Nikon Laser IRT instruction manual Operational Summary, Specifications, Troubleshooting/Repair

Operational Summary

Riflescope

1.Diopter adjustment

盧Look through the eyepiece with your eye positioned about 4 inches away from the eyepiece lens (Fig. 9), and you will see the Nikoplex reti- cle (Fig. 10), or the BDC reticle (Fig. 11).

Be sure your eye is positioned within progper alinment and proper eye relief otherwise the view will "black out". 盪Point the objective end of the scope at the sky (Do not point at the sun) or at a plain unpatterned wall.

Turn the eyepiece adjustment counter-clockwise and then turn it clockwise until the reticle appears sharp.

2.Magnification

蘆The Laser IRT 4-12X42 has a variable magnification from 4 to 12X.

To change powers. just rotate the power selector ring until the desired magnification appears adjacent to the power index dot (Fig. 2).

3.Adjustment of the riflescope

Sighting through the riflescope, align the rifle with your aiming point on the target and shoot a trial round. If the bullet does not hit the aiming point, adjust the elevation and windage after removing the Adjustment cap, as follows:

4-12X42

蘆For the Laser IRT adjustment is made by turning the grip by hand. If the bullet hits under the aiming point, turn the grip in the direction of the arrow marked "U". If the bullet hits to the left of the aiming point, turn the grip in the direction of the arrow marked "R" (Fig. 12).

Note:

蘆The windage and elevation scales of the Laser IRT 4-12X42 is calibrated in divisions of 1/4 minute of angle with a click at intervals of 1/4 minute of angle (half division).

蘆When adjusting the reticle to the point of aim, remember that one minute of angle equals approximately one inch (2.54 cm) at 100 yards (91.44 m). Therefore, if the impact point is two inches (5.08 cm) low and one inch (2.54 cm) right at 100 yards (91.44 m) Parallax Setting, you should adjust two minutes of angle up one minute of angle left.

Laser Range Finder

Caution - use of controls or adjustments or performance of procedures other than those specified herein may result in haz- ardous radiation exposure

1.Install a battery in the battery chamber. (See "Changing Batteries")

2.Diopter adjustment

Refer to Riflescope Diopter ajustment.

Nikoplex Reticle

Eyepiece Adjustment Eye Relief

Fig. 9 Fig. 10

BDC Reticle

Fig. 12 Fig. 11

3. Measuring

		Specifications
MODEL		4-12x42
SCOPE
Actual magnification		4x-12x
Objective diameter	(mm)	42
	(in)	1.65
Exit pupil	(mm)	3.5★
	(in)	0.14★
Eye relief	(mm)	74-75
*	(in)	2.9-3.0
Field of view at 100 yds.	(m)	7.6-2.5
*	(ft)	25.0-8.2
Objective outside diameter	(mm)	52
	(in)	2.05
Length	(mm)	330
	(in)	13
Weight	(g)	700
	(oz)	24.7
Adjustment graduation	**	1/4: 1 click
	(moa)
Maxinum internal adjustment	**	50
(Elevation & Windage)	(moa)
Parallax setting	(m)	91.44
(at factory)	(yards)	100
Outside Diameter of	(mm)	39
Eyepiece	(in)	1.78
Laser
Class		FDA Class I
Wavelength		905nm
Pulse duration		26ns
Output
Beam Divergence		0.036 degree
Others
Measuring range		33-766 yards
Distance display		1 yard step
Structure		Scope: Waterproof (maximum depth of 2 meters for up to 5 minutes),
		Battery chamber: Water resistant ***
Operating temperature		－10°to ＋50°
Remote control unit		Attachable to a gun with Velcro
Power source		Scope: 3 volts DC, CR-2 lithium battery x1
		Remote control unit: 3 volts DC, CR2025 lithium battery x1
Safety & EMC		21 CRF PART 1040.10: 1985
		FCC Part 15/Sub Part B Class B

★When maximum magnification (12x) is selected.

*(at minimum magnification) - (at maximum magnification)

**moa = minute of angle

***The battery chamber is water resistant, not waterproof. Water may enter the device if the laser IRT is submerged in water. If water enters the battery chamber, wipe out any moisture and allow time for the chamber to dry.

