STEP 1
For this example, a ML100-R manufactured by Norcross Marine Products Inc. ( www.norcrossmarine.com ) is used. Avoid installing the transmitter in an engine compartment where sound suppression insulation may reduce range. If your boat's deck is constructed from metal, the transmitter needs to be installed above deck. Mount above the waterline of the vessel and free from water spray, and/or water submersion. Don't mount the transmitter within 12 inches of magnetic-producing devices. Test the installation location first by temporarily installing both the display and transmitter. Steady readings on the display will indicate interference-free operation. Here, the transmitter is mounted in the storage bin underneath the seat behind the center console. Four stainless-steel screws (supplied) are used to affix it to the inside wall of the bin. Once the unit is mounted, it needs to be wired to a switched power source (battery). |
STEP 2
When not in use, the charging station keeps the portable display fully charged. The charger mounting location should be 12 inches from a magnetic bearing indicator such as a compass or autopilot control. As with the transmitter, it's important to find a suitable, relatively dry spot for mounting. There's enough room in the storage bin (where the transmitter is mounted) to also mount the charging station. Two stainless-steel screws are supplied in order to affix it to the sidewall of the bin right next to the transmitter. Hook it up to the power source (battery). It's fairly easy because there are only two wires to have to worry about ' red and black. The red attaches to the positive terminal and the black to the negative terminal. You can also install an on/off switch for the charger, but the power source must be constant (on) for optimal charging. |
STEP 3
A transom-mounted transducer is recommended for outboards. A template is provided to assist in proper placement. At the selected location (to the right of the centerline), but away from the prop's swirl, position the template so the arrow at the bottom is aligned with the bottom edge of the transom. Be sure the template is parallel to the wateline and then tape it in place. Using a 9/64-inch drill bit, drill two holes at the locations indicated on the template. The bracket holding the transducer is designed for a standard 13-degree transom angle. If your transom isn't at this angle, use the shim to see that the bottom of the transducer is parallel to the bottom of the hull. Using the two 10-inch by 1-1/4-inch stainless-steel, self-tapping screws, attach the bracket to the hull. Fill the holes with a marine sealant before attaching the bracket to prevent leaks. |
STEP 4
The sensor cable runs from the transducer on the transom to the transmitter, and can be routed over the transom, through a drain hole, or through a new hole drilled in the transom. There are no drain holes available on this particular boat to use, so rather than drill another hole, route the cable over the transom. The cable is secured to the outside of the transom using two small cable clamps, spaced equally apart. Continue routing the cable through an existing hole in the deck (used by the steering and control cables) and then into the bilge area. From here, you can drill a small hole in the side wall of the bilge area in order to get the cable into the storage bin under the seat where the transmitter is mounted. Wire the cable to the transmitter. It's a simple matter of matching three colored wires from the cable to the transmitter box ' blue to blue, black to black, and silver to silver. |