Newcon Optik NV207-G2 User manual

Operation Manual
NIGHT VISION
MONOCULAR / GOGGLES
NV207-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 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 expose objective lens of an active unit to bright
light, including daylight. In the daytime objective lens must
be covered by cap. A tiny hole in lens 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 the 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 unit in a warm dry place.

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Precautions
NV207-G2 is a sophisticated precise optical instrument equipped
with electronics. It should be handled with due care:
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 unit 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.

TABLE OF CONTENTS
1. OVERVIEW .................................................................... 3
2. DELIVERY SET.............................................................. 5
2.1 Optional accessories.............................................. 5
3. SPECIFICATIONS.......................................................... 6
4. UNIT DESIGN................................................................. 7
5. IMAGE INTENSIFIER TUBE SPECIFICATIONS........ 8
5.1 Main parameters.................................................... 8
5.2 Spatial frequency-contrast characteristics (MTF) . 9
5.3 Field of view cleanness ......................................... 9
5.4 Schematic drawing.............................................. 10
6. OPERATION INSTRUCTIONS ................................... 11
6.1 Installing battery ................................................. 11
6.2 Switching the unit on .......................................... 11
6.3 Switching the unit off.......................................... 12
6.4 Adjusting to individual vision............................. 12
6.5 Focusing.............................................................. 13
6.6 Auto shut OFF at bright light.............................. 13
6.7 Using the unit with headgear or helmet .............. 14
6.8 Swinging head mounted unit for unobstructed view15
6.9 Using IR illuminator ........................................... 15
6.10 Installation of add-on lenses................................ 16
6.11 Demist shield and sacrificial window ................. 17
6.12 Using the camera / video adapter ........................ 17

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6.13 Using the helmet mount ...................................... 17
6.14 Mounting on a rifle ............................................. 19
6.15 Using with a daytime riflescope.......................... 20
6.16 Binocular configuration ...................................... 21
7. TROUBLESHOOTING................................................. 22
7.1 No green light through eyepieces........................ 22
7.2 Image is unclear .................................................. 22
7.3 Image flashes ...................................................... 22
7.4 Condensation accumulates on the parts .............. 22
7.5 Visibility decreased or disappeared..................... 22
8. WARRANTY................................................................. 23
9. CUSTOMER SUPPORT ............................................... 24
10. ACCEPTANCE CERTIFICATE ................................... 25

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1. OVERVIEW
NV207-G2 (the unit) is an optoelectronic monocular, intended
for observation of objects and orientation at night or under dark
conditions. The unit is equipped with a generation 2+ image
intensifier tube, which amplifies low light, such as moonlight,
starlight or man-made light.
An add-on lens can be attached to the unit to increase
magnification.
Two units can be combined to form a two-eye optical system
with the help of an optional bridge.
Unit can be mounted on a helmet (headgear) or used as a
standalone monocular.
Some typical activities where NV207-G2 can be useful:
Law enforcement
Wildlife observation
Security
Search and rescue
Hunting
Dark room photography (connected to a camera)
Features
Flip/flop mechanism provides for unobstructed vision
when the unit is mounted on headgear or helmet
Built-in infrared illuminator enables observation in total
darkness (i.e. basement, cave or dark room);

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Optional helmet mount allows combatant operations
Optional weapon mount allows night shooting or also be
used in conjunction with halosight
Optional bridge allows combining two monoculars into a
binocular configuration
Waterproof design (1 meter deep immersion for 30
minutes)
Soft rubber eyecup makes viewing comfortable
Unit can be connected to photo or video camera
Please read all the instructions carefully before using it.
Manufacturer reserves the right to introduce minor design
changes without notice.

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2. DELIVERY SET
Standard* Delivery Set includes:
Quantity
NV207-G2 unit 1
Arm mount 1
Headgear set 1
Lens cap / Battery cover 1
Manual 1
Lens cleaning kit 2
Carrying bag (soft) 1
AA Battery 1
Warranty card 1
2.1 Optional accessories
US mount clip Bridge
Demist shield Hard case
Sacrificial window Lens brush
3x add-on lens Camera / video adapter
5x lens Helmet mount
Weapon mount
*Exact Delivery Set is subject to the specific contract terms.

