Nikon Laser IRT User Manual

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Laser IRT 4 12 42  
In the event that you should require service for your  
Nikon RIFLESCOPE, in case of U.S.A. market, please  
send it directly to:  
Nikon Scope Service  
841 Apollo Street, Suite 100  
El Segundo, CA. 90245-4721  
1-800-Nikon SV.  
In other market, please bring it to dealer from which  
you purchased it.  
3-25, Futaba 1-chome, Shinagawa-ku, Tokyo 142-0043, Japan  
Tel:+81-3-3788-7697 Fax:+81-3-3788-7698  
Printed in Japan (505B) /1E  
INSTRUCTION MANUAL  
E
Congratulations on your choice of a Nikon Laser IRT. Your new  
scope is the finest example of Nikon's rugged and durable construc-  
tion and precision bright optics; important qualities for a serious  
shooter's riflescope.  
Whether you use your scope for hunting or for target shooting, the  
procedure for mounting is identical. After mounting the scope on  
your riflescope, follow the procedures for reticle alignment.  
When setting the reticle for hunting, you should determine your stan-  
dard range and then adjust the reticle based upon that reading dis-  
tance. For targets which vary from that standard distance you may  
simply adjust the position of the reticle in relation to your target, or  
you may wish to use the procedure for trajectory compensation. It's  
up to your personal preference.  
Please observe the following guidelines strictly so you can use the  
equipment properly and avoid potentially hazardous problems.  
Before using this product, read thoroughly the "SAFETY PRECAU-  
TIONS" and instructions on correct usage accompanying the prod-  
uct. Use of controls or adjustments or performance of procedures  
other than those specified herein may result in hazardous radiation  
exposure.  
Nomenclature  
Objective lens  
Eyepiece lens  
Elevation Adjustment  
Windage Adjustment  
Eyepiece Adjustment  
Power index Dot  
Keep this manual within reach for easy reference.  
Fig. 1  
Specifications and design are subject to change without notice.  
No reproduction in any form of this manual, in whole or in part  
(except for brief quotation in critical articles or reviews), may be  
made without written authorization from NIKON VISION CO., LTD.  
Power Scale  
Power Selector Ring  
Adjustment Cap  
We hope that you will enjoy your new Nikon Laser IRT for many  
years to come. Enjoy using it, and above all, always follow safe  
shooting procedures!  
POWER button  
The product(s) described herein may be subject to export control  
regulations in the relevant country (ies). It (they) should not be  
exported without authorization of the exporting govermental authority  
if the regulations apply.  
Remote Control Detector (both side)  
Battery Chamber Lid  
Battery Chamber Lid Screw  
Remote control unit  
Remote control button  
LED  
Fig. 2  
Key Features  
The following factors ensure best range and accuracy:  
Nighttime use  
Cloudy weather  
Measuring range: 33 yards-766 yards  
Distance measurement display: 1 yard  
Easy-to-aim 4-12x optical observation system  
Waterproof design (NOT designed for underwater usage)  
Invisible/Eyesafe FDA Class I Laser  
8-second results display  
Compact, ergonomic design  
Automatic shut-off (after approx. 8 sec. Unattended)  
Default to "Last Use" settings  
Product number  
Explanatory label  
Bright-colored targets  
Targets with highly reflective surfaces  
Targets with shiny exteriors  
Large-size targets  
Fig. 4  
Shooting targets facing at 90 degrees  
Fig. 3  
Measurement may result in inaccuracy or failure in the  
following cases:  
Slender or small target  
Target has diffusing reflective surface  
Target does not reflect the laser beam (glass, a mirror, etc.,)  
Black target  
Target has pronounced depth  
In snow, rain or fog  
Target measured through glass  
Reflective surface measured from diagonal direction  
Moving target  
Obstacle moving in front of the target  
When targeting the surface of water  
12-second continuous measuring function  
Diopter adjustment function  
Infrared/manual control distance measurement system  
Status of the Internal Display  
1. Fig. 10, 11 - Reticle (aiming system)  
Use to take aim at the target. Position the target at the center of the reticle, which will always appear in the display.  
] - Distance/measurement status display  
Digitally Indicates measured distance in yards. Also indicates measuring status such as "Measurement in progress". "Measurement unsuc-  
The Nikon Laser IRT emits invisible, eyesafe, infrared energy pulses  
that reflect off the selected target back to its optical receiver.  
Sophisticated precision charge circuitry is used to instantaneously  
calculate distances, by measuring the time it takes for each pulse to  
travel from the rangefinder to the target and back. The maximum  
range of the instrument depends on the reflectivity of the target, its  
color, surface finish, size and shape.  
2. [  
cessful" or "Unable to measure".  
Display of results: (100/yards)  
Display of results: (100/yards)  
[
e.g.55 yards = [  
e.g.576 yards = [  
]
]
] - Now measuring  
] - Fail to measure or can not measure distance.  
] - Indicates distance being measured in yards and battery condition.  
] - one shot measurement mode.  
[
3. [  
4. [  
Display at "after power on" or "Measurement mode is changed".  
] - Normal (continuous) measurement mode  
5. [  
CAUTIONS BEFORE USE  
temperature, water condensation may occur on lens surfaces.  
Do not use the product until the condensation has evaporated.  
Do not use alcohol for cleaning the main body.  
Do not leave the polyethylene bag used for packaging within  
the reach of small children.  
Be careful that small children do not inadvertently swallow the  
adjustment cap. If it does happen, consult a doctor immedi-  
ately.  
