZOOM MORE¬ SELECT SPLIT WINDOWS HOR VER D6211-1 Radar Half-Screen Window DSM250 Digital Sounder Module...
  • Page 71 SOFTKEYS TO SELECT WINDOW OPTION CURSOR 099 o 2.410 RADAR WINDOWS OFF ON Figure 5-4: Note: Receiving and displaying position data requires that a GPS is connected to your Raymarine system. AUTO GC TEMPERATURE MINUTES FREQUENCY WINDOWS OFF ON Figure 5-5: CHART SONAR...

  • Page 72: Returning To The Full-Screen Display

    (monochrome display) or red (color LCD) on the CHRT SNR label and the cursor appears in that window. 50kHz DEPTH ZOOM BTM.LOCK A-SCOPE SELECT SPLIT WINDOWS HOR VER D6209-1 Vertical Half-Screen Window C ZOOM DSM250 Digital Sounder Module MORE¬ CHRT SNR D5013-1...

  • Page 73: Display Control Functions

    Chapter 5: Basic Display Controls Alternatively, when you have both sounder and radar displayed in half-screen windows the soft key RDR SNR lets you toggle operat- ing control between the sounder and the radar window. FREQUENCY ➤ To change the active window when you are displaying the sonar/radar horizontal split window, press the RDR SNR soft key to toggle control between the sounder and radar display.

  • Page 74: Viewing Data Boxes

    Section of bottom shown at higher scroll speed Figure 5-7: DSM250 Digital Sounder Module Section of bottom shown at slower scroll speed Effect of the Scroll Speed Display shows...

  • Page 75: Selecting The Power Setting

    Chapter 5: Basic Display Controls The DSM250 defaults to manual scroll adjustment at full speed (100%). Use the trackpad to decrease the scroll speed in 10% increments down to 0% (pause). Unlike automatic adjustment, manual scroll speed is not related to boat speed over the bottom.

  • Page 76: Changing The Sounder Range

    The following range/shift values are available: Table 5-2: Range and Shift Values Feet Range Fathoms Shift Range Shift DSM250 Digital Sounder Module Meters Range Shift...
  • Page 77 Chapter 5: Basic Display Controls Table 5-2: Range and Shift Values Feet 1000 1500 2000 2500 3000 3500 4000 4500 5000 Depths greater than 3000 ft (1000 m) require a high performance transducer ➤ To adjust the range and shift values: 1.

  • Page 78: Hunt Mode

    600 W 1000 W For example, let’s say a DSM250 with a 1000 W transducer is set for auto range & auto frequency and bottom is currently detected at 500 ft using 200 kHz. The bottom signal becomes lost, so the sounder switches to Hunt mode.

  • Page 79: Selecting The Frequency

    When bottom is found, Hunt mode ceases and the sounder adjusts to the range and frequency appropriate for the new depth. While the DSM250 searches in Hunt mode, a constantly changing ‘stairstep’ pattern is displayed as the sounder switches depths and frequencies.

  • Page 80: Using Bottom Lock

    As illustrated in Figure 5-8 , the bottom is shown as a straight line. Note that some bottom features may extend above this line. The actual depth reading is given in the bottom left hand corner of the Bottom Lock display. DSM250 Digital Sounder Module...
  • Page 81 Chapter 5: Basic Display Controls Range intervals on Bottom Lock are measured up from the bottom (rather than down from the surface). Thus, the bottom is shown as zero and the top number indicates the maximum distance above the bottom being displayed. You can adjust the Bottom Lock range.

  • Page 82: Using A-Scope

    At the lower end of the window, A-Scope also dis- plays the patented Bottom Coverage width indication. 200kHz ZOOM BTM.LOCK A-SCOPE D6186-1 Bottom Lock Display with Split Windows DSM250 Digital Sounder Module...
  • Page 83 Chapter 5: Basic Display Controls ➤ To display the A-Scope image: 1. Press the A-SCOPE soft key. The display is split vertically, with the A-SCOPE A-Scope image in the right hand window and the scrolling bottom image in the left hand window. 2.