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3. SPECIFICATIONS
NV207-G2
1x lens
NV207-G2
3x lens
Image intensifier tube 18 mm, Gen 2+, EPM207G-2-11-22
Magnification 1x 3x
Field of view 4013
Focus range, m 0.25-2-
Exit pupil diameter, mm 21
Eye relief, mm 25
Dioptric correction +5 -6
Power supply
3V CR-123 Lithium battery, 1 pc.
or
1.5 V AA Alkaline battery, 1 pc.
Battery life, hours Over 20 hours with I/R
Over 40 hours without I/R
Size, mm 118x48x69 206x63x69
Weight, monocular only, g 300 540
NOTE: Due to continuous design improvements parameters
may vary from those given above.

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4. UNIT DESIGN
1. On / Off and IR illuminator switch
2. Infrared illuminator and light sensor
3. Objective lens with lens cap
4. Eyepiece with eyecup
5. Headgear
6. Battery compartment cover
with battery type adapter
7. Battery compartment
8. Tightening screw
9. Release button
10. Dovetail platform
1
8
5
6
7
10
9
3
4
2
FIGURE 1

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5. IMAGE INTENSIFIER TUBE
SPECIFICATIONS
The unit utilizes a small size inverting image intensifier with
direct image transfer. The tube contains a microchannel plate,
multi-alkaline metal S-25 (NC tube type) or GaAs (N3 tube type)
photocathode, yellow-green screen and built-in electronic high
voltage DC to DC converter. The input window is made of flat
surface glass. The output window is a concave fibre optics
element with 180° image rotation.
5.1 Main parameters
IIT grade EPM 207G-2-11-22
IIT , lp/mm, min 43 lp/mm
Photocathode operating diameter, mm 17.5
Photocathode type S-25
Photocathode sensitivity, min:
Integral, A/ lm 450-500
Spectral at = 850 nm, mA/W 26-30
Tube light amplification, fl/fc, min 22,000
Image magnification 1
Dark background brightness, max, cd/m2110 
Signal-to-noise ratio (SNR), min 18
Current consumption, max, mA 25 30

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Voltage, V 2.80.8
Length, mm 31.1
Diameter, mm 36.7
Tube life until parameters degrade, hrs 10,000
Storage time, years 15
Operating temperature range, °C -50…+55
5.2 Spatial frequency-contrast characteristics (MTF)
Frequency, lp/mm
2.5 0.83
7.5 0.56
15.0 0.30
5.3 Field of view cleanness
Allowed dot size, mcm
Zone # Diameter, mm >250 > 150-250 > 50-150 > 50-100
1 5.6 0 0 0 1
2 56-14.7 0 0 2 3
3 14.7-17.5 0 1 2 3
Dots with size < 50 mcm are not accepted

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5.4 Schematic drawing

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6. OPERATION INSTRUCTIONS
6.1 Installing battery
Unit is supplied with uninstalled battery.
Prior to installing the battery, make sure the switch (1, Fig.1) is
in the OFF position and the lens cap is on.
The unit can operate on either AA Alkaline or CR-123 Lithium
battery. Lithium battery durability is doubled against the service
time of conventional battery and provides better performance at
low temperatures.
To install battery unscrew the battery compartment cover (6,
Fig.1). When using CR-123 Lithium type battery, remove the
battery type adapter. Observe the polarity indicated on the
housing. Put the battery in and screw the battery cover back on.
6.2 Switching the unit on
In the daytime put on the lens cap with the daylight filter
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 the eyepiece (4, Fig.1). You
should see greenish-lit screen. If the screen is not lit check the
battery.
When the unit is ON user may see either one or two circular
indicators through the eyepiece (Fig. 2). When inactive they are
hardly noticeable. Bright yellow or flashing red spot indicates

