User manual FURUNO DFF1 REFERENCE GUIDE

[. . . ] NETWORK SOUNDER DFF1 IMPORTANT NOTICES · The descriptions in this manual are intended for readers with a good knowledge of English. · No part of this manual may be copied or reproduced without written permission. · If this manual is lost or worn, contact your dealer about replacement. · The contents of this manual and equipment specifications are subject to change without notice. [. . . ] Install the transducer parallel with water surface; not flush with hull. If the boat is placed on a trailer care must be taken not to damage the transducer when the boat is hauled out of the water and put on the trailer. M5x20 M5x20 No. 2 M5x14 Transom mount transducer, projecting from hull 1. 4. 3 Transducer preparation Before putting the boat in water, wipe the face of the transducer thoroughly with a detergent liquid soap. This will lessen the time necessary for the transducer to have good contact with the water. Otherwise the time required for complete "saturation" will be lengthened and performance will be reduced. Performance will be affected. 7 1. 5 1. 5. 1 Inside Hull Mount This mounting method is available for FRP boats. Necessary tools You will need the following tools: · Sandpaper (#100) · Silicone sealant · Silicone grease 1. 5. 2 Remarks on installation · Turn off the engine and anchor the boat while installing the equipment. · Install the transducer in the engine room. 1. 5. 3 Mounting location Keep the following points in mind when selecting a mounting location: · The mounting location should be where the hull is of single-hull thickness and is void of air or flotation materials other than solid fiberglass between the transducer face and the water. · Do not place the transducer over hull struts or ribs which run under the hull. · Avoid a location where the rising angle of the hull exceeds 15°, to minimize the effect of the boat's rolling. · You will finalize the mounting location through some trial and error. The procedure for this is shown later. Center line 50cm 50cm 1/2 1/3 15cm 15cm Mounting location for transducer Inside-hull transducer mounting location 8 1. 5. 4 Installation procedure 1. Also, roughen the inside of the hull where the transducer is to be mounted. Coat the transducer face and mounting location with silicone sealant. Transducer face Silicone sealant Coating the transducer face with silicone sealant 3. Press the transducer firmly down on the hull and gently twist it back and forth to remove any air which may be trapped in the silicone sealant. Twist to squeeze out air bubbles. Silicone sealant Hull Attaching transducer to hull with silicone sealant 4. Connect this unit to NavNet equipment and turn on the NavNet equipment. Set up the NavNet equipment to show "single frequency display". Case 1 The installation is proper if the bottom echo is displayed in red and the depth indication is shown. Case 2 The bottom echo is not displayed in red when ultrasound attenuation is great. Insert a knife or wooden stick under transducer to remove it 3) Repeat steps 1 thru 7. Fix the transducer. 9 1. 6 Optional Water Temperature Sensor ST-02MSB, ST-02PSB Select a suitable mounting location considering the following points: · Select a mid-boat flat position. · Select a place in the forward direction viewing from the drain hole, to allow for circulation of cooling water. Face the notch on the sensor toward boat's bow and tighten the flange. [. . . ] Taping Vinyl tube Shield Fabrication of transducer cable 21 This page is intentionally left blank. 22 3. INITIAL SETTINGS, OPERATION WARNING Do not open the equipment unless totally familiar with electrical circuits and service manual. Only qualified personnel should work inside the equipment. 3. 1 Selecting the Transmission Power The default transmission power is 600 W. If the 1 kW transducer is installed, turn on the #1 segment of DIP SW S2 on the pcb 02P6353 inside the network sounder. Detach the cover of the DFF1; grasp the cover at opposing sides with hands, pull outward slightly and lift up to detach. [. . . ]