AVIATOR’S NIGHT VISION
GOGGLES NVS 6
105 Sparks Ave., Toronto, ON, M2H 2S5, Canada
Operation Manual
WARNING
Equipment limitation
To avoid personal injury and property damage when
using the NVS-6, carefully read and understand the
following safety precautions.
The equipment requires some night light (moonlight,
starlight, etc) to operate. The performance level depends on
the light level.
Night light is reduced by such factors as passing cloud
and objects that produce shadows.
The equipment is less effective viewing into shadows
and other darkened areas.
The equipment is less effective through rain, fog, sleet,
snow, smoke and other reflective materials.
The equipment has a field of view limited to 40°. System
operation requires continuous side-to-side head
movements for optimal operation.
If eyeglasses are worn, the upper rims of the eyeglasses can
obscure the low-battery indicator.
Do not use mercury or rechargeable NiCd batteries.
Using any batteries other than AA Lithium or Alkaline,
could result in a system failure.
Do not carry batteries in pockets containing metal objects
such as coins, keys, etc. Metal objects can cause the batteries
to short circuit and become very hot.
1
TABLE OF CONTENTS
1. INTRODUCTION ............................................................... 4
1.1 SCOPE .................................................................. 4
1.2 DESCRIPTION OF MAJOR COMPONENTS .... 6
1.2.1 Mount assembly .................................................... 7
1.2.2 Power pack ............................................................ 8
1.2.3 Low-battery indicator ............................................ 9
1.2.4 Carrying case ........................................................ 9
1.3 EQUIPMENT DATA ........................................... 9
1.4 MECHANICAL FUNCTIONS ........................... 11
1.5 OPTICAL FUNCTIONS .................................... 12
1.6 ELECTRICAL FUNCTIONS ............................. 13
1.6.1 Power source ....................................................... 13
1.6.2 Electrical function ............................................... 13
1.6.3 Electronic circuit ................................................. 14
1.6.4 Image intensifier's power supply function .......... 14
1.6.5 Low-battery indicator .......................................... 15
2. OPERATING INSTRUCTIONS ....................................... 16
2.1 OPERATOR CONTROLS & ADJUSTMENTS 16
2.2 OPERATIONAL CHECKOUT PROCEDURES 18
2.2.1 General ................................................................ 18
2.2.2 Warnings and cautions ........................................ 18
2
Explanation of table entries ................................. 18
2.2.3
2.3 ASSEMBLY & PREPARATION FOR USE ...... 23
2.3.1 Batteries and power pack installation. ................. 24
2.3.2 Low Battery indicator check. .............................. 26
2.3.3 Attaching the Binocular to the Mount ................. 28
2.4 OPERATING PROCEDURES ........................... 29
2.4.1 Setting the controls and adjustments ................... 29
3. MAINTENANCE INSTRUCTIONS ................................ 35
3.1 Lubrication Instructions ...................................... 35
3.1 Troubleshooting procedures ................................ 35
3.3 Maintenance procedures ..................................... 38
4. WARRANTY ................................................................. 39
5. CUSTOMER SUPPORT ............................................... 40
6. ACCEPTANCE CERTIFICATE ................................... 41
3
1. INTRODUCTION
1.1 SCOPE
This manual provides instructions for the operator to use and
maintain the Aviator's Night Vision Goggles Model NVS 6
(Fig.1-1).
The NVS 6 is a self-contained, helmet-mounted passive night
vision goggles that provides the capability for pilots to fly in
terrain flight modes at night.
The system amplifies ambient light from sources such as the
moon, stars and sky glow, so the viewed scene becomes clearly
visible to the operator.
The NVS 6 has the following important features:
Powered by batteries
Low-battery indicator on the helmet mount blinks, if the
battery voltage drops below safe limits
Eye-span, vertical distance, tilt, eye relief, diopter and focus
adjustable
Goggles may be flipped up and stored away from the eyes in
an emergency.
4
Carrying case
Lens tissue
Neck cord
Batteries
cartridges
Goggles assembly
Mount assembly
Counter weight
Figure 1-1. Aviator's Night Vision Goggles
model NVS 6, standard set.
