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Installation Guide for AIRMAR models including: TM258, TM260, TM185HW, TM185M, TM265LH, TM265LM, TM275LHW, TM258 Sealcast Depth Transducer with Temperature Sensor, TM258, Sealcast Depth Transducer with Temperature Sensor, Transducer with Temperature Sensor, Temperature Sensor
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Mounting the transducer on the side of the transom where the propeller blades are moving downward is preferred (Figure 1). • Mount the transducer as close to ...
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DocumentDocumentOWNER'S GUIDE & INSTALLATION INSTRUCTIONS 11/16/20 17-299-02-rev.9 D-17-299-02-rev.9 Transom Mount: 1kW with Release Bracket SealcastTM Depth Transducer with Temperature Sensor Models:TM258, TM260 Chirp Models:TM185HW, TM185M, TM265LH, TM265LM, TM275LHW Patent http://www.airmar.com/patent.html Follow the precautions below for optimal product performance and to reduce the risk of property damage, personal injury, and/or death. WARNING: Always wear safety glasses, a dust mask, and ear protection when installing. WARNING: When the boat is placed in the water, immediately check for leaks around the screws and any other holes drilled in the hull. CAUTION: Chirp transducer--Always operate the transducer in water. Operating in air will allow the transducer to overheat resulting in failure. CAUTION: Never pull, carry, or hold the transducer by the cable as this may sever internal connections. CAUTION: Never strike the transducer to release it. When mounted on the bracket, remove the transducer by removing the locking pin and hinge pin. CAUTION: The bracket protects the transducer from frontal impact only. CAUTION: Never use solvents. Cleaner, fuel, sealant, paint and other products may contain solvents that can damage plastic parts, especially the transducer's face. IMPORTANT: Please read the instructions completely before proceeding with the installation. These instructions supersede any other instructions in your instrument manual if they differ. Record the information found on the cable tag for future reference. Part No.________________ Date___________ Frequency________ kHz TM260 bracket with shims (operational position shown) Applications · Recommended for outboard and inboard/outboard sport fishing powerboats 10m (32') and up · Not recommended for boats with inboard engine(s) · Not recommended for a stepped hull · Adjusts to transom angles from 321 · Vertically orients sound beam on hull with deadrise angle up to 28° · Good operation up to 30kn (35MPH) Mounting Location Guidelines CAUTION: Do not mount the transducer in line with or near water intake or discharge openings or behind strakes, fittings, or hull irregularities that may disturb the water flow. CAUTION: Do not mount the transducer in a location where the boat may be supported during trailering, launching, hauling, or storage. · For best performance, the transducer's face must be in contact with smooth water. To identify an area of "clean" water, observe the flow off the transom while the boat is underway. · Allow vertical space above the bracket for it to release and rotate the transducer upward. · Mounting the transducer on the side of the transom where the propeller blades are moving downward is preferred (Figure 1). · Mount the transducer as close to the centerline (keel) of the boat as possible to ensure the transducer's face remains in the water when the boat is turning. However, be sure it is a minimum of 15 cm (6") beyond the swing radius of the propeller, so the water passing under the transducer does not cause a flow disturbance to the propeller. Tools & Materials Safety glasses Dust mask Ear protection Angle finder Masking tape (some installations) Pencil Electric drill Drill bits and hole saws: Bracket holes 5mm, #4, or 7/32" Transom hole (optional) 2mm or 1/16" larger than connector diameter Cable clamp holes 3mm or 1/8" Marine sealant (suitable for below waterline) Socket wrench Straight edge Small screwdriver Grommet(s) (some installations) Cable ties Water-based anti-fouling coating (mandatory in salt water) NOTE: The side of the transom where propeller blades are moving downward is preferred. hull projection 03mm (01/8") parallel to waterline 15cm (6") minimum beyond swing radius Figure 1. Mounting location on single drive boat Copyright © 2009 - 2019 Airmar Technology Corp. vertical space TM185HW, TM185M, TM258: 244mm (9-3/4") TM260, TM265, TM275LHW: 260mm (10-1/4") Figure 2. Stepped transom: vertical space required Copyright © 2009 - 2019 Airmar Technology Corp. Boat Types · Single drive--Mount a minimum of 15cm (6") beyond the swing radius of the propeller (Figure 1). · Twin drive--Mount between the drives a minimum of 15cm (6") beyond the swing radius of the propeller. · Trim tabs--Mount inside the trim tab, space permitting. · Stepped transom--Mount the transducer on the lowest step being sure there is enough vertical space above the bracket for it to release and rotate the transducer upward (Figure 2). Installation Assembling the Transducer & Bracket 1. Thread the cable through the large hole in the transducer support (Figure 3). 