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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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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
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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 a
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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
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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..............................................
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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
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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. 4
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2. DELIVERY SET Standard delivery set QUANTITY Binocular configuration: 1 NVS 7 unit with 4x, 5x or 8x lens Lens cap 1 Neck strap 1 Soft case 1 Manual 1 Warranty card 1 AA battery 2 Lens cleaning kit 1 Optional accessories Hard case Exact delivery set is subject to the specific contract terms. 5
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3. SPECIFICATIONS Unit specifications 2XT 3XT Model 4x / 5x / 8x 4x / 5x / 8x Image Intensifier Tube Gen. 2+ Gen. 3 (IIT) Apparent field of view 10º / 8º / 5º Eye relief 25 mm 25 mm 4x / 5x / 8x Objective 100 mm - F1.5 / 130 mm - F2.3 / 216.4 mm - F2.0 focal length / F-number Interpupillary distance 57-73 mm Focus range:4x / 5x / 8x 10 m - / 10 m - / 20 m - Dioptric correction ±5 Battery type 2 standard AA batteries Battery life Over 80 hours without IR; over 30 hours
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Main tube parameters Model NVS 7-2 XT NVS 7-3 XT Generation 3 2+ IIT Model NCXT4322 N3XT4322 ITT Resolution, min 57 lp/mm 57 lp/mm Image Intensifier Type 2+ 3 (Generation/Grade) XT XT Photocathode operating diameter, mm 17.5 Photocathode type 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 Image magnification 1x 2 Max dark background brightness 1 10 cd/m Signal-t
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Spatial frequency-contrast characteristic Frequency, lines/mm Contrast transfer coefficient (XT) 2.5 0.88 7.5 0.72 15.0 0.50 Field of view cleanness SPOTS DIAMETER ZONE 1 ZONE 2 ZONE 3 Ø5.6MM Ø5.6-Ø14.7MM Ø14.7-Ø17.5MM IN MICRONS > 230 0 0 0 150 - 230 0 1 1 75 - 150 0 1 2 8
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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 9
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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 10
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1 6 4 3 2 7 5 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 11
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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 o
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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 leak
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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%
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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. 15
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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 ca
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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 optio