5
Operator's
manual
Screwdriver
Power pack
1.2 DESCRIPTION OF MAJOR COMPONENTS
No. DESIGNATION P/N
1 NVS - 6 GOGGLES 305-21-10 000
2 NVG POWER PACK 306-00-00-000
3 HELMET MOUNT 305-21-20-000
4 CARRYING CASE 305-23-00-000
Goggles assembly:
The goggles assembly (Fig.1-2) consists of two identical
monoculars mounted under an adjustment shelf. The monoculars
may be moved sideways (eye span). Each monocular is
comprised of three primary subassemblies: objective lens
assembly, monocular housing with image intensifier assembly,
and an eyepiece lens assembly. The adjustment shelf contains a
connection socket that allows quick and easy, mechanical and
electrical interconnection of the goggle assembly with the mount
assembly.
Monocular
Connection
socket
Eye-span knob
Eyepiece
assembly
Eye-span knob
Objective lens
assembly
Figure 1-2. Goggles assembly
Adjustment
shelf
6
1.2.1 Mount assembly
The mount assembly or the mount (Fig.1-3) attaches to the
existing visor guard of helmets and contains a vertical adjustment
for moving the goggles up or down, a fore-and-aft adjustment for
optimal viewing of the field of view and tilt adjustment for
optimal line-of sight viewing. It also allows the goggles to be
stowed in the up position away from the eyes and to be pulled off
or to break away during a crash load of 10g force or more. The
bottom of the mount incorporates: a low-battery indicator (red
LED) that either comes on or blinks to alert the pilot when
remaining battery life is approximately 30 minutes; a connector
plug that provides the electrical contacts and mechanical quick
interconnection mechanism for goggles.
Connector plug
Figure 1-3. Mount assembly
7
p
1.2.2 Power pack
The power pack (see figures 1-4a ÷ 1-4c) consists of two battery
compartments. Each of battery compartments accepts two AA
size, 1.5V batteries used to power the system. Also the power
pack consists of the ON-OFF-ON power selector switch and lowbattery indication circuit. The power pack output is connected
through cable to the helmet mount assembly.
Figure 1-4a. Power pack
Figure 1-4b. Two battery
artments
com
ON-OFF-ON
switch
Battery
compartment
8
Figure 1-4c. Power pack
interconnection
1.2.3 Low-battery indicator
The low-battery indicator is located on the bottom of the mount
(Fig.1-3). It comes on or blinks, when the active battery voltage
drops to 2.1 Vdc, signalling the user to switch the power pack
ON-OFF-ON switch, to the reserve battery compartment.
1.2.4 Carrying case
The carrying case is made of nylon cloth with foam inserts for
protection of the NVS 6 in case of transportation and when not in
use. The carrying case also contains the operator's manual and
lens tissue.
1.3 EQUIPMENT DATA
The following tables provide information pertaining to the
operational, electrical, mechanical, optical and environmental
characteristics of the NVS 6.
Table 1-1 Operational adjustment limits
ITEM LIMITS
Vertical 18mm total travel
Fore and aft 27mm total travel
Eye span 52mm to 72mm
Tilt 10° total travel
Diopter Adjustment Range -6 …+2
Objective focus 0.25m to infinity
9
Table 1-2 Electrical data
ITEM LIMITS
Voltage requirement 3.0 Vdc, nominal
Current 60 mA, maximum, steady state
Batteries life @ 20ºC:
- Alkaline
- Lithium
25 hours, minimum
30 hours, minimum
Table 1-3 Mechanical data
ITEM LIMITS
Goggles breakaway force 10 g to 15 g
Goggles weight 550 grams
Table 1-4 Optical data
ITEM LIMITS
Magnification Unity (1X)
Field of view 40°
Table 1-5 Environmental Data
ITEM LIMITS
Operating temperature -32°C to 52°C
Storage temperature -35°C to + 65°C
Illumination required Overcast starlight to moonlight
10
1.4 MECHANICAL FUNCTIONS
The mechanical functions allow adapt the NVS 6 to each
individual. These functions include: eye-span, vertical position,
tilt, fore-and-aft, eyepiece focus and objective lens focus
adjustments. The mechanical controls are identified in Fig.1-5.
Figure 1-5. Mechanical Controls for NVS 6
11
1.5 OPTICAL FUNCTIONS
NVS 6 assembly (the goggles) is an electro-optical system
consisting of two monoculars with identical optical terrains and
functions (Fig.1-6). Each monocular has an objective lens, an
image intensifier assembly and an eyepiece lens.