●Waterproof models:

The Laser IRT is waterproof, and will suffer no damage to the optical system if submerged or dropped in water to a maximum depth of 2 meters for up to 5 minutes.

The Laser IRT offers following advantages:

蘆Can be used in conditions of high humidity, dust and rain without risk of damage. 蘆Nitrogen-filled design makes it resistant to condensation and mold.

Observe the following when using the Laser IRT:

Normal (continuous) measurement mode

ONE SHOT measurement mode

蘆As the unit does not have a perfectly sealed structure, it should not be operated nor held in running water.

			START
	Depress		or	Depress Remote
	Power button				control button
	another
	target	Align the reticle cross
			and Target
	same
	target	Measurement
action	Repeat	"Distance" or "－－－"
		(Success or Failure)
	No	Over
		12 seconds
			－ C －
	No		Over
			8 seconds

Change to Measurement mode

Depress POWER or REMOTE control button over 2 seconds until the display changes

	START
Depress		or	Depress Remote
Power button			control button

－ O －

Align the reticle cross

and Target

Depress	or	Depress Remote
Power button		control button

Measurement

"Distance" or "－－－" (Success or Failure)

No	Over
	8 seconds

蘆Any moisture should be wiped off before adjusting movable parts (Power selector Ring, eyepiece, etc.) of the Laser IRT to prevent damage and for safety reasons.

To keep your Laser IRT in excellent condition, Nikon Vision recommends regular servicing by an authorized dealer.

Troubleshooting/Repair

If your Nikon Laser IRT should require repair, please contact your local dealer for details regarding where to send it. Before doing so, you are advised to consult the Troubleshooting Table below.

Symptom		Check Points
Unit does not turn on - LED fails to illumi-		蘆Depress POWER button.
nate		蘆Check and replace battery if necessary.
Target range cannot be obtained		蘆Be sure that nothing, such as your hand or finger, is blocking the laser emission aperture
		and laser detector.
		蘆Be sure that the laser emission aperture and laser detector are clean. Clean them if neces-
		sary.
		蘆Be sure that the target shape and condition is appropriate to reflect the laser beam.
		蘆Replace battery.
	[－－－] ("Cannot measure") appears	蘆Be sure to hold the unit steady while depressing the POWER button.
		蘆Be sure the target is within measuring range (33-766 yards)
	Closer target cannot be measured	蘆Be sure that nothing, such as leaves or grass, is between the Laser IRT and the target.
	Target beyond a certain distance cannot	蘆Be sure that nothing, such as leaves or grass, is between the Laser IRT and the target.
	be measured
Measurement result is unstable		蘆Replace battery.
		蘆Be sure that the target shape and condition is appropriate to reflect the laser beam.
		蘆Be sure to hold the unit steady while measuring the distant.
		蘆 Be sure that nothing, such as leaves or grass, is between the Laser IRT and the target.
Incorrect result is displayed		蘆Replace battery.
		蘆Be sure that the target shape and condition is appropriate to reflect the laser beam.
		蘆Be sure that nothing, such as leaves or grass, is between the Laser IRT and the target.

Stand-by mode *		Stand-by mode *
	(Display on seven segment)
Over	(Action of Unit)	Over
2 hours		2 hours
	(Operation of Unit)
Power OFF **		Power OFF **

Stand-by mode * Unit accepts operation with Remote control unit.

Power OFF ** Unit does not accept operation with Remote control unit.

At Power OFF mode, before using the Remote control unit Power switch must be depressed.

If problems persist after consulting the Troubleshooting Table, please contact your local dealer to check/repair the Laser IRT. Never let anyone other than the official representative of the product manufacturer check or repair the Laser IRT. Failure to follow this instruction could result in injury, or damage to the product.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired opera- tion.

4. Selecting measurement mode

	Change to Measurement mode
Normal		One shot
	Depress POWER or REMOTE
(continuous)
	control button over 2 seconds	measurement
measurement
	until the display changes	mode
mode

蘆Continuous measurement

The instrument continuously measures distance for 12 seconds.

ITEM SUPPLIED

Body...................................................1pc.
Eyepiece cap	..............................1pair
Objective cap

Battery (CR2 & CR2025)............1pc. each

Hood..............................................Option

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.

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

Do not use the Laser IRT for purposes beyond the limits of its stated accuracy.