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FIGURE 2
IR illuminator indicator (red,
left), Low battery indicator
(yellow, right, optional)
low battery voltage. For an uninterrupted operation keep a fresh
battery ready and replace it on time. Bright red indicator reminds
the user that the IR illuminator is on
(for more details on illuminator see
6.9).
In the daytime with lens cap on it is
normal to observe a fuzzy image.
Switching on the night vision device
in the daytime is intended for testing
purposes only.
The rotating switch has four
positions: “Off”, “Auto”, “On”,
“IR”. In Auto mode the monocular
will switch off automatically when
turned upright. This mode saves
battery life and allows avoiding
greenish shadow on the face, which may disclose the user.
Note: The “Auto” switch position is optional.
6.3 Switching the unit off
After you have finished using the device, turn it off by rotating
switch (1, Fig.1) to OFF position. Put a protective lens cap on the
lens. Remove the battery from the battery compartment to avoid
any damage of the device in case of electrolyte leakage.
6.4 Adjusting to individual vision
Turn on the device. Direct the device at an object placed within
8-15m from the viewer. Obtain the sharpest image possible on

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the eyepiece screen by focusing the eyepiece lens (4, Fig. 1) and
then the objective lens (3, Fig. 1).
6.5 Focusing
To obtain a sharp image at some other distances adjust the lens
focus (3, Fig. 1) leaving the eyepiece setting intact. You should
be able to obtain a sharp image for distances from 2-10m to
infinity.
If you wear eyeglasses or NBC protective mask, you may like to
fold the rubber eyecup.
6.6 Auto shut OFF at bright light
The NV207-G2 monocular has a built-in high light sensor
located near the IR illuminator (2, Fig. 1). This sensor shuts the
monocular off after about 45 second exposure to light exceeding
10-1 lux.
To reset the monocular switch it off and then back on as
described in 6.3 and 6.2.
High-light shut-off feature does not mean that the unit will react
to occasional flashes or bright spots. It protects the tube against
excessive light exposure only.

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FIGURE 3
1. “Swing arm” mount
2. Grooved pad
3. Locking knob
4. Unit groove
5. Flip button
6. US clip mount
6.7 Using the unit with headgear or helmet
The unit is supplied with headgear (5, Fig. 1). Prior to using the
headgear adjust its straps so that the headgear fits the head
comfortably but firmly and does not slide off when you are
moving.
The unit is attached to the headgear with a swing arm mount (1,
Fig. 3). To attach the arm mount to the headgear loosen the
tightening screw (8, Fig. 1) on headgear, slide helmet groove (2,
Fig. 3) onto the rail, and then tighten the screw.
To attach monocular to the arm turn the knob (3, Fig. 3), slide the
arm groove (4, Fig.3) along the dovetail platform of the
monocular (10, Fig. 1), and then release the knob.
Technical
drawing of US
cli
p
moun
t
3
1
6
5
2
4

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To set comfortable eye-relief (the distance between your eye and
the eyepiece), loosen tightening screw (8, Fig. 1) on the headgear
and move the unit, then tighten the locking screw.
To use the unit with PASGT head and helmet mount unscrew the
grooved pad (2, Fig. 3) from the swing arm mount and screw on
the US type clip (6, Fig. 3) using four screws (Fig. 3) instead. US
type helmet clip is optional and must be ordered specially.
To switch between left and right eye, press the flip button (5, Fig.
3) on the mount and rotate it respectively until click.
6.8 Swinging head mounted unit for unobstructed view
When the head mounted unit is not in use you can raise it to clear
the view without taking the headgear off by using the “flip/flop”
feature. To swing the unit from the view press the button (5, Fig.
3) and raise the device until you hear a click.
In “Auto” position of the switch, the monocular will turn off
automatically. Reverse the operation to return the unit to working
position.
6.9 Using IR illuminator
In case of insufficient light when observing a close object turn on
the IR illuminator by turning the switch (1, Fig.1).
Red indicator visible through the eyepiece will warn you when
the IR illuminator is on.
Note: The IR illuminator is visible to anybody equipped with a
night vision device and can disclose the user’s presence.

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6.10 Installation of add-on lenses.
Always make sure that the monocular is switched off when
you put on or take off the add-on lens.
Note: The following procedure is identical for 3x lenses (or any
other add-on lenses).
Turn off the monocular. Remove the lens cap. Press the lens
firmly towards the eyepiece. Do not apply excessive pressure.
Make sure that the lens is fixed well on the monocular. To return
the monocular back to 1x magnification, pull off the lens.
FIGURE 4
NV207-G2 with attached 3x