The objective lens collects the ambient light reflected from the
scene by the moon, stars, or night sky glow, inverts the image
and then focuses the image on the image intensifier. Inside the
image intensifier, a photocathode converts the light into
electrons; a micro channel plate amplifies the electrons image
resulting in the electron striking a phosphor screen.
The phosphor screen creates a visible image, which in turn is reinverted by fiber optics and transmits to the eyepiece, where the
operator can see the intensified image in its proper 1:1
perspective (unity magnification).
12
1.6 ELECTRICAL FUNCTIONS
1.6.1 Power source
The system is powered by two 1.5V alkaline or lithium
replaceable batteries (see Fig.1-7), inserted in power pack.
1.6.2 Electrical function
Power from the batteries is supplied to the components through
the power pack's 3-positions (ON-OFF-ON) power switch as
follows. In either of ON-positions - power is supplied from the
appropriate battery compartment to power up the goggles.
When the voltage drops to approx. 2.1 Vdc, a low-battery
indicator at the base of the mount assembly blinks, indicating
approx. 30 minutes of operating time left on that battery
compartment.
In OFF-position - the system is not energized from either battery
compartment. With the switch in either of the ON-positions,
power from the battery compartment is applied through the
power cable, through the matching contacts in the mount to the
matching contacts inside the monocular onto the image
intensifier assembly (Fig.1-7).
13
1.6.3 Electronic circuit
The electronic circuit regulates the direct current voltage from
the batteries to the image intensifier assemblies, as required. It
also monitors the output voltage of the batteries and turns on a
low-battery indicator when the battery's life is approximately 30
minutes (2.1 Vdc).
POWER
POWER PACK
POWER SWITCH
CABLE
MOUN T
ASSEMBLY
BINOCULAR ASSEMBLY
1.5V x 2
1.5V x 2
ELECTRONIC CIRCUIT
"LOW-BATTERY"
RED
LED
IMAGE INTENS IFIERS
Figure 1-7. NVS 6 electrical diagram
1.6.4 Image intensifier's power supply function
The power supply inside the image intensifier assembly (refer to
Fig.1-6) converts the 3.0 volts from the power pack to the
applicable voltages, which provide the optimal conditions for
operating the image intensifier. The power supply also provides
automatic brightness control (ABC) and bright source protection
(BSP) under high light conditions.
14
The ABC automatically reduces the voltages to the micro
channel plate (MCP) to keep the image intensifier's brightness
within a set limit. The effect of this function may be seen when
rapidly changing from low-light to high-light conditions, the
image gets brighter and then after a short delay, dims slightly to a
constant level.
The BSP function reduces the voltage to the photocathode when
the goggles are exposed to bright light sources.
The BSP feature protects the image intensifier from damage and
enhances its life; however, it also has the effect to lowering
resolution. Therefore, under bright conditions, when you would
not, formally, use the goggles, the image produced is not sharp.
1.6.5 Low-battery indicator
Electrical power for the low-battery indicator is drawn from
either compartment, whichever has the high voltage. When
activated, the low-battery indicator light blinks ON and OFF.
15
2. OPERATING INSTRUCTIONS
NOTE
The NVS 6 is a precision electro-optical instrument, so handle it
carefully. If the equipment fails to operate, refer to the
troubleshooting procedures in Chapter 3.
2.1 OPERATOR CONTROLS & ADJUSTMENTS
NVS 6 designed to adjust for differences in head shape and
corrects for most differences in eyesight. Fig.2-1 and Table 2.1
describe the controls and indicators.
Figure 2-1. Operator controls and adjustments
16
Table 2-1. Operator controls and adjustments
ITEM FUNCTION
Power switch ON (either of two) - goggles is on, power drawn
Objectives focus rings Focuses objective lenses. Adjust for sharpest view.
Eyepieces focus rings Focuses the eyepieces lenses for each eye, without
Eye-span
adjustment
knobs
from that battery compartment to which switch
lever points.
OFF - goggles is off
the need for eyeglasses. Adjust for sharpest image
of intensifier screen.
Adjust proper distance between eyes so each eye
can observe the entire field at the same time. The
NVS 6 has independent eye-span adjusters, the left
knob moves the left monocular and the right knob
moves the right monocular.
