EOTech M914 User Manual
MNVD-TM-ITI
OPERATOR MANUAL
FOR THE
Monocular Night Vision Device (MNVD)
Rev. 1 11 October 2011
SAFETY SUMMARY
GENERAL
This manual contains operating instructions and
maintenance procedures which may cause injury or death to
personnel, or damage to equipment if not properly followed.
Prior to performing any task, the WARNINGs, CAUTIONs
and NOTEs included in that task shall be reviewed and
understood.
DEFINITIONS
Highlights an essential operating or maintenance
procedure, practice, condition or statement, which,
if not strictly observed, could result in i njury to, or
death of, personnel or long term health hazards.
Highlights an essential operating or maintenance
procedure, practice, condition or statement, which,
if not strictly observed, could res ult in damage to,
or destruction of, equipment or loss of mission
effectiveness.
Highlights an essential operating or maintenance
procedure, condition or statement.
WARNING
CAUTION
NOTE
i
SAFETY PRECAUTIONS
The following general safety precautions supplement the
specific WARNINGs, CAUTIONs and NOTEs that appear
elsewhere in this manual.
WARNING
The Infrared (IR) LED Illuminator is detectable by
an enemy using night vision devices. Detecti on is
easier in smoky, foggy, or rainy conditions. To
reduce the risk of detection by an enemy using
night vision devices, avoid prolonged activation of
the IR LED Illuminator.
WARNING
Emission of stray light from the eyepiece (even
with eyecup installed) may be detectable by the
enemy.
WARNING
Do not touch, ingest, or inhale particles or
fragments of a broken objective lens. Lens
contains material that may cause irritation t o eyes,
skin, upper and lower respiratory tracts, or
gastrointestinal tract. If contacted, flush eyes or
skin with large amounts of water. If ingested, DO
NOT induce vomiting. Rinse mouth with water
and give victim 2-4 cupfuls of milk or water.
Fragments of lens may be sharp enough to cut
personnel if touched.
ii
WARNING
Remove the MNVD from the weapon before
inspecting, cleaning, or performing other
maintenance functions.
WARNING
• Do not short circuit, puncture, incinerate, or
disassemble battery.
• Do not attempt to recharge battery.
• Prior to us e, inspect battery f or cracks, dents,
leakage, or bulging. Never install a defective
battery in the MNVD.
WARNING
Lithium batteries can explode or cause burns if
disassembled, shorted, recharged, exposed to
water, fire, or high temperatures (above 100°C or
212°F). Do not place loose batteries in a pocket
or other container containing metal objects. Do
not store batteries with hazardous or combustible
materials. Store in a cool, dry, ventilated area.
WARNING
Use of off-brand batteries poses a risk of fire or
explosion. Ensure that only a 1.5V AA battery
produced by a well-known batt ery manufacturer is
installed in the MNVD. These batteries are
specifically designed for use in high perform ance,
high-drain devices, and contain built-in fault and
heat protection features.
iii
CAUTION
Do not ship or store the MNVD with the battery
installed.
CAUTION
Pointing the MNVD at the sun without the lens
cover installed may damage internal imaging
components.
CAUTION
The coating on the demist shiel d may be damaged
if cleaned while wet. Clean the demist s hield only
when dry and using dry lens tissue.
CAUTION
Use of acetone or gun cleaning agents containing
perchloroethylene or methylene chloride may
permanently damage the MNVD.