  • Page 84: Using Zoom

    Zoom Range Bar are dis- played in the upper and lower right corners of the Zoom window. 50kHz 52.3 ZOOM BTM.LOCK A-SCOPE The Three Modes of A-Scope DSM250 Digital Sounder Module Mode 3 Mode 2 52.3 52.3 A-SCOPE A-SCOPE D6189-1...
  • Page 85 Chapter 5: Basic Display Controls Zoom Cursor, controlled by trackpad Manual mode only Zoom Factor Figure 5-10: 4. Press the ZOOM AUTO MAN soft key to toggle the setting between ZOOM AUTO MAN AUTO and MAN. The automatic setting adjusts the position of the zoom window so that bottom details are always in view.
  • Page 86 6. After you have moved the Zoom Position Line to the desired posi- tion, press ENTER to reposition the zoom image, or CLEAR to cancel the operation. ENTER , return the Zoom Position Line to the opposite edge DSM250 Digital Sounder Module...
  • Page 87 Chapter 5: Basic Display Controls Zoom Position Line, move UP to lower Zoom window move DOWN to raise window Figure 5-11: Selecting Zoom automatically switches OFF Bottom Lock and A- Scope, if either of these images were being displayed. If you have split frequency selected, the selected Zoom image is displayed in both frequency windows.
  • Page 88 5-28 DSM250 Digital Sounder Module...

  • Page 89: Chapter 6: Sonar Mode Operation

    Note: The settings described in this chapter are retained when the unit is powered off. However, there is a one-minute delay from the time you change the setting to when the DSM250 places it in memory. If you power down the sounder less than one minute after making a change, the setting is lost.

  • Page 90: Fish Indications

    DSM250 Digital Sounder Module The strength of echoes is indicated by different colors (or shades of gray in monochrome displays). You can use this information to determine the size of fish and the bottom structure. Other objects in the water, such as debris and air bubbles, also return echoes;...

  • Page 91: Bottom Indications

    In Bottom lock mode the fish arches may appear distorted as the bottom topography is removed from the image. Bottom Indications The bottom usually produces a strong echo, enabling the DSM250 to display great detail. The sounder module can indicate many dif- ferent kinds of bottom conditions.
  • Page 92 Hard bottom (sand) Soft bottom (mud) Rocky bottom White line feature on: Sounder Bottom Indications DSM250 Digital Sounder Module D5016-2...

  • Page 93: Using White Line

    Chapter 6: Sonar Mode Operation Using White Line The White Line feature separates echoes from fish near the bot- tom and the bottom itself. When the White Line is switched on, the sounder displays the echoes differently. On color LCDs, the strongest echoes are displayed in the back- ground color with a thin line on top.
  • Page 94 Manual gain should be set high enough to see fish and bottom detail but without too much background noise. Generally, a high GAIN gain is used in deep and/or clear water; a low gain in shallow and/ or murky water. DSM250 Digital Sounder Module...

  • Page 95: Color Gain

    The DSM250 provides three pre-defined automatic gain settings: CRUISING is the lowest automatic gain setting. It is ideal for view-...

  • Page 96: Using Alarms

    OLD control to reduce the number of colors displayed. Use COLOR THRESHOLD with COLOR GAIN to determine how echoes are displayed. The DSM250 provides automatic or manual COLOR GAIN adjust- ment. Automatic adjustment displays colors based on current con- ditions, with as many colors as possible, while minimizing noise and clutter.

  • Page 97: External Alarms

    Chapter 6: Sonar Mode Operation Fish Alarm – If this alarm is ON the unit sounds a buzzer when- • ever it finds a fish. Different buzzer tones are used to indicate fish detected by the 50 kHz and 200 kHz frequencies. •...

