Furuno CH-250 manual Foreword, Features

FOREWORD

Thank you for purchasing the CH-250 Color LCD Searchlight Sonar. We are confident you will discover why FURUNO has become synonymous with quality and reliability.

Dedicated in the design and manufacture of marine electronics equipment for half a century, FURUNO Electric Company has gained an unrivaled reputation as a world leader in the industry. This is the result of our technical excellence as well as our worldwide distribution and service network.

Please carefully read and follow the safety information and operating and maintenance instructions set forth in this manual before attempting to operate the equipment and conduct any maintenance. Your sonar will perform to the utmost of its ability only if it is operated and maintained in accordance with the correct procedures.

Features

The CH-250 displays underwater objects on a bright 10.4” color LCD display, in 8 or 16 colors according to received echo strengths. Operating frequency is selectable among 60, 88 and 150 kHz. Eight operating modes provide information for virtually any fishing application.

The main features of the CH-250 are

•High definition active matrix color LCD.

•Target lock on a fish school or stationary position (reef, etc.).

•Audible detection of echoes frees the operator from continuous watch of the display.

•Compact display and hull units permit installation where space is limited.

•Interface IF-8000 permits use of a commercial monitor instead of standard display unit.

•Automatic pulselength switching for optimum performance in short and long ranges.

•Eight operational modes: Horizontal, Expanded Horizontal, Vertical Fan, Echo Sounder, Horizontal/Vertical Fan, History, Video Plotter and Strata.

•Automatic retraction of transducer at operator-selected ship’s speed between 5 and 15 knots.

•CUSTOM MODE keys provide one-touch setup of the equipment or short-cut key function.

•Tracing of ship’s track with connection of position-fixing equipment (GPS, etc.).

•One of the echo strengths may be displayed in white to enhance the specific echo level.

•The “Vertical Search” feature provides a cross-sectional view of the vertical plane, which is useful for evaluating fish school concentration.

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