Operation Manual
NIGHT VISION BINOCULARS
NVS 7-4x / NVS 7-5x / NVS 7-8x
NSN: 5855-20-000-8284
105 Sparks Ave., Toronto, ON, M2H 2S5, Canada
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Precautions
NVS 7 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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CONTENTS
1. OVERVIEW............................................................. 3
2. DELIVERY SET...................................................... 5
Standard delivery set........................................................ 5
Optional accessories ........................................................ 5
3. SPECIFICATIONS .................................................. 6
Unit specifications ........................................................... 6
Main tube parameters ...................................................... 7
Spatial frequency-contrast characteristic ......................... 8
Field of view cleanness.................................................... 8
4. UNIT DESIGN......................................................... 9
5. OPERATION INSTRUCTIONS............................ 12
Installing battery............................................................ 12
Switching the unit on..................................................... 12
Switching the unit off .................................................... 13
Operating at night .......................................................... 13
Adjusting to individual vision........................................ 13
Focusing ........................................................................ 14
Interpupillary distance ................................................... 14
Installation of interchangeable lenses............................ 14
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6. TROUBLESHOOTING ......................................... 16
No green light through eyepieces .................................. 16
Image is unclear............................................................. 16
Image flashes................................................................. 16
Condensation accumulates on the parts......................... 16
Visibility decreased or disappeared ............................... 16
7. WARRANTY......................................................... 17
8. CUSTOMER SUPPORT........................................ 18
9. ACCEPTANCE CERTIFICATE............................ 19
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1. OVERVIEW
NVS 7 (the unit) is optoelectronic binocular intended for
observation of objects and orientation at night or under dark
conditions. The unit is equipped with a generation 2+ or 3 image
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.
Some typical activities where NVS 7 can be useful:
Law enforcement
Wildlife observation
Security
Search and rescue
Hunting
Features
Built-in infrared illuminator allows observation in total
darkness (i.e. cave or dark room);
Soft rubber eyecup allows comfortable viewing
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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
Standard delivery set
QUANTITY
1
Binocular configuration:
NVS 7 unit with 4x, 5x or 8x lens
Lens cap
1
1
1
1
1
2
1
Neck strap
Soft case
Manual
Warranty card
AA battery
Lens cleaning kit
Optional accessories
Hard case
Exact delivery set is subject to the specific contract terms.
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3. SPECIFICATIONS
Unit specifications
2XT
4x / 5x / 8x
3XT
4x / 5x / 8x
Model
Image Intensifier Tube
(IIT)
Gen. 2+
Gen. 3
Apparent field of view
Eye relief
10º / 8º / 5º
25 mm
25 mm
4x / 5x / 8x Objective
focal length / F-number
100 mm - F1.5 / 130 mm - F2.3 / 216.4 mm - F2.0
Interpupillary distance
Focus range:4x / 5x / 8x
Dioptric correction
Battery type
57-73 mm
10 m - / 10 m - / 20 m -
±5
2 standard AA batteries
Battery life
Over 80 hours without IR; over 30 hours with IR
Low battery indicator
IR ON indicator
Waterproof
√
√
MIL-STD-810
Sizes: 4x / 5x / 8x
Weight: 4x / 5x / 8x
165x120x70 mm / 230x136x82 / 240x130x130 mm
0.690kg / 0.800kg / 1.470 kg
NOTE: As the design is being continuously improved the actual
specifications may be better than those given above.
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Main tube parameters
Model
NVS 7-2 XT
NVS 7-3 XT
Generation
3
2+
IIT Model
NCXT4322
57 lp/mm
N3XT4322
57 lp/mm
ITT Resolution, min
Image Intensifier Type
(Generation/Grade)
2+
3
XT
XT
Photocathode operating diameter, mm
Photocathode type
17.5
S-25
GaAs
Photocathode sensitivity, min :
Integral
600 A/ lm
1,600 A/ lm
45 mA/W
180 mA/W
Spectral at = 850 nm
Light amplification
>35,000 fl/fc
1x
110 cd/m2
Image magnification
Max dark background brightness
Signal-to-noise ratio
Current consumption, max
Voltage
18
20
20 mA
25 mA
2.80.8 V
MTBF, hours
10K
10K
Operating temperature range
-50°C … +55°C
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Spatial frequency-contrast characteristic
Frequency, lines/mm
Contrast transfer
coefficient (XT)
2.5
7.5
0.88
0.72
0.50
15.0
Field of view cleanness
SPOTS DIAMETER
IN MICRONS
> 230
ZONE 1
ZONE 2
ZONE 3
Ø5.6MM
Ø5.6-Ø14.7MM Ø14.7-Ø17.5MM
0
0
0
0
1
1
0
1
2
150 - 230
75 - 150
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4. UNIT DESIGN
4
1
3
2
5
6
NVS7 – 4x
1. On-Off, IR switch
2. Lens focus adjustment ring
3. Eyepiece focus adjustment rings
4. Eyepieces
5. Battery compartment cover
6. Objective lens
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4
3
1
5
2
6
NVS7 – 5x
1. On-Off, IR switch
2. Lens focus adjustment ring
3. Eyepiece focus adjustment ring
4. Eyepieces
5. Battery compartment cover
6. Objective lens
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1
6
4
3
5
2
7
8
NVS7 – 8x
1. On-Off, IR switch
2. Lens focus adjustment ring
3. Eyepiece Focus adjustment rings
4. Eyepieces
5. Battery compartment cover
6. Objective lens
7. Objective lens cover
8. Tripod mount
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5. OPERATION INSTRUCTIONS
Installing battery
Unpack the device. Unit is supplied with battery not installed.