  • Page 98: Using Vrm To Determine Depth & Distance From Vessel

    The VRM distance units correspond to the depth units assigned in the system set up parameters you have assigned for your display unit, as follows: FISH ALARM SHALLOW OFF ON ALARM DSM250 Digital Sounder Module DEEP ALARM D5031-1...
  • Page 99 Chapter 6: Sonar Mode Operation System Depth Unit Meters Feet Fathoms The distance-from-boat continues to update as your boat moves. However, the vertical line does not scroll with the scrolling sonar image. If the display range changes, the VRM adjusts its relative position so that it does not move out of the visible display area.

  • Page 100: Waypoints

    Note: When in chart mode, if you place a waypoint at the cursor posi- tion, it is not shown on the display in Sonar mode. If you place a waypoint at the vessel position in Sonar mode it is shown in the chart window. DSM250 Digital Sounder Module...

  • Page 101: Placing A Waypoint

    Chapter 6: Sonar Mode Operation Placing a Waypoint ➤ To access the place waypoint soft keys, press MARKS: PLACE WPT MARKS AT CURSOR ➤ To place a waypoint at the cursor position or at the vessel position: PLACE WPT 1. Press either the PLACE WPT AT CURSOR or the PLACE WPT AT VES- AT CURSOR SEL soft key.

  • Page 102: Waypoint List

    WAYPOINT LIST SYMBOL WAYPOINT 001 WAYPOINT 002 WAYPOINT 003 WAYPOINT 004 WAYPOINT 005 POSITION 50°21^966N 001°20^368W BRG _186° RNG _21.0nm TEMP DEPTH ---° DATE TIME --/--/-- GOTO EDIT MAKE NEW WAYPOINT WAYPOINT DSM250 Digital Sounder Module NAME --:--:-- WAYPOINT TRANSFER D4262-2...
  • Page 103 Chapter 6: Sonar Mode Operation Note: To obtain MOB position, you need either of the following: • Position data from a GPS or equivalent device • Heading and speed data, so that the position can be calculated by dead reckoning ➤...
  • Page 104 6-16 DSM250 Digital Sounder Module...

  • Page 105: Chapter 7: Maintenance And Problem Solving

    Check that the cable connectors are firmly attached. Cleaning Instructions Cleaning the Module The DSM250 is a sealed unit and does not require regular clean- ing. However, if you find it necessary to clean the unit, please fol- low these basic procedures: •...

  • Page 106: Cleaning The Transducer

    Raymarine equipment should be serviced only by authorized Raymarine service technicians. They will ensure that service pro- cedures and replacement parts used will not affect performance. There are no user serviceable parts in any Raymarine product. • Some products generate high voltages, so never handle the cables/connectors when power is being supplied to the equip- ment.

  • Page 107: Resetting The System

    The factory reset clears the sonar depth offset and speed and temperature calibrations. • Power-On Reset: When you turn the DSM250 off and on again, all previous settings are retained except for those listed in the fol- lowing table, which are reset to the factory default:...

  • Page 108: Problem Solving

    New soft keys appear: ARE YOU SURE? YES. NO. Pressing NO returns you to the Sonar Setup Menu. Pressing YES causes the DSM250 to reset all settings to factory default: i. The power on the DSM250 cycles OFF and ON.

  • Page 109: Common Problems And Their Solutions

    Chapter 7: Maintenance and Problem Solving Common Problems and Their Solutions Table 7-2: Common Sounder Problems Problem Display does not function Display “freezes” Sounder does not display fish Sounder does not see bottom or fish Sonar display is unreli- able at high boat speeds Sounder displays a lot of background noise Sounder speed or log...

  • Page 110: Status Led

    Status LED The LED on the connector panel provides valuable information on the status of your DSM250. The LED blinks green while the module is operating normally. If the unit detects a problem, the LED blinks amber to indicate a warning or red for an error. The number of times the LED blinks is a code representing the nature of the problem.