iv
TABLE OF CONTENTS
SAFETY SUMMARY ....................................................................... i
TABLE OF CONTENTS ................................................................. v
LIST OF FIGURES ....................................................................... vii
LIST OF TABLES ......................................................................... vii
CHAPTER 1 ...................................................................................... 1-1
INTRODUCTION ......................................................................... 1-1
SECTION I .............................................................................. 1-1
GENERAL INFORMATION ............................................... 1-1
1.1 SCOPE .................................................................. 1-1
1.2 MODEL NUMBER AND EQUIPMENT NAME ...... 1-2
1.3 MANUFACTURER ................................................ 1-2
1.4 PURPOSE OF EQUIPMENT ................................ 1-2
1.5 ABBREVIATIONS AND ACRONYMS .................. 1-2
SECTION II ............................................................................. 1-3
EQUIPMENT DESCRIPTION ........................................... 1-3
1.6 SYSTEM DESCRIPTION ...................................... 1-3
1.7 TECHNICAL SPECIFICATIONS .......................... 1-4
1.8 MAJOR COMPONENTS ....................................... 1-5
CHAPTER 2 ...................................................................................... 2-1
1.9 FEATURES AND CONTROLS ............................. 1-8
OPERATING INSTRUCTIONS ................................................... 2-1
SECTION I .............................................................................. 2-1
PREPARATION FOR USE ............................................... 2-1
2.1 PREPARATION FOR USE ................................... 2-1
2.2 BATTERY HANDLING .......................................... 2-2
2.3 HEADMOUNT ASSEMBLY .................................. 2-3
2.4 WEAPON MOUNTING INSTRUCTIONS ........... 2-11
2.5 LENS ACCESSORIES ........................................ 2-14
SECTION II ........................................................................... 2-16
OPERATING INSTRUCTIONS ....................................... 2-16
2.6 MODES OF OPERATION ................................... 2-16
2.7 IR LED ILLUMINATOR ....................................... 2-17
2.8 GAIN (CONTRAST) ............................................ 2-18
2.9 FOCUS ................................................................ 2-18
2.10 DIOPTER ADJUSTMENT ................................. 2-19
2.11 STARTUP PROCEDURES ............................... 2-19
v
TABLE OF CONTENTS – Continued
CHAPTER 3 ...................................................................................... 3-1
MAINTENANCE .......................................................................... 3-1
SECTION I .............................................................................. 3-1
OPERATOR MAINTENANCE ........................................... 3-1
3.1 TROUBLESHOOTING PROCEDURES ............... 3-1
3.2 INSPECTION / CLEANING................................... 3-3
3.3 CORRECTIVE MAINTENANCE PROCEDURES 3-5
SECTION II ............................................................................. 3-7
SERVICE / PACKING AND UNPACKING ........................ 3-7
3.4 SERVICE / REPAIR .............................................. 3-7
3.5 WARRANTY INFORMATION ............................... 3-8
APPENDIX A ................................................................................... A-1
APPENDIX B ................................................................................... B-1
3.6 NON-WAR RANTY INFOR MAT ION ...................... 3-8
REPAIR PARTS LIST ................................................................ A-1
ACCESSORIES .......................................................................... B-1
vi
LIST OF FIGURES
Figure 1-1 Headmounted MNVD ..................................................... 1-1
Figure 1-2 Major Components
Figure 1-3 Features and Controls
Figure 2-1 Battery Installation
Figure 2-2 Low Battery Indicator
Figure 2-3 Headmount Assembly
Figure 2-4 Headmount Adapter Installation
Figure 2-5 Mounting to Headmount Assembly
Figure 2-6 Fore / Aft Release Button
Figure 2-7 Adjustment Knob
Figure 2-8 Weapon Mount Assembly
Figure 2-9 Weapon Mount Assembly Installation
Figure 2-10 Mounting the MNVD
Figure 2-11 MNVD Eyecups
Figure 2-12 IR LED Illuminator Indicator
Figure 3-1 Neck Cord Replacement
Figure A-1 End Item Components
Figure A-2 MNVD Assembly
LIST OF TABLES
Table 1-1 Technical Specifications .................................................. 1-4
Table 1-2 List of Major Components
Table 1-3 List of Features and Controls
Table 2-1 Field of View and Positioning Adjustments
Table 2-2 Mode Switch Operation
Table 3-1 Troubleshooting Procedures
Table A-1 List of End Item Components
Table A-2 List of Repair Parts
Table B-1 List of Accessories
......................................................... 1-5
.................................................... 1-8
.......................................................... 2-2
...................................................... 2-3
.................................................... 2-4
..................................... 2-6
................................ 2-7
............................................... 2-8
............................................................ 2-9
............................................ 2-11
.......................... 2-12
................................................... 2-13
.......................................................... 2-15
....................................... 2-18
................................................ 3-6
.................................................. A-1
........................................................... A-3
............................................... 1-6
.......................................... 1-9
................... 2-10
................................................. 2-17
........................................... 3-1
......................................... A-2
......................................................... A-3
......................................................... B-1
vii
CHAPTER 1
INTRODUCTION
SECTION I
GENERAL INFORMATION
Figure 1-1 Headmounted MNVD
1.1 SCOPE
This manual is intended for use by operators of the
Monocular Night Vision Device (MNVD). It provides a
system description, operational procedures, and
maintenance responsibilities. Complete familiarization with
this manual prior to using the equipment will ensure safe
operation and maxi mum effectiv eness of the MNVD.