2. Fasten the support to the transducer using the three sockethead-cap screws and washers supplied. Tighten the screws with the 3/16" Allen wrench supplied. 3. Attach a safety ring to one end of each pin (Figure 4). 4. While holding the transducer assembly against the bracket, insert a pin through the upper hole in the bracket and the support. Slide the spacer onto the pin and push it through the remaining hole in the support and the bracket. Attach a second safety ring. This pin will function as a hinge when the transducer is released. 5. Slide a washer onto the remaining pin. Push it through the lower hole in the bracket, slide it along the channel in the support, and through the second hole in the bracket. Slide the second washer onto the free end of the pin and attach the second safety ring. This will function as the locking pin to hold the transducer in the operational position when underway. Compensating for Transom Angle: Shims For the best performance, the transducer beam must be aimed straight at the bottom. Since the transom of most boats is angled, the bracket must compensate for it. Measure the transom angle of the boat with an angle finder. · Standard transom (12 transom angle)--The bracket is designed for a standard 12 transom angle. No shim is needed for this installation. If your boat is capable of speeds above 20kn (28MPH), install the bracket with one 3 shim, taper down. This will ensure that the transducer is in contact with the water at high speeds. · Using shims--The bracket is supplied with three shims; each one has a 3 angle. Up to three shims can be combined for a maximum of 9. The shims are designed to mate together. Two bosses on the face fit into recesses in the back of another shim or the holes in the bracket. - Transom angles greater than 12--Add the appropriate number of shims with the taper up to the 12 bracket angle. - Transom angles less than 12--To reduce the bracket's 12 angle, group the appropriate number of shims with the taper down. · If you are unsure about using the shim(s), experiment with them by following the instructions "Mounting & Adjusting the Bracket." Hole Drilling CAUTION: To prevent drilling too deeply, wrap masking tape around the bit 22mm (7/8") from the point. NOTE: Fiberglass hull--Minimize surface cracking by running the drill in reverse until the gelcoat is penetrated. 1. At the selected mounting location, position the assembly so the transducer projects 3mm (1/8") below the bottom edge of the transom (Figure 1). Be sure any shim(s) is in place. (You may want to tape the shim(s) to the bracket temporarily.) With the transducer in the operational position and the bracket parallel to the waterline, mark the bottom corners of the bracket. 2. Remove the transducer assembly from the bracket by removing the locking pin and the hinge pin (Figure 4). Hold the bracket with any shim(s) in place against the transom at the marked location. Draw an "X" at 12mm (1/2") from the top and the bottom of each slot (Figure 6). 3. Using a 5mm, #4, or 7/32" drill bit, drill four holes 22mm (7/8") deep at the marked locations. screw (3) washer (3) support cable spacer bracket support channel detail hinge pin transducer Figure 3. Assembling the transducer Copyright © 2009 Airmar Technology Corp. 2 transducer locking pin washer (2) safety ring (4) Figure 4. Attaching the transducer to the bracket Copyright © 2009 Airmar Technology Corp. 12 transom angle parallel May improve operation above 20kn (23MPH) one shim taper down 13 transom angle slight angle May improve operation above 20kn (23MPH) one shim taper down 9 transom angle one shim taper down parallel May improve operation above 20kn (23MPH) two shims taper down 21 transom angle three shims taper up parallel May improve operation above 20kn (23MPH) two shims taper up slight angle more angle slight angle Figure 