  • Page 111: How To Contact Raymarine

    Search questions and answers by product, category, key- words, or phrases. If the answer you are seeking is not available, click the Ask Raymarine tab to submit your own question to our technical support staff, who will reply to you by e-mail.

  • Page 112: Product Repair And Service

    Technical Service is available Monday through Friday 4:00 AM to 6:00 PM Eastern Time. Please have the Raymarine item or part number ready when call- ing if placing an order. If you are not sure which item is appropri- ate for your unit, you should first contact the Technical Support Department to verify your requirements: 800-539-5539 ext.
  • Page 113 Raymarine dealer. Please refer to the lists of compo- nent part numbers and optional accessories in the Installation chapter of this manual and have the Raymarine part number ready when speaking with your dealer. If you are uncertain about what item to choose for your Rayma- rine unit, please contact our Customer Services Department prior to placing your order.

  • Page 114: Worldwide Support

    7-10 DSM250 Digital Sounder Module Worldwide Support Please contact the authorized distributor in the country.

  • Page 115: Appendix: Specifications

    Appendix: Specifications Appendix: Specifications General Approvals: CE - conform to Size: Weight: Mounting Power: Voltage Current Fuse Environmental: Operating Range: Storage Range: Humidity: Connectors Interfaces Sounder Features Output Power: Frequency Pulse Length: Max. Trans- mit Rate: Depth: Transducer: 89/336/EEC (EMC), EN60945:1997 10.76"...
  • Page 116 DSM250 Digital Sounder Module...
  • Page 117 Index Index Accessories 2-4 Alarms 6-8 Deep Water 6-9 External 6-9 Fish Alarm 6-9 MOB 6-15 Shallow Water 6-9 ALARMS Key 6-8, 6-10 A-Scope 1-8, 5-22 Auto Update 3-2 Autopilot Pop Up 4-3, 4-7 Background Color 5-4 BDI Window Options 1-7, 5-7, 5-9 Bearing Mode 4-3, 4-6 Bottom Indications 6-3 Bottom Lock 1-8, 5-20...
  • Page 118 Operating Modes 1-7 Selecting 3-2, 3-3, 5-6 Sonar Options 1-8 DISPLAY Key 1-7, 3-3, 5-6, 5-8, 5-12 Distance Determining Using VRM 6-10 DSM250 Digital Sounder Module Echoes 1-5, 5-2 Color Threshold 5-4 Strength 6-2 Conformance 2-15 Installation Guidelines 2-2 Servicing & Safety Guidelines 7-2...
  • Page 119 Index In-hull Transducer 1-5 Installation Cable Runs 2-2, 2-5 EMC Conformance 2-15 EMC Guidelines 2-4 Location 2-2, 2-4 Installation Guidelines EMC 2-2 Intended Use iii Key Beep 4-3, 4-7 Keys Lighting 5-1, 5-3 Soft 4-3, 4-7 Language 4-5, 4-12 Status 3-1, 7-6 Lighting Control Display 5-1, 5-3 Key 5-1, 5-3...
  • Page 120 Functions 1-9 HSB Mode 4-13, 4-14 Mode 1-7, 5-7 Full Screen 1-7 Set Up 4-1, 4-13 DSM250 Digital Sounder Module Simulator 3-5, 3-6, 4-13, 4-17, 5-1 Switching Control Between Sound- er and Display 5-12 Window Options 1-7, 5-7, 5-9, 5-11...
  • Page 121 Index Connections 2-9, 2-13 Frequency 5-19, 6-3 In-hull 1-5 Thru-hull 1-5 Transom Mount 1-5 Transom Mount Transducer 1-5 Units 4-4, 4-8 Updating Software 3-2 Variation Source 4-4, 4-8 Vertical Half-Screen Windows 1-7, 5-6, 5-10 VMG Data Box 4-3 VRM/EBL Key 6-10 Warning codes 3-1, 7-6 Warranty v Waypoint...
  • Page 122 DSM250 Digital Sounder Module...

Table of Contents

Save PDF