Newcon Optik NVS 6 User manual

NVS 6
PILOT NIGHT VISION
GOGGLES
MAINTENANCE AND OPERATION
MANUAL
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NVS 6
MANUAL
RECORD OF REVISIONS
Pages 1/2
IMPORTANT INFORMATION
Read prior to activation
You have just purchased a complicated electronic device. To operate it
properly, please read this manual carefully. Here are some common
precautions that must be noted.
• NEVER disassemble the unit. This device contains high voltage, which may
be hazardous to your health!
• NEVER expose the opened objective lens of an active unit in daylight. At
daytime objective lens must be covered by caps. There is a tiny hole in the
cap to provide enough light for daytime testing. It is allowed to turn on the
unit at daytime, but caps must cover the lenses.
• NEVER aim active unit at intense light sources
(i.e. lights, headlamp, campfires, the moon, etc.)
• NEVER reverse the polarity of a battery
●ALWAYS remove batteries when not in use for a long period
• ALWAYS keep the objective lenses covered when not in use
• ALWAYS store in a warm dry place when not in use

NVS 6
MANUAL
Page 2
RECORD OF REVISIONS
Rev. Section, Page Authorizing Transmittal letter
No. Sub-Section,
Subject Revi-
sed Added Dele- ted
Document
No.
Reference No.
and date
Signed
by
Date

NVS 6
MANUAL
LIST OF EFFECTIVE PAGES
Pages 1/2
LIST OF EFFECTIVE PAGES
Section,
Sub-Section,
Subject Page Date
Title Page ––
Record of
Revisions
1/2
List of Effective
Pages
1/2
Table of Contents 1/2
General 1
2
Main Data 3
4
Standard Set 5
6
Safety Precautions 7
Design of Unit and 8
Its Components 9
10
11
12
13
14
15
16
17
18
Preparation for 19
Operation 20
21
22
Section,
Sub-Section,
Subject Page Date
23
24
25
26
27
28
29
30
31
32
33
34
35
Operation Proce- 36
dure 37
Operational 38
Status Check 39
Trouble Shooting 40
41
42
43
Maintenance 44
Practices 45
46
47
48
Storage and 49
Shipment 50

NVS 6
MANUAL
CONTENTS
Pages 1/2
TABLE OF CONTENTS
Page
1 General........................................................................................................ 1
2 Main Data .................................................................................................... 3
3 Standard Set................................................................................................ 5
4 Safety Precautions....................................................................................... 7
5 Design of Unit and Its Components............................................................. 8
6 Preparation for Operation .......................................................................... 19
6.1 Preparation of Helmet for Mounting Night-Vision Goggles ...................... 19
6.2 Individual Adjustment and Fitting............................................................. 22
6.3 Arrangement of Night-Vision Goggles on Helicopter............................... 32
7 Operation Procedure ................................................................................. 36
8 Operational Status Check.......................................................................... 38
9 Trouble Shooting ....................................................................................... 40
10 Maintenance Practices ............................................................................ 44
11 Storage and Shipment............................................................................. 49
APPENDIX A ................................................................................................. 51
APPENDIX B ................................................................................................. 52

NVS 6
MANUAL
Page 1
1 General
1.1 The NVS 6, helicopter night-vision goggles, have been
designed for use by the helicopter crewmembers during execution of
flights at night.
Note – The helicopter cockpit should be tailored for the use of the
night-vision goggles. Accounting for the spectral content of the light
equipment radiation, color of the cockpit interior surfaces, and the like.
1.2 The NVS 6 provides napping off the earth while piloting the
helicopter at low altitudes, at takeoff, hovering and landing, including
landing on unprepared and non-illuminated landing sites.
1.3 When using the NVS 6, the pilot can take the readings of the
instruments by looking at the instrument panel in the downward direction
or sideways past the eyepieces.
1.4 The NVS 6 operates within the ambient temperature range of
minus 40 to +40oC.
1.5 The power supply to the NVS 6 is powered by the helicopter
electrical system of 27V, via the voltage converter or from the
independent power source (IPS). The IPS is built-in to the goggles and
consisting of two batteries of type size AA R6 1.5V or from rechargeable
batteries of the same type.
Note – The IPS (independent power source) is used when the
aircraft electrical power is lost or the helicopter power supply has failed.
1.6 The NVS 6 shall be used under the following conditions:
– When the natural night illumination intensity is within 5·10-3 to 1 lx
and the meteorological visibility is 1 to 10 km
– At a flight altitude of 20 to 200 m;
– At a flight speed of up to 120 km/h.

NVS 6
MANUAL
Page 2
1.7 The trouble-free operation of the NVS 6, within the assigned
service life, is ensured through its correct use, careful handling and well-
timed maintenance.
1.8 When operating the unit or placing it in storage, keep it clean
and avoid touching the external optical surfaces of the lenses and
eyepieces with fingers. Protect the unit against impact or dropping which
may cause damage and defects to the unit and render it inoperable.
1.9 Before using the NVS 6, carefully read this Manual.
1.10 In the course of the service of the unit, enter the information
pertaining to its operational status, maintenance, storage and repair in the
Log Book.

NVS 6
MANUAL
Page 3
2 MAIN DATA
2.1 Specifications of the NVS 6 are presented in Table 1.
Table 1
Specification Characteristic
1 Field of view (FOV), minimum 40 deg
2 Magnifying power 1 X
3 Resolving power limit of the image intensifier
tube, as measured in the center of FOV, minimum
50 lines per mm
4 Dioptric setting range of eyepieces, minimum -6/+2 D
5 Interpupilary distance range 52 to 72.7 mm
6 Lens focusing distance range 0.25 m to infinity
7 Power supply:
– From helicopter DC electrical system via a
voltage converter
24.0 to 29.4 V
– From two batteries of type size AA R6 1.5 V
or rechargeable batteries
2.2 to 3.2 V
8 Current consumed with the unit powered from
helicopter electrical system, maximum
100 mA
9 Power consumed with the unit powered from
helicopter electrical system, maximum
3 W
10 Continuous operation time of the unit powered
from the built-in independent power source without
changing the batteries (within the entire operating
temperature range), minimum
3 h

NVS 6
MANUAL
Page 4
Table 1, cont'd
Specification Characteristic
11 Continuous operation time followed by an
interval of not less than 30 min, minimum
3 h
12 Unit deployment time (getting the unit ready
for use), maximum
5 min
13 Unit stowing time (packing the unit in the
case), maximum
5 min
14 Mass, maximum:
– Night-vision goggles (without mount) 0.59 kg
– Voltage converter with cable 0.3 kg
15 Night-vision goggles overall dimensions,
maximum
108x151.5x122 mm

NVS 6
MANUAL
Page 5
3 STANDARD SET
3.1 The standard set of the NVS 6 shall be consistent with Table 2
and Fig. 3.1.
Table 2
Designation Nomenclature Qty Remarks
Assemblies
201211.010 Night-vision goggles 1
433739.003 Voltage converter 1
Set of Spare Parts
279376.002 Dehydrator cartridge 1 Optional
Set of Tools and Accessories
Watchmaker’s
screwdriver MT-992, size
1.5
1 Optional
754421.001 Test pattern 1 Optional
Batteries of type size
AA R6 1.5 V
4 Optional
304134.001 Mount 1
745159.003 Casing 1
745159.001 Clamp 1
305259.001 Counterweight 1
741112.013 Cloth 3 Optional
Packaging
325371.009 Soft Padded Case 1