Fore-and-aft
adjustment
knob
Vertical
adjustment
knob
Tilt lever Allows the goggles to be tilted up or down. Move
Lock-release
button
Low-battery
indicator
Adjusts the distance between goggles and operator's
eyes to obtain the optimal field of view.
Adjust the goggles as close as possible to your eyes
to maximize the filed of view, yet maintain your
peripheral view and "look under" capability.
Moves the goggles up or down in a vertical
direction. Turn the knob to center the eyepiece in
front of the eyes.
the lever to obtain the optimum line-of-sight
viewing.
Press the lock-release button to rotate the goggles
up or down.
When blinks, indicates a low-battery condition with
less than 30 minutes of battery life remaining.
17
2.2 OPERATIONAL CHECKOUT PROCEDURES
2.2.1 General
Prior to field operation of the goggles, perform the operational
checkout procedures as per tables 2-2 to 2-4.
2.2.2 Warnings and cautions
Always observe the WARNING and CAUTION appearing in the
tables. Warning and caution appear before applicable procedures.
You must observe the warnings and cautions to prevent serious
injury to yourself and others, or to prevent your equipment from
being damaged.
2.2.3 Explanation of table entries
a) Step. Steps numbers are included to assist you with performing
the checks.
b) Item.
c) Procedure.
d) NO-GO criteria.
e) Other table entries.
This column provides the item to be checked and its
location.
This column gives the procedure you must perform
to check or service the item, to know if the equipment is ready
or available for its intended mission or for operation.
Information in this column tells you what
faults will keep your equipment from being capable of
performing its primary mission. If you make checks that show
faults listed in this column, do not operate the equipment.
Follow standard procedures for maintaining the equipment or
reporting equipment failure.
Be sure to observe all special information
and notes that appear in your table.
18
Table 2-2 Before operation check.
Step Item Procedure NO-GO criteria
1 Power pack Inspect the power pack for
2 Battery
compartment
3 Power cable Inspect the cable for damage,
4 Power switch Check the switch for distinct
6 Power cable Inspect to make sure cable is
7 Binocular
ASSY
8 Lenses Inspect objective lenses and
damage or missing components.
Check for corrosion, damaged
contact, damaged battery
cartridge, cover damaged
or broken.
connector for
bent pins, and quick release for
proper function, protective
shield frayed or broken.
switching in each position.
secure, free of visible damage,
and female connector is free of
debris.
Inspect contacts (Fig.2-1-1for
dirt, corrosion, or wear. If dirty,
clean with pencil eraser.
eyepieces for cleanliness,
scratches, chips or cracks. If
necessary clean and dry lenses
using clean water and lens
paper
Power pack
cracked.
Contacts
corroded or
damaged,
cartridge
damaged, cover
broken.
Coble damaged
connector
inoperable.
Switch
inoperative
Cable connector
is damaged
Contacts are
worn, loose or
missing.
Chipped, cracked
or if scratches
hinder vision
with NVS 6
turned on.
19
Goggles and mount contacts
Table 2-2 Before operation check (cont'd).
Step Item Procedure NO-GO criteria
9 Eyepiece
assembly
Check eyepiece to make sure: the
whole assembly is not loose; that
there is a free movement through full
range of travel. Normally, the +2
mark on the eyepiece focus ring can
turn counter clockwise past the
reference dot up to the second hole
in the indicator plate and the -6 mark
clockwise past the reference dot. The
-6 mark can turn clockwise well past
the reference dot. As long as the
eyepiece focus ring stops at each
extreme of travel this situation is
OK. If the eyepiece focus ring
continues to turn and the whole lens
turns with it, the eyepiece is loose.
The reference dot on the indicator
plate may be at any point around the
eyepiece.
Eyepiece
assembly
Loose, travel
binds.
20
Step Item Procedure NO-GO criteria
9 Eyepiece
assembly
(cont'd)
10 Objective
lens
assembly
11 Adjustment
shelf
12 Monocular
housing
Check objective lens to make
sure the Whole assembly is not
loose, that there is free
movement through full range of
travel (1/3 turn).
Check for cracks, broken electrical
Circuit and that spring-loaded ball
bearing are clean and operate
properly. Check full travel of eyespan adjustment as follows. Hold
goggles at eye level, turn eye-span
knob(s) to move monoculars to
inside and outside extremes. Watch
to make sure the monoculars move
evenly. A small amount of wobble is
acceptable. If you think the wobble
is excessive, turn the NVS 6 to the
maintainer.