1-1
1.2 MODEL NUMBER AND EQUIPMENT NAME
cm
Centimeter
g
Gram
I2
Image Intensifier
ITAR
International Traffic in Arms Regulations
LED
Light Emitting Diode
mm
Millimeter
MNVD
Monocular Night Vision Device
RMA
Return Material Authorization
TBD
To Be Determined
V
Volt
245620, Monocular Night Vision Device (MNVD)
1.3 MANUFACTURER
L-3 Communications Corporation
Warrior Systems Division
Insight Operations
9 Akira Way
Londonderry, NH 03053 USA
1.4 PURPOSE OF EQUIPMENT
The MNVD allows for observation under adverse conditions
including light rain, smoke, light snow, and low light to total
darkness.
1.5 ABBREVIATIONS AND ACRONYMS
Abbreviations and acronyms used in this manual are listed
as follows:
IR Infrared
NSN National Stock Number
1-2
EQUIPMENT DESCRIPTION
SECTION II
1.6 SYSTEM DESCRIPTION
The MNVD is a portable, battery operated night vision device
with an integrated IR light source. It can be used as a
handheld device or may be mounted to a weapon, helmet, or
headmount assembly.
When used in the normal operating mode (ON), the MNVD
amplifies available ambient light to allow for observation
under adverse conditions including light rain, smoke, light
snow, and low light conditions. When used in the IR mode,
the MNVD generates its own light with an integrated IR LED
Illuminator to allow for observation, map reading, etc. even in
complete darkness.
The MNVD is a ruggedized system designed for operation in
battlefield environments.
1-3
1.7 TECHNICAL SPECIFICATIONS
WEIGHT AND DIMENSIONS
Weight
< 14.1 ounces (400 g)
(with standard eyecup)
Width
2.8 inches (7.1 cm)
Height
2.4 inches (6.1 cm)
POWER AND PERFORMANCE
Battery
One 1.5V AA lithium battery
Battery Life 1
> 15 hours
Magnification
1x
Field of View
40° (± 2°)
Objective Focus
9.8 inches (25cm) to infinity
Diopter Adjustment
+2 to -6
Immersion
1 meter for 30 minutes
Operating Temperature
-60°F (-51°C) to 120°F (49°C)
Storage Temperature
-60°F (-51°C) to 185°F (85°C)
Table 1-1 provides technical specifications for the MNVD.
Table 1-1 Technical Specifications
Length
1
Performance will vary depending on actual environmental and
6.5 inches (16.5 cm)
atmospheric conditions.
1-4
1.8 MAJOR COMPONENTS
1
2
8
10
15
14
The MNVD syst em includes the components shown in Figure
1-2. Table 1-2 provides a brief functional description of each
item. The “Key” column in Table 1-2 corresponds to the
label numbers in Figure 1-2.
3
13
11
12
5
9
7
6
4
Figure 1-2 Major Components
1-5
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