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Humminbird HDR 400G Operation Manual

Digital depthfinder
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Summary of Contents for Humminbird HDR 400G

  • Page 2 GUARANTEED DEPTH PERFORMANCE Your Humminbird Digital is guaranteed to operate to 400 feet when the unit and transducer are properly installed, following the instructions in this operations manual. It cannot be emphasized enough how important it is to correctly install the unit and transducer.
  • Page 3 Please carefully consider the following before installing your transducer. TRANSDUCER MOUNTING OPTIONS A. Transom Mount- The Humminbird high speed transducer allows the transducer element to be mounted below the bottom of the boat hull keeping the transducer out of turbulent water and...
  • Page 4 B. Inside Hull Mount- The high speed transducer can be mounted inside the hull (without pivot assembly) using the proper two-part epoxy, such as Humminbird’s epoxy kit. Even though there is some loss of signal in shooting through the hull, your LCR will perform well with this type of installation.
  • Page 5 Once the location is determined mark and drill three 7/64” dia.. holes noted on the template. Attach the metal bracket using three #10 self threading screws supplied. Be sure to align holes in the center of the Bracket slots. On some aluminum boats it may be necessary to use a wood back-up plate. It is important to use a silicone sealant between the screwhead and bracket in order to prevent leaking.
  • Page 6 NOTE: On boats with more than 15 degree deadrise angle it may be necessary to mount the transducer slightly off parallel with the water level. (See Figure E) Mark and drill the three 9/64” dia. holes as shown on the template. Attach the metal bracket using the three #10 self threading screws supplied.
  • Page 7 Step 4 TRANSDUCER ASSEMBLY- Insert the transducer assembly into the metal bracket from the bottom. Push up until the holes in the plastic pivot align with the uppermost holes in the bracket. Slide the O-ring on to the headed pin and insert it through the two parts. Assemble by screwing the ¼”x3/8”...
  • Page 8 Techsonic Industries, Inc. will not be responsible for any damage due to the mounting of your transducer in this manner. NOTE: An Epoxy Kit (Part N. EPK) is available from Humminbird. This Epoxy Kit has been formulated for Inside Hull Transducer Installation.
  • Page 9 Position the swivel base and drill four ¼” diameter holes. Note: The LCR hole pattern Is the same as for all Humminbird flasher units. Use hardware provided to mount this base to the boat. Next place the gimbal bracket on the swivel base and attach with four small machine screws, provided.
  • Page 10 Install the mounting knobs and tighten snugly. The unit can now be swiveled and tilted to any desired position.

  • Page 11: Other Mounting Options

    INSTALLING THE CABLES Your LCR comes equipped with Humminbird’s new Angle-Lock power and transducer connectors. The power connector is identified with the letter P on the back of the plug.
  • Page 12 It plugs into the outlet on the back of the unit marked “Power”. The transducer connector is identified with the letter T and plugs into the outlet on the back of the unit marked “Transducer”. Note: An adapter (AD-4) is available to allow use of an old waterproof (BNC) transducer with the LCR, but be sure that the transducer is a 16degree.

  • Page 13: Installing The Unit

    INSTALLING THE UNIT Your Humminbird Digital has been designed for best viewing when mounted directly in front of or to the right of the operator. This is particularly important for best viewing at night or in low light conditions.
  • Page 14 IN-DASH UNIT MOUNTING PROCEDURE Select an area directly in front of or to the right of the operator for best viewing, especially at night. Before mounting the unit you must decide where to mount the alarm. It has been designed to mount either to the back of the unit or away from the unit where it can be heard easier.
  • Page 15 You can now snap the display bezel over the housing, making sure that the control buttons are properly positioned through the bezel. The bezel may be removed from the housing by prying with a screwdriver ii the slots on either side (see Figure 14).
  • Page 16 (+) post and the black lead to the negative (-) post. Install a 1 amp fuse between the red cable and positive post of your 12-volt battery. If a fuse panel is available, we recommend wiring the power cable into the fuse panel. 'Note: The Humminbird Digital must be fused separately from any other accessory.

  • Page 17: Operational Instructions

    OPERATIONAL INSTRUCTIONS With only four buttons your Humminbird Digital is very easy to use. The use of each button is explained below, as well as some special functions such as selecting feet, meters, or fathoms and the option of deleting the decimal point.