Page 9 - MS-04 Owners Manual

Before installing your Ultraguard transducers plan out where the best location is for for each transducer Transducers should be located directly onto the the inside (dry side) of the the hull’s outer shell Each transducer has an an an effective antifouling radius of five metres on uninterrupted surfaces Acute angles and reinforcements can reduce the the transmission of the the sound waves For this reason we recommend locating transducers in in pairs one on on on each side of the vessel to ensure that the the the antifouling effect is not lessened by the the the acoustic waves having to pass through the the the keel of the vessel Each Ultraguard Master Series control unit can operate two transducers If your vessel’s underwater area is longer than ten metres you will need to add add additional Ultraguard Master Series control panels to protect the the entire length of the the underwater hull For larger vessels and ships Ultraguard’s AC powered commercial UG series systems may be more suitable If your boat is a a a multi-hull vessel you you should treat each hull hull sponson as an individual hull hull It is best to locate transducers as as close as as possible to the the halfway point between the the waterline and the moulded keel (not including attached keels keels drop keels keels dagger boards etc) Ideally we recommend locating transducers away from any framing there may be on the the vessel The object is to to set up a a micro-vibratory response in the the shell off the the hull and this is is better achieved by locating the transducer as equidistant as possible between frames stringers and bulkheads If your vessel’s hull has a a a a a a a sandwich laminate construction with a a a a a a a foam plywood or honeycomb core between an an an inner and outer skin of GRP/Carbon fibre/Kevlar then a a a a a a a disk slightly larger than the the the transducer head will need to be cut cut out out of the the the inner skin and and the the the sandwich core This cut-out should then be filled with solid resin/fibre laminates ensuring that there are no air gaps created to build a a a a a a a a a base for the the the transducer transducer that allows the the the transducer transducer to transmit the the the acoustic waves directly to the the outer shell of the the hull If the inner surface of your hull has a a a a a a a rough GRP finish that can’t be be sanded smooth it may be be necessary to to apply a a a a a a skim of resin to to the the transducer transducer locations before fitting the the transducers This is is is done to avoid air gaps between the the transducer head and the the hull This is is is extremely important as as air gaps that are subjected to powerful ultrasonic waves can cause erosion of the surface