Newcon Optik Binoculars NVS7 2 4x User Manual

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  
 
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)  
 
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;  
 
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.  
 
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  
110 −3  
16-20  
20  
310 −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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