Prior to installing the battery, make sure the switch is in the
OFF position and the lens cap is on.
Unscrew the battery compartment cover (5) and install 2 fresh
AA batteries. Observe the correct polarity indicated on the
housing. Screw in the battery compartment cover back.
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 (1) and look
through eyepiece (4). You should see
greenish-lit screen. If the screen is not
lit check the battery.
When the unit is ON user may see a
circular indicator through the eyepiece
(Fig. 1). It is hardly noticeable when
not active.
FIGURE 1
Low battery indicator
Flashing indicates low battery. For
uninterrupted operation keep fresh
batteries ready and replace them in
time.
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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.
Switching the unit off
After you have finished using the device, turn it off by rotating
switch (1) to OFF position. Put protective lens cap
(ex.NVS7-8x, 7) on the lens. Remove the battery from the
battery compartment to avoid damaging of the device in case of
electrolyte leakage.
Operating at night
Take off the lens cover from the lens (6). Turn on the
device using switch. If lighting is insufficient, turn on the
IR illuminator (1) by turning switch. The red indicator
(Fig. 1) 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.
Adjusting to individual vision
Turn on the device. Direct the device at an object placed within
8-20 m from the viewer. Obtain the sharpest image possible on
the eyepiece (4) screen by focusing the eyepiece lens (3) and
then the objective lens (2).
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Focusing
To obtain sharp image at other distance adjust the lens focus
(2)leaving eyepiece setting intact. You should be able to obtain a
sharp image for distances from 2-20 m to infinity, depending on
the objective lens magnification.
If you wear eyeglasses or NBC protective mask, you may like to
fold the rubber eyecup.
Interpupillary distance
The unit is designed to accommodate interpupillary distance of
57-73 mm without any additional adjustment and should be
comfortable for 99% of adults.
Installation of interchangeable lenses
Do not apply an excessive force when changing the lenses.
1. Make sure the unit is off (1).
2. Remove the lens cap
3. Detach the current lens: hold the lens by its base 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.
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Warning: Forcing installation of the lens may damage
the thread and cause costly repairs to both the
binoculars and the lens that are not covered by
warranty.
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6. TROUBLESHOOTING
No green light through eyepieces
Check that the batteries are installed properly.
Check the charge of the batteries. Replace them if they are weak.
Image is unclear
Check if the lenses are foggy or dusty. Clean them if necessary.
If the image is still unfocused – adjust the eyepieces; see 5.5 and
5.6 for details.
Image flashes
Image may flash during the first two minutes after activation. It
may continue flashing if exposed to bright light (even with the
lens cap on!).
Condensation accumulates on the parts
When the unit is brought from the cold into a warm environment
internal condensation may appear. The unit has to be warmed up
for up to two hours to regain full operational capacity.
Visibility decreased or disappeared
Bright light sources (the Moon, projectors or headlights) may
cause visibility to degrade or even completely disappear. Move
the device away from the light source immediately. The image
will be restored within two minutes.
Adverse atmospheric conditions such as fog, haze or extremely
dark environments will decrease visibility.
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7. WARRANTY
NEWCON warrants this product against defects in materials and
workmanship for one year from the date of the original purchase.
Longer warranty is available, subject to the terms of the specific
sales contract. Should your Newcon product prove to be
defective during this period, please deliver the product securely
packaged in its original container or an equivalent, along with the
proof of the original purchase date, to your Newcon Dealer.
Newcon will repair (or, at its option, replace with the same or
comparable model), the product or part thereof, which, on
inspection by Newcon, is found to be defective in materials or
workmanship.
What This Warranty Does Not Cover:
NEWCON is not responsible for warranty service should the
product fail as a result of improper maintenance, misuse, abuse,
improper installation, neglect, damage caused by disasters such
as fire, flooding, lightning, improper power supply, or service
other than by a NEWCON Authorized Service.
Postage, insurance and shipping costs incurred while presenting
your NEWCON product for warranty service are your
responsibility.
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8. CUSTOMER SUPPORT
Should you experience any difficulties with your Newcon Optik
product, consult this manual first.
If the problem remains, contact our customer support department
at +1(416) 663-6963 or toll free at 1-877-368-6666 (North
America only). Our operating hours are 9am-5pm,
Monday - Friday, Eastern Standard Time.
Under no circumstances should the equipment be sent to
Newcon without authorisation from our technical support
department.
Newcon accepts no responsibility for unauthorized returns.
To locate NEWCON Authorized Dealer call
+1(416) 663-6963 or fax +1(416) 663-9065
Email: [email protected]
The defective products should be shipped to:
US Customers:
2498 Superior Ave. Cleveland, OH 44114, USA
From all other countries:
105 Sparks Ave., Toronto ON, M2H 2S5, CANADA
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9. ACCEPTANCE CERTIFICATE
Image intensifier tube serial number: _____________________
Minimum
57
Measured
Resolution, lp/mm
Photocathode sensitivity, integral,
A/lm
600 (Gen. 2+)
1600 (Gen. 3)
Light amplification
35000
Date of production:__________________________________
Quality Inspector’s signature: ___________________________
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NIGHT VISION DEVICE
NVS 7-2/4x XT
NVS 7-3/4x XT
NVS 7-2/5x XT
NVS 7-3/5x XT
NVS 7-2/8x XT
NVS 7-3/8x XT
Unit serial number: _________________________________
The unit complies with all technical specifications and has
passed the inspection.
Date of production: _________________________________
Quality Inspector’s signature: __________________________
Quality Assurance Seal
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NEWCON OPTIK
Printed in Canada
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