User manual RAYMARINE DSM25 DIGITAL SOUNDER MODULE (FOR A65)

[. . . ] DSM25 Digital Sounder Module Owner's Handbook Document number: 81254-2 Date: March 2006 Trademarks and registered trademarks Raymarine is a registered trademark of Raymarine plc. All other product names are trademarks or registered trademarks of their respective owners. Contents of this handbook © Raymarine 2006. 3 Contents Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Safety Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The DSM25 scans a wide area and penetrates water well, so is good for use in deep water. The DSM scans a narrower area, but produces a more detailed view so is good for finding fish that are near the bottom or close together. This setting displays separate screens for both 50 and 200kHz. The scrolling bottom display is split vertically; the left half shows the 200 kHz detailed view and the right half shows the 50 kHz image. To change the current frequency setting to AUTO mode: 1. Press FREQUENCY until AUTO is highlighted. The SELECTED FREQ soft key is grayed out. Press CANCEL or ENTER to return to the default display. 32 DSM25 Owner's Handbook To change the frequency to a manual setting: 1. Press FREQUENCY until MAN is highlighted. The SELECTED FREQ soft key is no longer grayed out. Toggle the SELECTED FREQ key until the desired setting is highlighted: · 200. The scrolling bottom is displayed using the selected frequency. The scrolling bottom is displayed using the selected frequency. Both frequencies are displayed simultaneously in split windows. Press CANCEL or ENTER to return to the default display. The default setting is AUTO. Power Settings The POWER control provides adjustment of the transducer signal. When AUTO is selected (default), the DSM automatically determines the required power setting based on the current depth, speed, and (bottom) signal strength. If, however, you wish to manually adjust the power to suit current conditions, you can adjust the power level between 0 and 100%, in 1% increments. LOWER power levels are normally used in depth ranges less than 8 ft. (2. 4 m) and HIGHER power levels are typically selected for depths greater than 12 ft. If MAN mode is set the power adjustment slider is displayed. Use the rotary knob to adjust the power value. [. . . ] A solid red LED (not blinking) indicates a fatal error condition. If the event of a fatal error, the system will power cycle to attempt to self-correct the condition. If the condition persists, please contact Raymarine Customer Service. 5. 4 How to Contact Raymarine On the Internet Visit the Raymarine World Wide Web site for the latest information on Raymarine electronic equipment and systems at: www. raymarine. com Customer Support Navigate to the Customer Support page for links to: · · · · · Finding Factory Service locations and Authorized Dealers near you Registering your Raymarine products Accessing handbooks in Adobe Acrobat format Downloading RayTech software updates Accessing the Raymarine solution database Clicking the Find Answers link routes you to our solution database. Search questions and answers by product, category, keywords, or phrases. [. . . ]