User manual FURUNO CI-80 OPERATORS MANUAL

[. . . ] DOPPLER SONAR CURRENT INDICATOR CI-80 C Yo u r L o c a l A g e n t / D e a l e r 9-52, Ashihara-cho, Nishinomiya, Japan Te l e p h o n e : Te l e f a x : 0 7 9 8 - 6 5 - 2 111 0798-65-4200 All rights reserved. Printed in Japan FIRST EDITION F : : FEB. OME-72390 (DAMI) CI-80 SAFETY INSTRUCTIONS WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment. Only qualified personnel should work inside the equipment. Immediately turn off the power at the switchboard if water leaks into the equipment or something is dropped in the equipment. [. . . ] If speed data varies greatly increase speed averaging. Speed averaging is available in times of 15 sec. , 30 sec. , 60 sec. , and 90 sec. The default setting is 15 sec. , which is suitable for most conditions. TIDE AVERAGE: Direction and speed of a tide changes with time, place and depth. Therefore it is important that the current indicator not respond to quickly or too slowly to tide movement. Tide averaging time is available between 0 and 5 minutes in the nearest minute. ("0" is for use of raw tide data. ) In most cases "2 min. " provides excellent results. Too high a setting may prevent detection of rapid changes in tide movement, such as a current rip. WT SPD DEPTH: Sets measuring depth of water speed in the water tracking mode. The default setting is two meters, and it is suitable for most conditions. Change the setting when water tracking speed display becomes unstable (due to air bubbles, etc. ), or to measure water tracking speed at a given depth. Figure 19 AVR menu 18 OPERATION Basic Operating Procedure Turning on the system 1. The display unit conducts a check of the system, displaying the results about 40 seconds after turning on the power. Figure 20 Display unit and transceiver unit Selecting operating mode Press the MODE key to select operating mode among water tracking, ground tracking, or automatic selection. Selected mode appears at top right corner on the display. N: Nav Figure 21 Location of operating mode indication on echo display 19 Ground Tracking Mode: Shows absolute ship and tide movements based on ground. (Bottom echo required. ) Water Tracking Mode: Shows movements of ship and tide relative to near-surface water. Nav-aided Mode: Shows ship's movement measured by the external navigation equipment, and the tide movements based on the nav speed data. Auto Tracking Mode: Uses ground tracking mode when bottom echo is available. Switches to water tracking mode (or nav-aided mode) when bottom echo is lost. Bottom echo is continuously searched for, and if re-acquired the ground tracking mode is restored. Setting measuring depths 1. Note that measuring depth can also be set on the echo display. See next page for further details. 20 Setting tide differential layer 1. / to select REF TIDE Figure 22 How to set tide differential Turning off the power Press the power switch on the display unit. 21 Setting Tide Measuring Depths on the Echo Display Earlier you learned how to set tide measuring depths on the DEP menu. Measuring depths can also be set directly on the echo display. Selecting a layer, setting depth 1. [. . . ] Press / to select DEMONSTRATION. to select ON. WATER SPEED T/D NAV *1 3. The echo display appears and the demonstration begins. "DEMO DATA OUTPUTTING" appears while the demonstration display is on. All data shown is for purpose of demonstration; it is not actual data. [. . . ]