Bushnell 13-7507 User Manual

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BINOCULARS

with

Digital Compass

Model: 13-7507

Lit. #: 98-1192/06-08

Instruction Manual

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Right Eyepiece

Battery

Left Eyepiece

Cover

Focus

Focus

 

 

 

 

 

Compass

 

 

 

Power Switch

 

 

 

Tripod Attachment

Socket Cover

English

Parts

Reference

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BUSHNELL MARINE porro prism binoculars are designed for the boating enthusiast in particular, but are also ideal for any demanding environment or application whererock-soliddurability is required. The new model 137507 features an illuminated digital compass built into the viewing optics, with direction and bearing indicators tracking as you view. Bearings are called out ineasy-to-readprecise 1° increments, ideal for navigation and locating objects accurately. The digital compass delivers reliable accuracy anywhere in the world (both Northern and Southern hemispheres). Arange-findingscale allows the viewer to estimate the range to objects of a known size. TheBUSHNELL MARINE is fully waterproof/fogproof and shock protected with suregrip rubber armoring, and hasroll-downeyecups for use with sunglasses and prescription eyeglasses. The optics featuremulti-coatedlenses for excellent light transmission, along with a UV reducing lens coating and internal UV filter to prevent potentially harmful ultraviolet light (wavelengths below 400nm) from reaching your eyes. TheBUSHNELL MARINE comes complete with rugged nylon case and neck strap. Built to last, with a lifetime limited warranty.

ADJUSTING THE BINOCULARS

First, adjust the width (interpupillary distance) of your binoculars with the central hinge, so that when you look through them, you see a single circular image. Then focus the binocular for one eye at a time by turning the oculars (eyepieces) until you see an equally sharp image with each eye. If more than one person will be using the binoculars, you should mark the left and right eyepieces for your own vision to permit quick readjustment.

ABOUT THE DIGITAL COMPASS

The built-in compass is a precision unit with a digital display which indicates bearing in degrees, corresponding to the direction the binoculars are pointed, as well as the compass point heading. When using the compass, always keep in mind the local variation between magnetic and true north. To turn on the compass display, press the

0

270

2

80

26

 

 

 

 

 

 

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rectangular button on the top left side of the binocular. Red illumination allows the compass display to be read even in low light, and power automatically turns off after one minute to prolong battery life. If the display does not come on, or the illumination becomes dim, replace the batteries (see below).

Before using the compass for the first time, it is necessary to calibrate the compass, using the following procedure:

COMPASS CALIBRATION PROCEDURE

This calibration procedure will ensure that the displayed readings are accurate for the area in which the compass will be used. The calibration should be done outdoors if possible, and with the binocular kept at least 7 feet away from any large metal objects. 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 orcounter-clockwiseonce 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)

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CALIBRATING

THE COMPASS

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)

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.

Direction

Deg. Range

Direction

Deg. Range

 

 

 

N (360/0°)

338°~22°

S (180°)

158°~202°

 

 

 

 

 

 

NE (45°)

23°~67°

SW (225°)

203°~247°

 

 

 

E (90°)

68°~112°

W (270°)

248°~292°

 

 

 

 

Display example

 

SE (135°)

113°~157°

NW (315°)

293°~337°

 

 

 

(Due South)

 

 

 

 

 

 

 

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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):

1) To measure distance when the height is known:

Object height (m)

x 1000 m = Distance in meters

Scale Reading

 

2) To measure object height when the distance is known:

Distance (m) x Scale Reading = Object height in meters

1000

Ranging

Reticle

260

270

280

260

270

280

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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. Set the cover aside and remove the battery. Note the “+” and “-“polarity markings on the battery. 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.

Battery Requirement: One CR2 Lithium (3 volt)

Polarity

 

Cover

 

Cover

 

 

 

Unlocked

 

Locked

Sticker

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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IMPORTANT NOTE

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. Allow time for gradual change in temperature.

Technical Specifications

Binocular Specifications

Compass Specifications

Magnification

7x

Azimuth

-3~+3degrees

 

 

Accuracy

 

Objective Lens

50 mm

Azimuth Range

0~359 degrees

Eye Relief

17.5 mm

Azimuth

1 degree

 

 

Resolution

 

Real Field of View

7.0 °

Operating Temp

-10~+55°C

 

 

 

 

Field of View

367 ft.

Current

12 mA

@1000 yds

 

Consumption

 

Exit Pupil

7.1 mm

Voltage Required

2.7~3.4 volts

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FCC Note:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

·Reorient or relocate the receiving antenna.

·Increase the separation between the equipment and receiver.

·Connect the equipment into an outlet on a circuit

different from that to which the receiver is connected.

·Consult the dealer or an experienced radio/TV technician for help.

Shielded interface cable must be used with the equipment in order to comply with the limits for a digital device pursuant to Subpart B of Part 15 of FCC Rules.

Specifications and designs are subject to change without any notice or obligation on the part of the manufacturer.

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NOTES

10

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