5. Adjusting the transducer angle Copyright © 2009 Airmar Technology Corp. slight angle Mounting & Adjusting the Bracket CAUTION: Do not position the leading edge of the transducer lower than the trailing edge because aeration will occur. CAUTION: Do not position the transducer deeper in the water than necessary to avoid increasing drag, spray, and water noise and reducing boat speed. CAUTION: The stainless steel bracket must be isolated from a metal hull to prevent electrolytic corrosion. If no shim is being used, place non-metal insulating washers between the bracket and the metal hull. 1. Apply marine sealant to the threads of four of the hex-washer-head screws to prevent water seepage into the transom. Being sure any shim(s) is in place, screw the bracket to the hull using a socket wrench (Figure 4). Do not tighten the screws at this time. 2. Reinstall the transducer. While holding the transducer assembly against the bracket, insert the hinge pin through the upper hole in the bracket and the support. Slide the spacer onto the pin and push it through the remaining hole in the support and the bracket. Reattach the safety ring. 3. Slide a washer onto the locking pin. Push it through the lower hole in the bracket, slide it along the channel in the support, and through the second hole in the bracket. Slide the second washer onto the free end of the pin and reattach the safety ring. 4. With the transducer in the operational position, use a straight edge to sight the underside of the transducer relative to the underside of the hull (Figure 5). The trailing edge of the transducer should be 16mm (1/16 1/4") below the leading edge. hole (2) mate with bosses on shim NOTE: Draw an "X" at 12 mm (1/2") from the top and bottom of both slots. screw (4) stabilizing screw Figure 6. Screw locations on bracket Copyright © 2009 - 2019 Airmar Technology Corp. 5. Using the vertical adjustment space in the bracket slots, slide the assembly up or down until the bottom inside corner of the transducer projections 03mm (01/8") below the bottom of the hull (Figure 1). When you are satisfied with the position of the transducer, tighten the four bracket screws. For clear access to the screws, remove the transducer assembly from the bracket (Figure 4). When reattaching, be sure to include the spacer. Testing on the Water 1. Test the transducer at 200kHz with the engine off. 2. Become familiar with your echosounder's performance at a speed of 4kn (5 MPH). 3. Gradually increase the boat speed and observe the gradual decline of performance due to turbulent water flowing under the transducer's face. NOTE: As the speed increases the performance at 50kHz will deteriorate more rapidly because more acoustic noise is generated at low frequencies. 4. If the decline in performance is sudden (not gradual), identify the boat speed at which the onset occurred. Return the boat to this speed, then gradually increase speed while making moderate turns in both directions. 5. If the performance improves while turning to the side on which the transducer is installed, its position probably needs adjustment. The transducer is probably in turbulent or aerated water. To improve performance, try the following one at a time, in the order given, in small increments. a. Increase the transducer's angle in the water. Review "Compensating for Transom Angle: Shims" and Figure 5. b. Move the transducer deeper into the water in increments of 3mm (1/8") (Figure 1). c. Move the transducer closer to the centerline of the boat. Fill unused screw holes with marine sealant. 6. Calibration--To match the speed shown on the display to the actual speed of the boat, you may need to calibrate the instrument. Refer to your instrument owner's manual. Stabilizing the Bracket 1. Prevent the bracket from moving out of position using the remaining hex-washer-head screw. Drill the hole for the stabilizing screw through the center hole of the bracket, any shim(s), and the hull (Figure 6). 3 2. Apply marine sealant to the threads of the remaining screw to prevent water seeping into the transom. 3. Fasten the stabilizing screw into place with a socket wrench. For clear access to the screw, remove the transducer assembly from the bracket (Figure 4). When reattaching the transducer, be sure to include the spacer. Cable Routing & Connecting CAUTION: Do not remove the connector to ease cable routing. If the cable must be cut and spliced, use Airmar's splash-proof Junction Box No. 33-035 and follow the instructions provided. Removing the waterproof connector or cutting the cable, except when using a water-tight junction box, will void the sensor warranty. Route the cable over the transom for a detachable installation. For permanent mounting, route the cable through a drain hole or through a new hole drilled in the transom above the waterline. 