Newcon Optik NVS 22-2XT Bedienungsanleitung
Operation Manual
NIGHT VISION RIFLESCOPE
NVS 22-2XT
105 Sparks Ave., Toronto, ON M2H 2S5, Canada
ii
IMPORTANT INFORMATION
Read prior to activation.
You have purchased a sophisticated electronic device. To operate it
properly, please read this manual fully.
Ignoring operation procedures described in this manual will void
your warranty.
NEVER Disassemble the unit. Device contains a source of
high voltage, which may be hazardous to your
health!
NEVER Aim active unit towards intense light sources (i.e.
lights, headlamps, campfires, the Moon, etc.)
NEVER reverse the polarity of a battery
NEVER connect the unit to external power source
ALWAYS remove batteries when not in use for a long period
of time
ALWAYS keep the objective lenses covered other then when
in use during the night operation
ALWAYS store the unit in a warm dry place when not in use
WARNING: Use of this device may be restricted by the national
regulations. Please consult with local authorities.
1
TABLE OF CONTENTS
1. BRIEF DESCRIPTION...........................................................2
1.1. Overview.........................................................................2
1.2. Key features of NVS 22-2XT .........................................2
2. DESIGN of NVS 22-2XT........................................................3
3. SPECIFICATIONS .................................................................4
4. DELIVERY SET .....................................................................5
5. OPERATION INSTRUCTIONS.............................................5
5.1. Battery installation..........................................................5
5.2. Testing NVS 22-2XT in the daytime ..............................6
5.3. Testing NVS 22-2XT at night.........................................6
5.4. Testing NVS 22-2XT at night with day time scope........6
6. INSTALLATION ON A RIFLE .............................................7
7. STORAGE AND MAINTENANCE.......................................9
8. TROUBLESHOOTING ........................................................10
8.1. The scope does not turn on ...........................................10
8.2. The target does not appear in focus. .............................10
8.3. Image has disappeared. .................................................10
8.4. Condensation accumulates on the parts ........................10
8.5. Black dots on the screen ...............................................10
9. WARRANTY ........................................................................11
10. CUSTOMER SUPPORT.......................................................12
11. ACCEPTANCE CERTIFICATE ..........................................13
2
1. BRIEF DESCRIPTION
1.1. Overview
NVS 22-2XT is a night vision attachment to a daytime weapon scope
designed for precise aiming in darkness.
The device is equipped with a high-quality electro-optical image
intensifier tube that amplifies light in the visible and IR spectrum
providing for up to a 400-700 m effective observation range at low light.
Observation range depends on the characteristics of the day scope NVS
22-2XT is attached to and actual observation conditions, such as
available light, atmosphere transparency and target reflectivity. The
observation range increases by brighter light, at moon night, or if the
object is positioned against a light background, such as snow or grass.
The range decreases at lower light, low atmosphere transparency, or if
the object is positioned against dark background, such as plough-land,
desert, stems of trees, etc.
1.2. Key features of NVS 22-2XT
•Installation of NVS 22-2XT in front of a day scope on a weapon
does not affect the latter’s zeroing and scope’s tactical parameters
•Exit pupil of 35 mm fits a broad range of day scopes
•Accurate internal focus adjustment mechanism
•High quality image within the entire field of view
•Withstands large calibre recoil
•Supplied with MIL-STD-1913 Weaver / Picatinny mount
•Water-resistant design
•Can be equipped with optional powerful IR Illuminator
•Automatic bright light protection of image intensifier tube
•Low power consumption: two standard AA batteries ensure
operation for 60 hours
•Compact and lightweight
3
2. DESIGN of NVS 22-2XT
4 3 5 9 2 6
1 9
10 8 5 7
11
Fig .1
1 – Device body
2 – Objective lens
3 – Eyepiece
4 – Rubber eyepiece guard
5 – Battery compartment
6 – Objective lens cap
7 –On/Off switch
8 – Focus adjustment knob
9 – Weaver mount
10 – IR illuminator mount
11 – IR illuminator mount
4
3. SPECIFICATIONS
Optical
Magnification, x 1
Field of view, degrees 8
Day Scope magnification, x :
Acceptable
Recommended
1-20
3-5
Focus length, mm 110
F-number 1.6
Focus range 20 m to infinity
Image intensifier tube
Type 18mm MCP
Gain, min 25,000
Resolution, lp/mm 54-64
Infrared illuminator (optional)
Type IR diode
Power, mW 75
Illumination angle, degree 8-10
Illumination spectrum, nm 805
Electrical parameters
Power supply 2 AA batteries
Voltage, V 3
Continuous work time, h, min 60
Mechanical characteristics
Dimensions, mm 258 x 80 x80
Weight, g 985
Environmental conditions
Operating temperature range -50ºC to +50ºC
Relative humidity 98%
NOTE: As the design is being continuously improved
some parameters may differ from those given above.
