User manual BUSHNELL MARINE BINOCULARS 137507

[. . . ] The digital compass delivers reliable accuracy anywhere in the world (both Northern and Southern hemispheres). a range-finding scale allows the viewer to estimate the range to objects of a known size. The BUSHNELL MARINE is fully waterproof/fogproof and shock protected with suregrip rubber armoring, and has roll-down eyecups for use with sunglasses and prescription eyeglasses. [. . . ] Facing due north is not required for calibration. For best results, the compass should be calibrated again: 1) After any significant change in your location since the last calibration 2) After changing the battery, especially if a different brand is used 3) If the binocular was in direct contact with a large metal object (for example a steel table) while the power was on (note that the power automatically shuts off after one minute, so this should not be common) TO CALIBRATE THE COMPASS: After turning on the compass by pressing the power button on the top right side of the binocular, rotate the entire binocular clockwise or counter-clockwise once in a full circle (360 degrees) along each of these three axes, in this order, returning to the starting position at the end of each step (see the diagrams on the following page): Step 1: Pitch (rotate 1 full cycle "end over end", in a vertical plane up/down) Step 2: Yaw (rotate 1 full cycle "spinning around", in a horizontal plane left/right) Step 3: Roll (rotate 1 full cycle as shown along the binocular's center hinge axis) (rotate 1 full cycle as shown along the binocular's center hinge axis) READING THE COMPASS After completing the last rotational cycle, the compass is calibrated, and will display "0" degrees when the binocular is pointing straight North (magnetic north), 180 degrees when pointed due South, etc. The chart below shows the range of degrees corresponding to each of the 8 segments in the circle to the left of the digital display, which represent common compass headings. For example, when the compass indicates anywhere from 338 to 22 degrees, the North segment will "switch off" (become clear) indicating that the binocular is pointed in a northerly direction. 260 270 280 HOW TO USE THE RETICLE The vertical scale (reticle) visible through the left half of the binocular, above the compass display, allows you to calculate distance to an object if you know its height, or to calculate the height of an object if you know its distance from you. Each mark on the vertical scale has a value of 5 MIL (1 Mil is equivalent to an angle that can determine an object one meter in height at a distance of 1000 meters). Therefore, if a navigation chart gives the height of an object, by sighting on it and counting the number of MILs, you can determine how far away it is. Here are the two formulas (note use of metric units): 2) To measure object height when the distance is known: HOW TO CHANGE THE BATTERIES To change the battery, use a coin to remove the battery compartment cover by turning it counterclockwise, until the "unlocked" icon and white dot on the cover line up with the dot on the binocular. Be sure to insert the new battery correctly, in the same direction as shown on the sticker inside the battery compartment, with the "+" (positive) terminal going in first so it is at the bottom of the compartment, and the "-" negative end facing the battery cover. Replace the battery cover with the "unlocked" icon and two dots lined up again, then turn it (with fingers or a coin) until the "locked" icon lines up with the dot on the binocular. The battery should be taken out if the binoculars will not be used for a long time. Batteries left in the binocular for prolonged periods of time without being used may leak and cause damage to the binocular. After replacing the battery, be sure to follow the calibration procedure for the digital compass. After exposure to saltwater or spray, flush the binoculars thoroughly with fresh water and wipe dry. avoid extended exposure to bright sunlight and severe temperature fluctuations. For example, if the binocular has been used under very cold conditions, bringing it into a heated environment could cause condensation build up. [. . . ] Any return made under this warranty must be accompanied by the items listed below: 1) A check/money order in the amount of $10. 00 to cover the cost of postage and handling 2) Name and address for product return 3) An explanation of the defect 4) Proof of Date Purchased 5) Product should be well packed in a sturdy outside shipping carton, to prevent damage in transit, with return postage prepaid to the address listed below: IN U. For products purchased outside the United States or Canada please contact your local dealer for applicable warranty information. [. . . ]