Inspect exterior of the monocular
housing for damages.
Objective lens
Assembly
loose, travel
binds.
Cracks, broken
circuit or ballbearing
inoperable.
Monoculars
wobble
excessively or
bind
Cracks, damages
21
Table 2-2 Before operation check (cont'd).
Step Item Procedure NO-GO criteria
13 System
(cont'd)
Press the lock release button (see
Fig.2-2) and rotate the goggles to the
up and down positions. Make sure it
engages properly.
Check all adjustments: vertical, foreand–aft and tilt for proper operation.
Binocular will
not stay locked
in up or down
position. Lock–
release button is
missing.
Movement binds
or does not
adjusts.
Table 2-3 Operational checks.
14 System
15 Low
battery
indication
CAUTION
Operate the NVS 6 only
under dark conditions.
Connect the power pack connector to
the mount connector. Install battery
cartridges filled with appropriate
batteries in both battery
compartments.
Place power switch in either ON
position. Look for green glow in
both eyepieces. Check the other ON
position.
Place power switch in either ON
position and remove batteries (or just
pull the cartridge part away to break
contact) for that side, thereby the
low-battery indicator shall blink.
Green glow
absent in one or
both eyepieces in
either switch
position.
Indicator will not
blink.
22
Table 2-4 Checkout finishing.
Step Item Procedure NO-GO criteria
16 System a. Disconnect the goggles from the
mount by reverse sequence (see step
13), cover the eyepieces and
objective lenses by appropriate
covers and fit the
goggles into the carrying case.
b. Disconnect power pack connector
from mount connector, remove two
battery cartridges and fit cartridges
(incl. batteries) into the carrying
case. Stow power pack into carrying
case, so the cable connector faces
down.
2.3 ASSEMBLY & PREPARATION FOR USE
CAUTION
The NVS 6 is a precision optical instrument and must be handled
carefully at all times, to prevent damage.
CAUTION
Be sure - the power pack is switched off before
installing the batteries.
23
2.3.1 Batteries and power pack installation.
WARNING
If using lithium batteries, inspect the batteries for damage or
defects before using them. If the batteries are damaged or show
signs of leakage, return them to the local supply point.
Fig 2-2 Battery installation
the batteries mounted in a battery cartridge are inserted into the
battery pack as shown in Fig.2-2.
The battery cartridge will accept two, AA size, 1.5V batteries.
24
Batteries installation/replacement procedure shall be performed
as follows:
A. Push the a. battery pack covers up (open).
B. Remove the cartridge containing the two 1.5V AA batteries.
C. Check to make sure the interior of each battery compartment
is clean.
D. The required polarity for the battery is illustrated on the
inside of the cartridge module. Insert the replacement battery
into each battery cartridge module (Fig.2-3).
E. Insert the battery cartridge into the battery pack and close
the battery pack covers.
Fig. 2-3. Battery cartridge
NOTE
Make sure to use fresh (no time) batteries before beginning
a mission. Some batteries that have been used, and still
have many hours of life remaining, can be used depending
on unit procedures.
25
2.3.2 Low Battery indicator check.
At the base of the NVS 6 mount is a red light-emitting diode
(LED) that comes on or blinks at a steady rate when battery
voltage is low (see Fig.2-4). To make sure this indicator works,
perform the following check. With good batteries installed in
both compartments of the power pack, open one of the battery
compartment and pull the cartridge part way out, to make sure
you break the electrical contact.
NOTE
The low-battery indicator must be checked prior to attaching
goggles to the mount or in the flipped-up position
Turn the power switch ON to the side where the battery
compartment is open. The Low-battery indicator should come on
or blink.
WARNING
If eyeglasses are worn, the upper rims of the eyeglasses
can obscure the low-battery indicator.
Fig. 2-4. Low-Battery indicator.
26
b
Spherical juts
Spring-loaded
Firstly
Figure 2-5 Goggles connection to the mount
alls
GOGGLES
Secondly
27
Return the switch to the OFF (middle) position, return the
cartridge to its initial position and close the battery compartment.
Repeat the same procedure for the second ON position of the
power switch.
