Newcon Optik NV66-G2 User manual

Operation Manual
NIGHT VISION BINOCULARS/GOGGLES
NV66 – G2
105 Sparks Ave., Toronto, ON, M2H 2S5, Canada

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IMPORTANT INFORMATION
Read prior to activation.
You have purchased a sophisticated electronic device.
To operate it properly, please read this manual
carefully.
Ignoring the operation procedures described in this
manual will void your warranty.
NEVER disassemble the unit. This device contains a
source of high voltage, which may be hazardous to
your health.
NEVER open the objective lens of an active unit in
bright light, including daylight. In the daytime the
objective lens must be covered by cap. A tiny hole in
the cap provides enough light for daytime testing.
NEVER aim an active unit at intense light sources,
such as lights, headlamps, campfires, the Moon, etc.
NEVER reverse the polarity of a battery.
NEVER connect the unit to any external power
supplies.
ALWAYS remove battery when not in use for a long
period.
ALWAYS keep the objective lenses covered when not
in use.
ALWAYS store the device in a warm dry place.

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PRECAUTIONS
NV66-G2 is a sophisticated precise optical instrument
equipped with electronics. It should be handled with due
care:
Unit contains fragile components. Avoid impacts,
dust, moisture and sharp changes of temperature.
Do not touch the optical surfaces other than for
cleaning. Doing so may damage the anti-reflection
coating.
Clean optical surfaces with professional lens cleaning
supplies.
Use only a soft clean cloth to clean the exterior of the
device.
Keep the device away from sources of heat, such as
heating appliances, sunlight or central heating.
Switch off the unit and remove the battery during the
extended periods of non-operation.
Do not apply an excessive force or pressure to the lens
assembly, movable parts and thread connections.
Small dark and/or light spots may be seen in the field
of view due to considerable optical magnification of
the eyepiece. This does not affect the operational
capabilities of the device

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TABLE OF CONTENTS
1. OVERVIEW................................................................3
2. DELIVERY SET .........................................................5
2.1 Standard delivery set................................5
2.2 Optional accessories ................................5
3. SPECIFICATIONS .....................................................6
3.1 Unit specifications ...................................6
3.2 Main tube parameters...............................7
3.3 Spatial frequency-contrast characteristic .8
3.4 Field of view cleanness............................8
4. UNIT DESIGN............................................................9
5. OPERATION INSTRUCTIONS...............................10
5.1 Installing battery ....................................10
5.2 Switching the unit on .............................10
5.3 Switching the unit off.............................11
5.4 Operating at night ..................................12
5.5 Adjusting to individual vision................12
5.6 Focusing.................................................13
5.7 Using Unit with headgear ......................13
5.8 Interpupillary distance ...........................13
5.9 Installation of interchangeable lenses ....14
5.10 Using optional helmet mount.................16

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6. TROUBLESHOOTING ............................................18
6.1 No green light through eyepieces...........18
6.2 Image is unclear.....................................18
6.3 Image flashes .........................................18
6.4 Condensation accumulates on the parts .18
6.5 Visibility decreased or disappeared .......19
7. WARRANTY............................................................20
8. CUSTOMER SUPPORT...........................................21
9. ACCEPTANCE CERTIFICATE ..............................22

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1. OVERVIEW
NV66-G2 (the unit) is optoelectronic goggles intended for
observation of objects and orientation at night or under
dark conditions. The unit is equipped with a generation
2+ intensifier tube, which amplifies low light, such as
moonlight, starlight or man-made light.
Add-on lens can be attached to the unit to increase
magnification.
Unit can be mounted on a helmet or headgear or used as
night vision binoculars.
Some typical activities where NV66-G2 can be useful:
Wildlife observation
Security
Search and rescue
Hunting

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Features
Built-in infrared illuminator allows observation in
total darkness (i.e. cave or dark room);
Helmet mount (optional) allows combatant
operations
Flip/flop mechanism provides for unobstructed
vision when the unit is mounted on headgear or
helmet
Waterproof design (1 meter deep immersion for 30
minutes)
Soft rubber eyecup makes viewing comfortable
Please read all the instructions carefully prior to using the
unit.
Manufacturer reserves the right to introduce minor design
changes without notice.

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2. DELIVERY SET
2.1 Standard delivery set
QUANTITY
NV66-G2 unit with 1x lens and headgear 1
Lens cap 1
Neck strap 1
Soft case 1
Manual 1
Warranty card 1
AA battery 2
2.2 Optional accessories
3x, 4x, 5x, 8x lenses Hard case
Lens cleaning kit Helmet mount
Exact Delivery Set is subject to the specific contract
terms.

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3. SPECIFICATIONS
3.1 Unit specifications
Image Intensifier Tube
(IIT)
18 mm
Gen. 2+
Apparent field of view 40º
Eye relief 15 mm
1x Objective focal length /
F-number 27.5 mm / F1.2
4x, 5x, 8x Objective focal
length, mm / F number 100 / F1.5, 130 / F2.3, 216.4 / F2.0
Interpupillary distance 57-73 mm
Focus range (1x) 0.25 m - 
Dioptric correction ±5
Battery type 2 standard AA batteries
Battery life Over 80 hours without IR; over 30 hours
with IR
Low battery indicator √
IR ON indicator √
Momentary IR button - √-
Waterproof 1 m, 30 minutes
Size 150x120x55 mm
Weight 0.480 kg
NOTE: As the design is being continuously improved
the actual specifications may be better than those given
above.

