9. ACCEPTANCE CERTIFICATE
OPERATION MANUAL
Image Intensifier Tube
Gen. 2+
Resolution, lines/mm
Photocathode sensitivity, integral, µA/ lm
Light amplification
Required
30
400
Measured
20,000
Gen. 3
Resolution, lines/mm
Photocathode sensitivity, integral, µA/ lm
Light amplification
35
1,000
25,000
Image Intensifier Tube Serial Number: ____________
Date of production: __________ Quality Inspector Signature: ____________
NIGHT VISION DEVICE NVS7-2/4x / NVS7-2/4xHD
Serial Number_________ corresponds to all technical specifications and is
admitted for use.
NIGHT VISION BINOCULARS
NVS7-2/4x / NVS7-2/4xHD
Date of production: _____________ Quality Inspector Signature: _____________
Quality assurance seal
In USA: 2331 Superior Ave. Cleveland, OH 44114
In Canada: 105 Sparks Ave., Toronto, ON M2H 2S5
Tel: (416) 663-6963 Fax: (416) 663-9065
Newcon International ltd. © 2007 Printed in Canada
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CONTENTS
6. TROUBLESHOOTING
1- Overview
The unit does not work.
5.1 Pre-starting procedures
5.2 Operation at night
Check that the battery is installed properly.
Check the charge of the batteries. Replace if it is weak.
i) Application and Advantages
ii) Warning
iii) Precautions
2- Components
3- Specifications
4- Construction
The image does not appear in focus.
6- Troubleshooting
7- Warranty
Bring the inspected object to the center of the image. Turning the eyepieces (6) adjust to
achieve the clearest image on the screen. Then obtain the most clear-cut image of the object
focusing the lens (2). Repeat the steps of focusing if necessary
8- Customer support
9-Acceptance Certificate
5- Operating Instructions
If the view still does not seem in focus, clean the lenses - they could be foggy or dusty.
THANK YOU FOR PURCHASING THE NIGHT VISION BN5-2M. PLEASE DEMAND TO CHECK
THE DEVICE FOR PROPER OPERATION WHEN BUYING IT. PLEASE READ ALL THE
INSTRUCTIONS CAREFULLY BEFORE USING.
Unit flashes
It is normal for the unit to flash within the first 2 minutes of activation. If the flashing continues
afterwards the following is a possible cause: bright environment (even with the caps closed!)
1. OVERVIEW
The night vision NVS7-2/4X / NVS7-2/4XHD is observational binoculars, intended
for examining objects and orientation at nighttime or dark conditions. The unit utilizes a
generation 2+ or 3 image intensifier, which amplifies available moonlight, starlight or man-
made light. The binoculars were designed to be easy to use, and provide many years of
operation.
Condensation accumulates on the parts.
It is O.K. to use the unit in cold. However, when the unit is brought from the cold into a warm
environment, it has to warm up for up to 2 hours (not minutes!).
Only then it is allowed to turn it ON again.
Some of the typical activities where the binoculars will be useful:
•
•
•
•
•
•
Law enforcement
Wildlife observation
Security
Search and rescue
Hunting
Photography (Dark room operation)
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Features
5.2 Operation at Night
•
•
Waterproof construction
Unscrew the lens covers from the lens. Turn on the device by turning the
switch to the on position. In case of insufficient lighting when observing an
object which is situated not far from the viewer, turn on the I/R illuminator by
turning the switch to the next setting.
Note: The illuminator will be activated only if the unit has been already
switched on by switch.
Note: When looking directly in front of the binoculars operational
illuminator appears as a red dot. The illuminator can be also detected using
night vision device. Therefore, if you need to remain undetected, use the
illuminator with caution.
Built-in Infra Red illuminator allows observations in total darkness
(i.e. basement, cave or dark room);
•
•
•
Independently adjustable eyepieces;
Lightweight and comfortable;
Soft rubberized eye pieces makes the viewing more comfortable;
Warning!
After transportation or keeping the device at temperature lower than -25°C (-13°F), the device must be
warmed up to ambient temperature, from -25°C (-13°F) to +40°C (104°F),
relative humidity of 80% max. at 20°C (68°F), for at least 2 hours.
Precautions
NVS7-2/4X / NVS7-2/4XHD is a sophisticated precision optical instrument
If brightness of the screen is decreasing, replace the batteries. After operation the unit will
automatically turn off after few minutes, till the complete discharge of the units power. Put
protective lens caps on the lenses. This feature can be used to economically utilize the battery’s
power by periodically switching on and off the device during operation. After operation remove
the battery from the battery compartment to avoid any damage of the device in case of
occasional leakage of electrolyte from the battery.
equipped with electronics.
Therefore, it should be handled with due care.
•
Keep your device away from direct sunlight, impacts, dust, moisture,
and sudden changes of temperatures.
•
Do not touch the optical surfaces with fingers.