1. If a hole must be drilled through the transom, choose a location well above the waterline (Figure 7). Check for obstructions such as trim tabs, pumps, or wiring inside the hull. Mark the location with a pencil. Drill the hole using the appropriate size bit to accommodate the connector. 2. Route the cable over or through the transom. 3. On the outside of the hull, secure the cable against the transom using the cable clamps supplied. Position one cable clamp 30cm (12") above the bracket. Mark the mounting hole with a pencil. 4. Position the second cable clamp halfway between the first clamp and the cable hole. Mark this mounting hole. 5. If a hole has been drilled through the transom, open the large slot in the transom cable cover. Position the cover over the cable where it enters the hull. Mark the two mounting holes. 6. At each of the marked locations, use a 3mm or 1/8" bit to drill a hole 10mm (3/8") deep. 7. Apply marine sealant to the threads of the #6 x 1/2" self-tapping screws to prevent water from seeping into the transom. If you have drilled a hole through the transom, apply marine sealant to the space around the cable where it passes through the transom. 8. Position the two cable clamps and fasten them in place. If used, push the cable cover over the cable and screw it in place. 9. Route the cable to the instrument being careful not to tear the cable jacket when passing it through the bulkhead(s) and other parts of the boat. Use grommet(s) to prevent chafing. To reduce electrical interference, separate the transducer cable from other electrical wiring and the engine(s). Coil any excess cable and secure it in place with cable ties to prevent damage. 10.Refer to your echosounder owner's manual to connect the transducer to the instrument. Checking for Leaks When the boat is placed in the water, immediately check for leaks around the screws and any other holes drilled in the hull. Note that very small leaks may not be readily observed. Do not leave the boat in the water unchecked for more than three hours. cable cover cable clamp 30cm (12") Figure 7. Cable routing Copyright © 2009 Airmar Technology Corp. Maintenance Anti-fouling Coating Aquatic growth can accumulate rapidly on the transducer's face reducing performance within weeks. Surfaces exposed to salt water that do not interlock must be covered with an anti-fouling coating. Use a water-based anti-fouling coating made for transducers only. Never use ketone based paint, since ketones can attack many plastics possibly damaging the transducer. Brush on anti-fouling coating every 6 months or at the beginning of each boating season. Cleaning CAUTION: Do not use a lubricant on the bracket; grit will stick to it, increasing friction and wear. Clean the sensor with a Scotch-Brite® scour pad and mild household detergent, taking care to avoid making scratches on the transducer's face. If the fouling is severe, lightly wet sand with fine grade wet/dry paper. Transducer Replacement & Parts The information needed to order a replacement transducer is printed on the cable tag. Do not remove this tag. When ordering, specify the part number, date, and frequency in kHz. For convenient reference, record this information on the top of page one. Lost, broken, and worn parts should be replaced immediately. Obtain parts from your instrument manufacturer or marine dealer. Gemeco USA Tel: 803-693-0777 Email: sales@gemeco.com Airmar EMEA Europe, Middle East, Africa Tel: +33.(0)2.23.52.06.48 Email: sales@airmar-emea.com 35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA · www.airmar.com 4 Copyright © 2009 - 2020 Airmar Technology Corp. All rights reserved. 