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3.2 Main tube parameters
Image Intensifier Type
(Generation/Grade)
EPM66G2
Photocathode operating diameter 18 mm
Photocathode type S-25
Photocathode sensitivity:
Integral 450 A/ lm
Spectral at = 850 nm 26 mA/W
Light amplification >20,000 fl/fc
Image magnification 1x
Signal-to-noise ratio, min 18
Current consumption, max 18 mA
Voltage 2.80.8 V
MTBF, hours 10 000
Operating temperature range -50°C … +50°C

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3.3 Spatial frequency-contrast characteristic
Frequency, lines/mm Contrast transfer
coefficient
2.5 0.83
7.5 0.56
15.0 0.30
3.4 Field of view cleanness
Allowed spot
diameter, m
I ZONE
0 - 5, 6
mm
II ZONE
5, 6 - 14,7
mm
III ZONE
14,7 - 17, 5
mm
Over 250 0 0 0
150 to 250 0 0 1
100 to 150 0 2 2
50 to 100 1 3 3
0 to 50 Not specified

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4. UNIT DESIGN
1 - On-Off, IR switch 6 - Objective lens cover
2 - Mounting socket 7 - Objective lens
3 - Eyepiece adjustment ring 8 - Tightening screw
4 - Eyepieces 9 - Lever
5 - Battery compartment
cover
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Fig.2 Headgear
1 2
7
6 5
3
4
Fig.1 NV66-G2 goggles

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5. OPERATION INSTRUCTIONS
5.1 Installing battery
Unpack the device. Unit is supplied with battery not
installed.
Prior to installing the battery, make sure the switch
(1, Fig.1) is in the OFF position and the lens cap is on.
Unscrew the battery compartment cover (5, Fig.1), and
install 2 fresh AA batteries. Observe the correct polarity
indicated on the housing. Screw in the battery
compartment cover back.
5.2 Switching the unit on
In daylight put on the lens cap prior to switching
the unit on.
To check if the unit is operational switch it ON (rotate
switch (1, Fig.1) clockwise) and look through eyepiece (4,
Fig.1). You should see greenish-lit screen. If the screen is
not lit check the battery.

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Fig.3 Low battery indicator
When the unit is ON user may see a circular indicator
through the eyepiece (Fig. 3). It is hardly noticeable when
not active.
Flashing indicates low battery. For uninterrupted
operation keep fresh batteries ready and replace them on
time.
Solid red dot indicates that the IR illuminator is on.
In the daytime with lens cap on it is normal to observe a
fuzzy image. Switching on the unit device in the daytime
is intended for testing purposes only.
5.3 Switching the unit off
After you have finished using the device, turn it off by
rotating switch (1, Fig.1) to OFF position. Put protective
lens cap on the lens. Remove the battery from the battery
compartment to avoid damaging of the device in case of
electrolyte leakage.

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5.4 Operating at night
Take off the lens cover (6, Fig.1) from the lens (7, Fig.1).
Turn on the device using switch (1, Fig.1). If lighting is
insufficient, turn on the IR illuminator by turning switch
(1, Fig.1). The red indicator (Fig. 3) will go on. IR
illuminator is effective when observing an object located
not far from the viewer.
The IR illuminator is visible to anybody
with a night vision device.
You can raise the unit up for unobstructed vision without
taking the headgear off by using the “flip/flop” feature
(Fig. 2). To do so: press the lever (9) and raise the device
into vertical position, until you hear a click.
Reverse the operation for a working position.
5.5 Adjusting to individual vision
Turn on the device. Direct the device at an object placed
within 8-15 m from the viewer. Obtain the sharpest image
possible on the eyepiece screen by focusing the eyepiece
lens (3) and then the objective lens (7, Fig.2).

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5.6 Focusing
To obtain sharp image at other distance adjust the lens
focus (7, Fig.1) leaving eyepiece setting intact. You
should be able to obtain a sharp image for distances from
0.2-10 m to infinity depending on lens magnification.
5.7 Using Unit with headgear
Prior to using the unit with the headgear adjust all the
straps to the head size.
When wearing the unit the eye-relief (the distance
between your eyes and the eyepieces) should be 15-22
mm. In order to achieve this, loosen the locking screw
(8, Fig.1) and set a comfortable distance between the eyes
and the eyepieces; then tighten the locking screw
(8, Fig.1).
5.8 Interpupillary distance
The unit is designed to accommodate interpupillary
distance of 58-72 mm without any additional adjustment
and should be comfortable for 99% of adults.

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5.9 Installation of interchangeable lenses
Do not apply an excessive force when
changing the lenses.
The following procedure is identical for 1x, 4x, 5x or 8x
lenses.
1. Make sure the unit is off.
2. Remove the lens cap (6, Fig.1).
3. Detach the current lens: hold the lens by its base
(1, Fig.1) and rotate it counter-clockwise. Once
the lens has been removed, store it in a safe,
clean space.
4. Screw in (clockwise) new lens.
The threads are very fine (to prevent humidity
penetration) and can be damaged easily. Do not apply
force to the lens rotation. If lens does not screw in
smoothly make sure that the threads match.
Unit is ready for operation immediately after the lens
change.
Warning: Forcing installation of the lens may damage
the thread and cause costly repairs to both the goggles
and the lens that are not covered by warranty.

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Fig.4 NV66-G2 with 4x lens
Fig.5 NV66-G2 with 8x lens

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5.10 Using optional helmet mount
The unit can be equipped with an optional helmet mount.
This mount can be customized to fit a variety of existing
helmet models.
The mount is attached to a helmet with straps.
1 - Locking screw 3 - Flip/Flop
adjusting screws
2 - Flip/Flop button 4 - Mount binding
screw
1 2 3
4
Fig.6 NV66-G2 with 8x lens