Doing so may damage the anti-reflection coating.
•
•
•
•
•
Cleaning of optical surfaces is allowed only with professional camera lens cleaning supplies.
To clean the exterior of the device, use only a soft clean cloth.
Do not take the cover off the lens if not necessary.
Keep away from heating appliances and central heating.
Make sure to switch off the unit and remove the batteries during periods of non-operation
and when storing the device for long period of time.
•
Do not apply superfluous efforts at work with lens assembly, agile elements and thread
connections.
•
Due to considerable optical magnification of the eye-piece some small structures inside the
tube coating in the form of dark and/or white points may be seen in the field of view which does
not affect the serviceability of the device;
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2. COMPONENTS
NVS7-2/4X / NVS7-2/4XHD is supplied with the following components:
5. OPERATION INSTRUCTIONS
NAME
BN5-2M
Head Set (optional)
Lens caps
Manual
QUANTITY
WARNING! NEVER OPERATE YOUR NIGHT VISION DEVICE IN DAYLIGHT
AREAS WITHOUT THE LENS COVER ON!
1
1
1
1
1
NEVER DIRECT THE LENS IN THE DIRECTION
OF BRIGHT LIGHT!
Warranty Registration Card
5.1 Pre-starting procedures:
1. Unpack the device. In order to install the battery, first make sure the
switch (1) is in the OFF position. Unscrew the battery house cover (5), and install 2
fresh AA batteries. Observe the correct polarity indicated on the housing. Screw the
battery house cover back on. Check the functioning of the device by switching it on
(rotate switch 1) and looking through eyepieces (4). (Make sure the lens cap is on
while operating during the daytime). If power supply and the batteries are O.K., you
will see greenish-lit screen. If the screen is not lit, check the batteries. Replace the
batteries if necessary. If everything works, now is a great time to fill the warranty card.
3. SPECIFICATIONS OF NVS7-2/4x / NVS7-2/4xHD
Image Intensifier
Generation 2+ or 3
Magnification:
4
Field of View
40°
Focus range, m
0.25-∞
Interpupillary distance
Dyoptric correction
Power supply
58-72 (Automatic)
± 5
3V (2AA)
Battery life, hours
Dimensions, inches
Dimensions, mm
Weight, just the goggles
Gross shipping weight
20 hours with I/R
5.9”x4.7”x2.2”
150x120x55
1 lb.; 0.480 kg
2.4 lb.; 1.1 kg
50 hours without I/R
NOTE: As the design is being continuously improved some descriptions
may differ from those given above.
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IMAGE INTENSIFIER TUBE SPECIFICATIONS
The unit is utilizing a small size image intensifier with direct image transfer.
The tube contains a microchannel plate, multi-alkaline metal cathode, yellow-green color
screen, built in electronics high voltage DC to DC converter and flat surface glass
input-output windows.
Spatial frequency-contrast characteristic
Frequency, lines/mm
Contrast transfer
Contrast transfer
Coefficient (Gen. 3)
0.86
0.58
0.28
Coefficient (Gen. 2+)
2.5
7.5
15.0
0.83
0.56
0.26
Main parameters:
Field of view cleanness
Zone
#
Gen. 2+
Zone
Diameter,
Mm
0 – 9.0
9.0 - 14.4
14.4 -18.0
Maximum diameter of defects
Admitted total
Image Intensifier Type (Generation)
Photocathode operating diameter, mm
Photocathode type
Resolution, lines/mm
Photocathode sensitivity, min:
Integral, µA/ lm
2+
18
S-25
30-64
3
Neglected
Admitted
area of defects,
Q-ty
mm2
0.15
0.30
0.50
∅, mm
A3B5 (GaAs)
45-64
1
2
3
0.10
0.12
0.15
0.15
0.25
0.35
2
3
3
400-650
15
1300-2200
90
25-30000
Gen. 3
Spectral at λ = 850 nm, mA/W
Light amplification
Image magnification
1
2
3
0 – 8.75
8.75 – 14.0
14.0 – 18
0.06
0.08
0.10
0.15
0.25
0.35
1
2
3
0.072
0.27
0.45
20-26000
1
Dark background brightness, max, cd/m2
Signal-to-noise ratio, min
Current consumption, max, mA
Voltage, V
1⋅10 −3
16-20
20
3⋅10 −3
16-24
25
4. CONSTRUCTION
2
3
2.8 ± 0.8
55
5
Weight, g
Dimensions
Length, mm
Diameter, mm
Tube life until reduced parameters, hrs
Keep time, years
4
22.5
43.0
10,000
12
1. On-Off, I/R Switch
2. Mounting Socket
3. Eye-piece adjustments
4. Eyepieces
10,000
15
± 50
Ambient temperature range, °C
± 40
5. Battery House Cover
6. Objective Lens focus
1
6
Figure 1
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