If your Nikon Laser IRT should fail to operate correctly, dis-  
continue use immediately and consult the Troubleshooting  
Table. If you are unable to fix the problem, contact your local  
dealer for instructions on where to send it for repair.  
Display at "Measurement is over" or "Measurement mode is changed".  
Please observe the following guidelines strictly so you can use  
the equipment properly and avoid potentially hazardous prob-  
lems. Before using this product, read thoroughly the "SAFETY  
AND OPERATION PRECAUTIONS" and instructions on correct  
usage accompanying the product. Keep this manual within reach  
for easy reference.  
Changing Battery  
Type of battery  
Scope - 3V CR2 lithium Battery  
Remote control unit - 3V CR2025 lithium Battery  
WARNING  
This indication alerts you to the fact that any improper use ignor-  
ing the contents described herein can result in potential death or  
serious injury.  
Battery change  
Scope  
1.Loosen the Battery Chamber lid screw with coin. (Fig. 5)  
2.Replace the CR2 Lithium Battery correctly. (Fig. 6)  
3.Tighten the lid screw firmly for air tightness  
CAUTION  
CARE AND MAINTENANCE  
Lenses  
When removing dust on the lens surface, use a soft oil-free  
brush.  
Fig. 6  
This indication alerts you to the fact that any improper use ignor-  
ing the contents described herein can result in potential injury or  
material loss.  
When removing stains or smudges like fingerprints from the  
lens surface, wipe the lenses very gently with a soft clean cot-  
ton cloth or quality oil-free lens tissue.  
Use a small quantity of pure alcohol (not denatured) to wipe  
stubborn smudges. Do not use velvet cloth or ordinary tissue,  
as it may scratch the lens surface. Once the cloth has been  
used for cleaning the body, it should not be used again for the  
lens surface.  
SAFETY AND OPERATION PRECAUTIONS  
Warning  
Never look directly at the laser beam or directly at the sun  
Fig. 5  
when using the Nikon Laser IRT.  
Do not depress the POWER button while aiming with the eye  
or looking into the optics from the objective side.  
Do not operate the unit with other additional optical elements,  
such as lenses or binoculars. Using an optical instrument  
together with the Nikon Laser IRT increases the danger of  
damaging the eyes.  
Do not disassemble the Nikon Laser IRT. A product that has  
been disassembled is not guaranteed by the manufacturer.  
If the Laser IRT's body cover is damaged, or if it emits a  
strange sound due to dropping or for some other cause,  
immediately remove the battery and stop using.  
a
Remote control unit  
1.Insert the metal plate into the groove of opposite side of  
b
LED. (Fig. 7)  
2.Press down the metal plate (a) to lift up the rear cover  
(b). (Fig. 7) There are eight hinge stoppers. (Fig. 8)  
(Be careful to break the hinge stopper.)  
3.Replace the CR2025 Lithium Battery correctly. (Fig. 8)  
4.Put the rear cover back and press the edge of cover to  
catch the hinge stopper.  
Main body  
Clean the body surface with a soft, clean cloth and a dry cloth.  
Do not use benzene, thinner, or other organic agents because  
they may cause discoloration or rubber degeneration.  
Storage  
Water condensation or mold may occur on the lens surface  
because of high humidity. Therefore, store the Nikon Laser  
IRT in a cool, dry place.  
Fig. 7  
Cautions  
When not using the Nikon Laser IRT, do not push the POWER  
button.  
Do not leave the Nikon Laser IRT within the reach of small  
children.  
After use on a rainy day or at night, thoroughly dry it at room  
temperature, then store in a cool, dry place.  
Battery condition  
Scope  
NOTES ON LITHIUM BATTERY  
flashing: Battery charge is low and battery should be replaced.  
Rain, water, sand or mud should be removed from the Laser  
IRT body surface as soon as possible, using a soft, clean, dry  
cloth.  
Although the Nikon Laser IRT is waterproof, it is not designed  
for use underwater.  
If handled incorrectly, battery may rupture and leak, corroding equ-  
ipment and staining clothing. Be sure to observe the following:  
Install battery with the + and - poles positioned correctly.  
Battery should be removed when exhausted or during extend-  
ed periods of non-use.  
Remote control unit  
No Information  
shows a position of hinge stopper  
Fig. 8  
Do not leave the Nikon Laser IRT in an unstable place, as it  
may fall and cause injury, or damage the equipment.  
Do not look through the Nikon Laser IRT while walking. You  
may walk into something and get hurt.  
Do not leave the Nikon Laser IRT in a car on a hot or sunny  
day, or near heat-generating equipment. This may damage or  
negatively affect it.  
Do not leave the Nikon Laser IRT in direct sunlight. Ultraviolet  
rays and excessive heat may negatively affect or even damage  
the unit.  
Use the same type of battery.  
If battery fluid contacts eyes or skin, rinse well with water. If  
swallowed, consult a doctor immediately.  
Do not short-circuit battery chamber terminals.  
Do not carry batteries together with keys or coins in a pocket  
or bag. This may overheat and short-circuit batteries.  
Do not put batteries in fire or water. Never disassemble batter-  
ies.  
Install the Remote control unit  
1. The Remote control unit is attached near the thumb of the hand which is holding the gun.  
2. The LED on the Remote control unit must turn the direction of the Remote Control Detector. (Fig. 2 & 3)  
3. Then fix the Remote control unit with the band.  
Do not change batteries.  
Do not subject stored batteries to extremes in temperature.  
Do not subject batteries to strong vibrations or shock.  
Effective control range is less than 20 inches.  
When the Nikon Laser IRT is exposed to sudden changes in  

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