Newcon Optik NIGHT WITNESS User manual

Operation Manual
NIGHT VISION SYSTEM
NIGHT WITNESS
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 be covered by cap. A tiny hole in
the 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.
ALWAYS remove battery when not in use for a long
period.
ALWAYS keep the objective lenses covered when not
in use.
ALWAYS store the device in a warm dry place.

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PRECAUTIONS
Night Witness is a sophisticated precise optical
instrument equipped with electronics.
Therefore, it should be handled with due care.
Avoid strong heat, direct sunlight, impacts, dust,
moisture and sudden changes of temperatures. Keep
it in mind that, although being very durable, Night
Witness contains fragile components.
Do not touch the optical surfaces with fingers. Doing
so may damage the antireflection coating.
Cleaning of optical surfaces should only be
performed with professional camera lens cleaning
supplies.
Use only a soft clean cloth to clean the exterior of the
device.
Make sure to switch off the unit and remove the
battery during periods of non-operation and when
storing the device for long period of time.
Do not apply unnecessary pressure to the lens
assembly, agile elements & thread connections.

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TABLE OF CONTENTS
1. OVERVIEW................................................................5
2. DELIVERY SET.........................................................7
2.1 Standard delivery set................................7
2.2 Optional accessories ................................7
3. SPECIFICATIONS .....................................................8
4. UNIT DESIGN............................................................9
5. OPERATION INSTRUCTIONS...............................11
5.1 Precautions.............................................11
5.2 Operational procedures ..........................11
5.3 Low Battery Indicator............................13
5.4 Indicator High-Light cut off..................13
5.5 Use of accessories..................................14
7. MOISTURE COLLECTOR CAP REPLACEMENT19
8. WARRANTY............................................................20
9. CUSTOMER SUPPORT...........................................21
10.ACCEPTANCE CERTIFICATE ..............................22

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1. OVERVIEW
Compact lightweight night vision system Night Witness is
intended for low light observation & photo/video
surveillance. This miniature monocular device is
equipped with high gain, high resolution Image Intensifier
of 2+ Generation..
Night Witness is the most versatile observation &
orientation electro-optical system for law-enforcement
and rescue team. Durable waterproof corrosion-proof
body made from light aluminum and titanium alloys
guarantees long trouble-free operation. Replaceable
desiccant cartridge improves its reliability substantially.
Night Witness is distinguished by its handy modular
design along with an intelligent control system.
It can be equipped with wide variety of accessories
including interchangeable
lenses, adapters for coupling CCTV, 35 mm, digital photo
and video cameras.

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Night Witness is provided with a unique high-light cut off
circuit to protect image intensifier tube.
‘Intellectual’ TTL sensor measures a luminance level
directly on the photocathode surface. If it exceeds the
overload capacity for an Image Intensifier used in the
device– blue LED in a field of view warns an operator
that after 5 – 7 seconds power supply of the device will be
switched off. When the brightnesss goes down below that
level – the Image Intensifier power supply recovers
automatically. So the operator has plenty of time to
protect the device from bright light sources and at the
same time not to lose the sight of an object to be
controlled.

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2. DELIVERY SET
2.1 Standard delivery set
QUANTITY
Night Witness 1
100mm / F1.7 standard lens 1
Interchangeable 25mm / F1.4 lens 1
Adapter for photo-video & CCTV
Cameras with 5 step-up rings
1
Wrist strap 1
Desiccant cartridge 2
Spanner for the cartridge 1
AA Batteries 2
Cleaning tissue 1
Users manual 1
Soft case 1
2.2 Optional accessories
Interchangeable tele-lens External power adapter
External IR illuminator Car adapter

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3. SPECIFICATIONS
Magnification 1x 5x
Image Intensifier Tube (IIT) 18 mm Gen. 2+
Resolution, min 57 lp/mm 57 lp/mm
Focal length / F Number 25 mm / F1.4 100 mm / F1.7
Field of view 40° 10.5°
Focus range 3 m - infinity
Focal length 20 mm
Eye relief 16 mm
Exit pupil 7 mm
Dioptric adjustment range -4 ... +4
Operation temperature -40°C … +55°C
Storage temperature -40°C … +65°C
Relative humidity Up to 98%
Lens mount C-mount, 1” – 32 TPI
Battery type 1xAA or external power supply
3.5-15 V, 50 mA
Battery life 10 hours (5 hours with infrared illuminator)
Tripod socket standard 1/4”, 20 TPI
Dimensions 104x70x45 mm 220x70x60 mm
Weight 390 g 540 g

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4. UNIT DESIGN
Stra
p
holde
r
Battery house cover
I/R Switch
ON / OFF Switch
Infrared ON Indicator
(Yellow) Low battery indicator
(Red)
Power ON Indicator
(Green)
High Light cut off indicator
(Blue)

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I/R Illuminator
Tripod socket ¼”
Device
Focusing ring
Objective Lens
Dioptric adjustment ring Eye piece
ON / OFF Switch
Cartridge

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5. OPERATION INSTRUCTIONS
5.1 Precautions
Never disassemble the unit by yourself.
There are no wires or modules that require user cleanning
or adjustment.
5.2 Operational procedures
Twist off the battery house cap.
Insert one battery type «AA» 1.5V
make sure that polarity is correct.
Screw the battery cap back on.
Take the unit into your hand. Put on the wrist wrap.
Take the protective cover off the objective lens.
NEVER OPERATE YOUR NIGHT VISION DEVICE
IN DAYLIGHT WITHOUT THE LENS COVER ON
Turn ON the unit, by moving the position of the
switch to (ON).
The Green Indicator light will come on and will be
visible at the top portion of the ocular
Adjust the ocular to your eye sight by rotating the
dioptric adjustment ring.
Aim the unit towards the object of your surveillance.