If the low-battery indicator does not respond as required replace
the batteries, which are in closed compartment, with fresh ones
and try again. Make sure the power cable is properly connected.
If the indicator still does not function, return the NVS 6 with its
power pack and mount to the maintainer.
2.3.3 Attaching the Binocular to the Mount
A. Make sure the power switch is turned off. Hold the goggles
with both hands with the eyepieces facing you, and slide the
spring-loaded ball bearings into the channels of the mount
until they lock in place.
B. Press the lock release button (see Figure 2-6) and rotate the
goggles to the up and lock position.
C. Press the lock-release button and ensure it locks properly.
28
2.4 OPERATING PROCEDURES
2.4.1 Setting the controls and adjustments
The NVS 6 is designed to adjust for differences in head shape
and correct for most differences in eyesight.
NOTE
Although the NVS 6 is designed to be used without eyeglasses, if
eyeglasses are needed to read the aircraft instruments and the
eyeglass lenses will fit within the eye relief distance of the
goggless’ eyepiece, eyeglasses can and should be worn.
WARNING
If eyeglasses are worn, the eyeglasses upper rim can obscure the
low-battery indicator.
29
NOTE
Before using the NVS 6 for flight operations, be sure to check
out the system's operation. Perform the checkout under darkened
conditions.
Use the following operating procedures for check out. If a failure
occurs, refer to the troubleshooting procedures in Chapter 3,
Section II. If the problem persists, the system must be returned to
the maintainer.
Make sure the batteries are installed as described in paragraph
2.3.1. Remove the lens caps. Turn the power switch initially to
one of the ON position. A green glow will appear in each
eyepiece (after a slight delay).
NOTE
If a red light appears at the base of the NVS 6 mount, the
batteries in that compartment are low and need to be replaced.
Switch to the other battery compartment and make sure those
batteries are good.
Turn the vertical adjustment knob (see Fig.2-7) to center the
eyepieces in from of your eyes. Minor readjustment may be
needed after adjusting the tilt lever.
30
NOTE
If the NVS 6 eyepieces are not properly aligned with the eyes,
optimal resolution will not be achieved. Proper alignment of the
eyepieces is achieved when the distance between the monocular
matches the distance between your pupils and the line of sight is
the same as the vertical angle of the goggles. When all the
eyepiece adjustments (eye-span, vertical and tilt) are properly set,
the edges of the images in both monoculars will be clear.
GOOGLES
31
CAUTION
Do not attempt to adjust the tilt angle of the goggles by pushing
or pulling the monocular up and down as this will damage the
adjustment mechanism. Use only the tilt lever to make tilt angle
adjustments.
Move the tilt lever (see Figure 2-8) up or down to obtain the
optimum line-of-sight view. If the upper or lower edges of the
image areas are blurred, adjust both the vertical adjustment knob
and the tilt lever until the blurred edge is removed and an optimal
line of sight is achieved.
Turn the fore-and-aft adjustment knob (see Figure 2-9) to move
the monocular away from the eyes as far as possible without
losing the field of view. This makes edge clarity easier to judge.
You may use the fore-and-aft scale to preset this adjustment.
32
CAUTION
Do not attempt to adjust the eye-span distance by pulling the
monocular away from each other or pushing them together.
Using force on the monocular to make this adjustment will
damage the adjusting mechanism inside the adjustment shelf.
Use only the eye-span knob(s) to adjust the eye-span distance.
If your eye-span distance has measured prior to mounting the
goggles, turn the eye-span knobs(s) (See Figure 2-10) to set this
value on the scale.
If not move the goggles closer together or further apart to adjust
the eye-span distance for the proper spacing between your eyes.
When properly adjusted, the edges of the images in both
monocular will be clear and the resultant goggles view will
appear as a single circle or as two circles, overlapped and slightly
displaced laterally.
33
Figure 2-10 eye-spam knobs
Now, turn the fore-and –aft adjustment knob to move the
monocular closer to the eyes as desired for individual preference
without your eyelashes touching the eyepiece lenses. A 25mm
eye relief distance provides the optimal field of view for the
larger 25mm eyepieces.
34
3. MAINTENANCE INSTRUCTIONS
3.1 Lubrication Instructions
No Lubrication is required.
