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Depth TH 52 
- Transducer - 
Installation and Operation Manual 
Installation and Operation Manual 
English 
 
English                                                                                                                                                                                                                                                                                                                                                                                             
                    
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                          DEPTH TH52  CONTENTS:  1 Applications................................................................................4  2 Tools and Materials Needed......................................................4  3 Mounting Location .....................................................................5  3.1 Acoustic Noise...............................................................................................5  3.2 Placement........................................................................
                    
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                          DEPTH TH52    INSTALLATION INSTRUCTIONS  Thru-Hull Depth Transducer  Low Profile, Flush, and Retractable Models      IMPORTANT: Please read these instructions completely before proceeding   with the installation. These directions supersede any other instructions in  your instrument manual if they differ.        WARNING: NEVER USE SOLVENTS!  Certain cleaners, fuel, paints, sealants, and other products may contain strong solvents,  such as acetone, which attack many plastics greatly reducing the
                    
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                          DEPTH TH52  3 Mounting Location  3.1 Acoustic Noise  Acoustic noise is always present and these sound waves can interfere with the  operation of the transducer. Background noise from sources such as: waves, fish, and  other vessels cannot be controlled. However, carefully selecting the transducer  mounting location can minimize the affect of vessel generated noise from the  propeller(s) and shaft(s), other machinery, and other echosounders. The lower the  noise level, the higher the echosounde
                    
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                          DEPTH TH52      3.3 Boat Types   (see Figure 1)  • Displacement hull powerboat—Locate 1/3 aft LWL and 150–300mm (6–12") off  the centerline on the side of the hull where the propeller is moving downward.  • Planing hull powerboat—Mount well aft, on or near the centerline, and well  inboard of the first set of lifting strakes to insure that the transducer is in contact  with the water at high speeds. Mount on the side of the hull where the propeller is  moving downward.  Outboard and I/O—Mount 
                    
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                          DEPTH TH52    4 Installation  Cored fiberglass hull—Follow separate instructions on page 4.    4.1 Hole Drilling  Warning: Always wear safety goggles and a dust mask.    1. Drill a 3 mm or 1/8" pilot hole from inside the hull. If there is a rib, strut, or other hull  irregularity near the selected mounting location, drill from the outside.     Note: If the pilot hole is drilled in the wrong location, drill a second hole in a better  location. Apply masking tape to the outside of the hull over 
                    
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                          DEPTH TH52      4.2 Bedding  Caution: Never pull, carry, or hold the transducer by its cable; this may sever internal  connections.    1. Remove the hull nut and any washer (see Figure 2). Also remove the cap nut and  the transducer insert.   2. Apply a 2mm (1/16") thick layer of sealant around the lip of the housing that  contacts the hull and up the sidewall of the housing, 6 mm (1/4") higher than the  combined thickness of the hull, washer(s), and the hull nut. This will ensure there is  se
                    
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                          DEPTH TH52  tighten only. Do not over tighten.    Warning: Always attach the safety wire to prevent the insert from backing out in  the unlikely event that the cap nut fails or is screwed on incorrectly.    6. Attach the safety wire. Attach the safety wire to one eye in the hull nut. Lead the  wire in a counterclockwise direction and thread it through one eye in the cap nut,  the pull ring, the second eye in the cap nut, and the second eye in the hull nut.  Twist the wire securely to itself.  
                    
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                          DEPTH TH52      5.3 Installation in a Cored Fiberglass Hull  The core (wood or foam) must be cut and sealed carefully. The core must be protected  from water seepage, and the hull must be reinforced to prevent it from crushing under  the hull nut allowing the housing to become loose.    Warning: Always wear safety goggles and a dust mask.    1. Drill a 3 mm or 1/8" pilot hole from inside the hull (see Figure 3). If there is a rib,  strut, or other hull irregularity near the selected mounting l
                    
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                          DEPTH TH52      6 CONNECTION TO INSTRUMENT/CONTACTS    The depth transducer connects to the FI-30 Server or directly.      The transducer cable is clearly marked with No 2 and the colours will correspond to  input screw terminal on the Server.    IMPORTANT! DO NOT CUT OR EXTEND THE 8 M TRANSDUCER CABLE!    7 Calibration  Calibration is carried out in the Multi Control instrument (see manual).      8 Maintenance  8.1 Antifouling Paint  Surfaces exposed to salt water must be coated with anti-fou
                    
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                          DEPTH TH52      9 TECHNICAL DATA    Dimensions Transducer: 51 x 86 mm (1 5/8” x 3 3/8”)  Transducer cable: 8 m (9.9 ft + 26.2 ft)  Power supply: 12V DC (10-16V)  Power consumption: 0.2 W  Depth range: 0.8 - 150 m (3 - 450 ft) at    speed up to 30 knots.  Accuracy: ± 0.1 %  Type of transducer: Piezocrystal 200 kHz  Temperature range: Operation -10°C to + 70°C   Storage -35°C to +85°C    The depth measuring is based on the echos speed in water which is 1.463 m/sec.  12                           
                    
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                          DEPTH TH52      Copyright ©:  Nexus Marine AB  Kuskvägen 4, 191 62 Sollentuna, Sweden  Tel: +46 -(0) 8 – 506 939 00. Fax: +46 -(0) 8 -506 939 01  www.nexusmarine.se  17    22418-1 Edition 1