08/25/22 Airmar Technology Corporation D-17-573-01-rev.13 17-573-01-rev.13 AVOID OVERHEATING Installation Supplement: Chirp Transducers CAUTION: Follow the instructions that came with your transducer. To install a Chirp transducer in a way other than intended by the manufacturer may lead to the transducer overheating, resulting in transducer failure. Due to the nature of Chirp technology, Chirp transducers generate more heat than traditional tone-burst transducers operating at the same frequency. Chirp transducers have heat sinks in their construction to dissipate heat. Airmar's Chirp transducers have been designed to be installed in specific ways according to the number and placement of these heat sinks. Thru-Hull Mount: Low-Profile Models: B75L/M/H/HW, B150M, B175L/M/H/HW, SS75L/M/H, SS175L/M/H/HW Transducer is installed in a hole drilled through the hull at a cool location away from the engine compartment. During operation, the active face of the transducer is in contact with water. Thru-Hull Mount: External or Stem Models: B265LH/LM, B275LHW, B285M/HW, B765LH/LM, B785M, M188LH, R109LH/LM/LHW, R409LWM, R509LH/LM/LHW Transducer is installed entirely outside of the hull. A stem or stuffing tube hole is drilled through the hull for the transducer cable. The active face and sides of the transducer are immersed in water. In-Hull Mount Models: M135M, M265LH/LM, M285HW, P75M, P95M, P155M, R111LH/LM, R599 LH/LM Transducer is installed within a wetbox/yellow plastic tank affixed inside the hull at a cool location. It must be away from the engine compartment and other hot places. No holes are drilled in the hull, however this installation is suitable for a solid fiberglass hull only. The active face and the sides of the transducer are immersed in propylene glycol (non-toxic marine/RV anti-freeze). Transom Mount Models: IC-TM90M, TM150M, TM165HW, TM185M/HW, TM265LH/LM, TM275LHW Transducer is bolted to the outside of the boat on the transom. During operation, the active face and sides of the transducer are immersed in water. Cavity Mount: Keel Models: CM265LH/LM, CM275LHW, CM510L, CM599LH/LM/LHW, PM111LH/LM/LHW, PM411LWM Transducer is installed in a cavity in the keel at a cool location away from the engine compartment. The active face of the transducer is flush with the outside of the hull and in contact with water. Cavity Mount: Pocket Models: CM265LH/LM, CM275LHW, CM510L, CM599LH/LM/LHW, PM111LH/LM/LHW, PM265LH/LM, PM275LHW, PM411LWM Transducer is installed in a cavity in the hull at a cool location away from the engine compartment. The active face of the transducer is flush with the outside of the hull and in contact with water. PM265/275 shown Welded-tank Mount Models: CM265LH/LM, CM275LHW, CM510L, CM599LH/LM/LHW, PM111LH/LM/LHW, PM411LWM Transducer is installed in a water-filled, welded tank outside of the hull. The active face and sides of the transducer are immersed in water. INSTALLATION INSTRUCTIONS Connector with Removable Nut Assembly 1. Feed the connector and cable through the 13/16" (21mm) diameter hole in the bulkhead. 2. Slip the nut over the connector and push it past the connector and over the cable. 3. Insert the wedge tool into the groove in the split of the split ring. Slide the wedge tool until its squared end is flush with the larger edge of the split ring. 4. Slip the split ring and wedge tool over the connector body until aligned with the mounting groove on the connector. 5. Remove the wedge tool and seat the split ring in the mounting groove, making sure the connector protrusion falls into the split. NOTE: Slip the o-ring up to the split ring. 6. Slip the nut forward until it stops at the connector. Twist until the protrusions on the inside of the nut align with the grooves on the split ring. 7. Slip the nut forward and snap it into place. protrusion final position of o-ring cable connector mounting groove bulkhead nut split split ring wedge tool o-ring 35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA · www.airmar.com Copyright © 2016 - 2017 Airmar Technology Corp. All rights reserved. 17-280-03-rev02 02/21/17 REMOVABLE NUT ASSEMBLY INSTRUCTIONS 1. Feed the cable/connector through the 13/16" (21mm) diameter hole in the wall. 2. Slip the nut over the connector and push it past the connector and over the cable. 3. Insert the wedge tool into the groove in the split of the split ring. Slide the wedge tool until its squared end is flush with the larger edge of the split ring. 4. Slip the split ring and wedge tool over the connector body until aligned with the mounting groove on the connector. 5. Remove the wedge tool and seat the split ring in the mounting groove, making sure the connector protrusion falls into the split. Note: Slip the o-ring up to the split ring. 6. Slip the nut forward until it stops at the connector. Twist until the protrusions on the inside of the nut align with the grooves on the split ring. 7. Slip the nut forward and snap it into place. protrusion final position of o-ring wall connector / cable mounting groove nut split split ring wedge tool o-ring 17-280-02 rev01 03/23/12