3.1 Troubleshooting procedures
Table 3-1 lists common malfunctions that you may find with
your equipment. Perform the tests, inspections and corrective
actions in the order they appear in the table.
This table cannot list all the malfunctions that may occur, all the
tests and inspections should find the fault or all the corrective
actions that need to be taken in order to rectify the fault. If the
equipment malfunction is not listed or in the event that the
actions listed do not rectify the fault – notify your maintainer.
Table 3-1 Troubleshooting procedures
Problem Probable cause Corrective actions
Goggles will
not come on
Goggles will
not come on
Batteries are
defective.
Batteries missing or
improperly Installed
Electrical contracts are
dirty or corroded.
35
Replace batteries
Insert batteries or
install correctly
Use a dry cloth, or pencil
eraser and clean all electrical
contacts.
Intermittent
operation
Poor image
quality
Objective lens
cannot be focused
Eye-span
adjustment
cannot be made
Goggles will
not lock in
mount
Visor will not
operate in mount
Power cable connectors
are not properly
engaged
Broken power cord,
mount or power pack
Defective mount
or goggles
Objective lenses
or eyepiece lenses not
focused correctly or
lenses are fogged or
dirty
Focus mechanism Hand over NVS 6 for
Defective eye-span
mechanism
Mounting hardware is
dirty or broken
Visor and mount
improperly installed
Visor link defective
36
Reconnect.
If power cord is damaged,
return
NVS 6 and/or mount to the
maintainer
Hand over NVS 6 and mount
for maintenance
Adjust the focus of the lenses
or clean them. If the image is
still not clear, or the lenses are
fogged internally, hand over
NVS 6 for maintenance.
maintenance.
Hand over NVS 6 for
maintenance.
Clean the mounting hardware.
If problem persists, the
mechanism is damaged. Hand
over NVS 6 and mount for
maintenance
Hand over helmet for
maintenance.
Hand over helmet for
maintenance.
Low battery
Indicator will
not illuminate
during check
Low-battery
indicator will
not illuminate
during check
Operator
experiences
eyestrain,
headache, or
nausea while
using goggles
Batteries defective or
missing
Batteries improperly
installed
AA cartridge not pulled
part way out.
Poor power cable
connection.
Defective power pack.
Defective mount.
Incorrect sight picture
of focus
Collimation off, poor
image, adjustment shelf
defective or monocular
housing defective.
Install new batteries
Install correctly
Pull partly out to break
electrical
contact.
Check connector.
Hand over NVS 6 for
maintenance.
Hand over NVS 6 for
maintenance.
Correct Sight Picture focus
Hand over NVS 6 to
maintenance
personnel for collimation
check,
image check, and adjustment
shelf as well as monocular
housing check
37
3.3 Maintenance procedures
Operator maintenance of the NVS 6 is limited to cleaning the
system as follows:
CAUTION
The NVS 6 is a precision electro-optical instrument and must be
handled with care.
Do not scratch or touch the external lens surfaces.
Do not use abrasive materials to clean the gold-plated electrical
contacts.
Gently brush off any dirt using only a soft, lint-free cloth.
Moisten the cloth with fresh water and gently wipe the external
surfaces (except lenses) so they are free of foreign material.
With another dry, clean, soft lint-free cloth, dry any wet surfaces
(except lenses).
Using lens paper, carefully remove all loose dirt from the lenses.
Dampen a folded lens paper with clean water and lightly and
slowly wipe the lenses. After one straight stoke, discard the lens
paper. Repeat this step until the glass surfaces are clean.
38
4. 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
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.
with the same or
39
5. 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: newconsales@newcon-optik.com
Web: www.newcon-optik.com
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
40
6. ACCEPTANCE CERTIFICATE
IIT serial number (left channel): _______________________
IIT serial number (right channel): ______________________
Minimum
Resolution, lp/mm 57
Measured
(left)
Measured
(right)
Photocathode
sensitivity, integral,
500
A/lm
Light amplification 35,000
Date of production:__________________________________
Quality Inspector: ___________________________________
NIGHT VISION DEVICE
NVS 6-2XT NVS 6-3XT
41
Unit serial number: _________________________________
The unit complies with all technical specifications and has
passed the inspection.
Date of production: _________________________________
Quality Inspector: __________________________________
Quality Assurance Seal
42
R1 – 5.11
NEWCON OPTIK
Printed in Canada
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