5
4. DELIVERY SET
NVS 22-2XT is supplied with in the following set:
- Device
- Objective lens cap
- Rubber eyepiece guard
- Picatinny rail mount
- Operator’s manual (this document)
- Warranty card
- Soft case
- AA Batteries
Optional accessories:
- IR illuminator
- Hard Case
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
2 pcs.
1 pc.
1 pc.
5. OPERATION INSTRUCTIONS
WARNING!
Lens cover should be always on when switching on NVS 22-2XT in
bright light conditions. Never aim the lens in the direction of bright
light.
5.1. Battery installation
NVS 22-2XT requires two AA batteries.
Prior to installing the batteries make sure
they are in good condition.
To install batteries unscrew the battery
compartment cover 5 (Fig.1), insert
batteries, observing correct polarity, and
screw the cover back on.
NOTE: Alkaline batteries provide longer
operation time and maximize the power of
the IR illuminator.
6
5.2. Testing NVS 22-2XT in the daytime
Daytime mode of NVS 22-2XT was designed for testing purposes
only. Image may be fuzzy.
To test the device in the daylight:
1. Turn switch 7 (Fig.1) into ON position.
2. Direct the device at an object within 10-20 m from the viewer.
3. Turning the focus knob 8 (Fig.1) adjust focus to obtain the
sharpest image visible through the eyepiece.
NOTE: The device is not supposed to be directed at a bright source of
light: bright lamps, the sun, welding glare, etc – doing so may result in
permanent reduction of the light amplification ability of the device. To
avoid the fatigue of the photocathode do not leave the stationary device
switched on in the excessively bright environment (dawn, dusk, daylight,
etc.) for more than 30 minutes.
5.3. Testing NVS 22-2XT at night
To test NVS 22-2XT in darkness:
1. Take off the lens cap 6 (Fig.1)
2. Turn on the device using switch 7 (Fig.1)
3. By turning knob 8 (Fig.1) and eye-piece 3 (Fig.1) obtain clear
image of the object.
5.4. Testing NVS 22-2XT at night with day time scope
1. Install NVS 22-2XT (see Chapter 6 “INSTALLATION ON A
RIFLE”)
2. Take off the lens cap 6 (Fig.1).
3. Turn on the device using on/off switch 7 (Fig.1). Greenish image
must be seen through the daytime scope.
4. Select necessary zoom of the daytime scope. By turning knob 8
(Fig.1) of NVS 22-2XT acquire the target through daytime
scope.
7
6. INSTALLATION ON A RIFLE
1) Loosen slightly the Clamp screw 11 (Fig. 1) of the adapter rail.
2) Place the NVS-22-2XT onto the Picatinny rail of the fire arm before
objective of daytime scope at the minimal distance from it.
3) Tighten the fixing Clamp screws 11 (Fig. 1)
NOTE:
- Clamp screws may need to be tightened again after continuous
shooting.
- Open the lens cap of the daytime scope prior to installation of
NVS 22-2XT. With NVS 22-2XT mounted in front of the scope it may
be impossible to take the scope lens cap off.
When mounted in front of the daytime riflescope, depending on the
daytime riflescope and position of night vision attachment to the day
time riflescope the complete system may change zeroing (bore sighting)
no more than 1MOA at 100 m.
This is related to changes in the weapon balance, light distortions in the
image intensifier tube, technological limits in the adjustment of the
riflescope attachment. This imprecision usually appears as fixed value
and can be easily compensated by the adjustment mechanism of the
8
daytime riflescope. Thus, it is recommended to estimate if adjustment is
required for a night vision sight in combination with daytime riflescope
by bore sighting daytime riflescope with and without night vision
attachment. Value of the required adjustment should be noted in clicks of
the riflescope and shall be used each time when nigh vision sight is being
used.
RECOMMENDATION:
Please make sure that night vision attachment is mounted on the rifle
with the following tolerances related to position of daytime scope axis:
- maximum permissible misalignment of optical axes shall be within ±1
mm in both vertical and horizontal planes
- maximum permissible misalignment of optical axes shall with ±1
degree in both vertical and horizontal planes
Due to manufacturing process and design of image intensifier tubes, it is
not always possible to eliminate boresight alignment of 1MOA at 100 m,
which could appear during shooting. It is recommended to make 10-15
shots during the scope testing as an additional test before operation in
real conditions.
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