Please read this supplement to the CH270 Manual first. CH270 Searchlight Sonar Important Technical Installation Information The following checklist and information sheets are provided to help you efficiently install your CH270 sonar. If this is a high speed vessel, please pay careful attention to the tube length and fairing instructions.
CH270 Installation Supplement Contents The following checklist and information sheets are provided to help you properly and efficiently install your CH270 sonar. If this is a high speed vessel, please pay careful attention to the tube length and fairing instructions. Page 1-2 Overall installation checklist - Please return a completed copy to Furuno U.S.A.
CH270 Installation Check Sheet Vessel Information Vessel Name: Type: Length: Operating Speed: CH270 System Information CH270 Model: Serial Number: Shaft Travel: System Input Voltage: Use: Registry: Hull Type: Dealer Information Dealer Name: Address: Installed By: Date: City, State, Zip: Location: Standard System – MU100C Display Check List Are all cables and connections tight & strapped? Is NMEA data connected and activated? What NMEA devices are connected: Has CH252 control head installation & operati
CH270 Installation Check Sheet - continued CH181 or CH184 Hull Unit Check List Check and note actual input voltage: Are all cables and connections tight and strapped? Is the unit grounded properly? Has the soundome been lowered and raised by hand? Have the shaft guides been adjusted for 0.
Sonar tube fairings for high speed vessels Today, many CH270 hull tubes have to be placed in the forward part of the vessel. This location almost guarantees underway turbulence.Although a poor location, space limitations usually make it the only site available for the hull tube and hoist.As the installation manual shows, the best location is always one third to one half way back from the bow.
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Please confirm that the narrowest gap between the tank guides and the retraction tube wall is 0.5mm. Adjust if necessary.
Motion Sensors, Inclinometers and Longer Interconnect Cables This valuable accessory unit must be mounted correctly to obtain any benefit from it: a) Select a mounting location that is dry and vibration free b) The selected location should be as close to the sonar hoist unit as possible c) Mount the unit level (only compensating for normal vessel trim) d) Line the unit up "fore and aft" accurately e) Mount the unit "right side up" only If a longer interconnect cable assembly is required, the following optio
Checking Soundome When In Dry Dock When the vessel is dry-docked, check for any signs of corrosion on the Soundome assembly. Find the reason for the corrosion and as necessary attach a zinc plate to the hull unit as an anticorrosion measure. The soundome cover may be cleaned with a household plastic scouring pad, such as “Scotch Brite” pads. Please feel free to call us at (360) 834-9300 or visit us on the web at www.Furuno.com if you have any additional questions.