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NEVER DIRECT THE LENS IN THE
DIRECTION OF BRIGHT LIGHT
For maximum performance focus in on your
object by rotating the focusing ring on the
objective lens.
For IR operation: depress fixated button IR
illuminator , keeping the button depressed move it
in to
IR “ON” position. At this stage the Yellow light
indicator light will come on the top portion of the
ocular.
After the operation make sure that the unit is
turned OFF, by moving the switch to OFF
position on the unit.
Close the objective cover.

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5.3 Low Battery Indicator
Low battery indicator is RED and is located
in ocular field of view, the indicator will
start to blink if voltage of the power supply
is between 0.9 - 1.0V, in this case the Green
unit ON indicator is off. If the voltage is very
low (less than 0.9V), all indicators of NVD (Night Vision
Device) will automatically turn off. Turn OFF the unit
and replace the battery.
5.4 Indicator High-Light cut off
High-light indicator is blue color and is
located in the ocular field of view; this
indicator light will blink if the unit is
exposed to bright light source that can
damage the unit. If the unit is exposed
continuously for more than 5 - 7s, the unit
will turn OFF and the indicator light will
glow continuously. At low light levels
below normal parameters High-Light indicator will turn
off, and the unit is operational again automatically.
Should you require to operate the unit in high light
situations cover the objective lens with protective cap.

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5.5 Use of accessories
Wrist strap
Insert the end of the wrist strap in the hole located on
the back of the unit.
Tighten the wrist strap by passing is through hinge,
as it is shown on the picture in the right.
Mounting the unit on a tripod
Align tripod screw with tripod thread 1/4"located on
the right hand side of the body of the unit.
Tighten the tripod screw.
Place the tripod on a stable ground and fully extend
the legs of a tripod.

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Using the unit with external power supply of car
adapter
Remove battery house cover.
Remove the battery «AA» and insert a external
power adapter (optional). Lock the cap of an adapter
into place.
Connect the power source to slot of external power
supply cable (or car adapter) with a standard low
voltage plug type 5,5/ 2,1.
Connect second end of the cable to external power
source, make sure that polarities are correct or
connect the cable to cigarette lighter slot.
Turn ON the unit.

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Operation with Photo cameras, Video Cameras and
CCTV-Systems
Remove the ocular from the unit by unscrewing it
from the body of the unit.
Install instead of the ocular, proper photo-video or
CCTV-adapter.
Connect the NVD with an adapter to photo-, video-
or CCTV - camera (further referred to as camera)
with reference to instruction related to specific
adapter.
If required place the unit along with the camera on a
tripod.
Turn on the unit and the camera.
Focus the unit with the help of focusing ring on a
adapter or camera.
Point the NVD with the camera on the object of your
choice.
Establish maximum resolution of the image by
focusing the objective ring located on the objective
lens of the unit.
At this stage you can take photos or make a video at
night.

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Environmental Conditions
Night Witness functions equally reliable in normal as well
as extreme weather conditions.
Although the unit performs reliably in harsh weather
conditions and high moistures it is expected that user will
do due diligence and pay more close attention to
operation instructions, in order to keep unit in good
working order and prevent early demise of the unit.
Low temperature operation
Unit functions properly at temperatures below -20°C.
In low temperatures the objective focusing ring as
well as dioptric correction ring may become stiffer.
Do not force the adjustment rings as they may
become nonoperating.
The unit should never be subjected to extreme
weather fluctuations. If it is required to move the unit
from one extreme environment to other, the unit
should be placed in waterproof container and closed
it tight etc. The container should not be opened until
it reaches same temperature as the new environment,
if this is not performed the unit will have moisture
condensation on optical surfaces.

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The capacity of the battery in low temperature is
decreased. If possible the batteries should always be
protected from low temperatures.
High temperature operation
Unit functions properly at temperatures up to +40°C.
If possible please make sure that battery is protected
from high heat and direct sun light.
Operation in high moisture environments
In the areas of high moisture the optical surfaces of the
unit should always be clean and dry.
Moisture on surfaces of the unit can be discarded with
clean dry cloth.
Optical surfaces should be cleaned with special optical
cloth.

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7. MOISTURE COLLECTOR CAP
REPLACEMENT
Replacing the moisture cap
Moisture cap should be replaced in a clean dry place.
New Moisture cap can be exposed for no more than 1-2
minutes.
The following is required for replacement of cartridge:
Prepare spare cartridge supplied with your unit;
With supplied key unscrew the moisture collector
cartridge that is full of moisture from the NVD and
immediately replace it with a new cartridge;
Screw in the replacement cartridge until rubber O-
ring is visibly deformed.
In order to restore moisture filled cartridge it is
required to unscrew the cap of Moisture collector
cartridge with the key provided, empty the silica gel
into clean metallic container and place the container
in the heat source (i.e. electric stove, camping stove
etc.)
Silica gel can never be directly
exposed to fire. To restore silica
gel the temperature should be
between 150 to 170°Ñ. Silica gel
will dry with in 3 to 4 hours.