Instruction Manual EOTECH CNVD-T | Optics Trade

CQB-TM-ITI
OPERATOR MANUAL
FOR THE
Clip-On Night Vision Device - Thermal
(CNVD-T)
Rev. 1 15 November 2010

i
SAFETY SUMMARY
1. GENERAL SAFETY INSTRUCTIONS
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.
2. WARNINGS, CAUTIONS AND NOTES
Safety headings used in this manual and their respective
definitions are as follows:
WARNING..
Highlights an essential operating or maintenance
procedure, practice, condition or statement, which,
if not strictly observed, could result in injury to, or
death of, personnel or long term health hazards.
CAUTION..
procedure, practice, condition or statement, which,
if not strictly observed, could result in damage to,
or destruction of, equipment or loss of mission
effectiveness.
NOTE
procedure, condition or statement.

ii
3. SAFETY PRECAUTIONS
The following general safety precautions supplement the
specific WARNINGs, CAUTIONs and NOTEs that appear
elsewhere in this manual.
3.1 Batteries. The Clip-On Night Vision Device – Thermal
(CNVD-T) is powered by four lithium DL123A batteries. The
following safety precautions apply when handling lithium
batteries:
• Do not short circuit, puncture, incinerate, or
disassemble.
• Do not attempt to recharge.
• Prior to use, inspect all batteries for cracks, dents,
leakage, or bulging. Never install a defective battery
in the CNVD-T.
WARNING..
Do not use the CNVD-T with a mix of old and new
batteries, or batteries of different brands.
CAUTION..
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.

iii
WARNING..
Use of incorrect batteries poses a risk of fire or
explosion. Be aware that batteries do exist with
similar physical characteristics to the DL123A
battery, but with a different voltage and/or polarity
path. Ensure that only 3V lithium batteries with a
raised positive (+) terminal are installed in the
CNVD-T.
WARNING..
Use of off-brand batteries poses a risk of fire or
explosion. Ensure that only 3V lithium batteries
produced by well-known battery manufacturers
such as Duracell®, Rayovac®, or Panasonic® are
installed in the CNVD-T. These batteries are
specifically designed for use in high performance,
high-drain devices, and contain built-in fault and
heat protection features.
CAUTION..
Do not ship or store the CNVD-T with batteries
installed.
3.2 Weapons Safety. The CNVD-T is designed to be used
with destructive weapon systems. Improper operation or
misuse of the CNVD-T with these weapon systems could
lead to personal injury or death of either the operator or other
persons within weapons range. Safe firearms handling
procedures must be practiced at all times.

iv
WARNING..
Remove the CNVD-T from the weapon before
inspecting, cleaning, or performing other
maintenance functions.
3.3 Operation and Maintenance.
CAUTION..
Use of acetone or gun cleaning agents containing
perchloroethylene or methylene chloride may
permanently damage the CNVD-T system.
CAUTION..
Pointing the CNVD-T directly at the sun without
the lens cover installed (and closed) may
permanently damage the thermal assembly.

v
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......1-1
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 LIST OF MAJOR COMPONENTS........................1-5
CHAPTER 2......................................................................................2-1
OPERATING INSTRUCTIONS ...................................................2-1
SECTION I..............................................................................2-1
PREPARATION FOR USE AND INSTALLATION............2-1
2.1 PREPARATION FOR USE ...................................2-1
2.2 BATTERY HANDLING..........................................2-1
2.3 MOUNTING INSTRUCTIONS ..............................2-3
2.4 OBJECTIVE LENS AND EYEPIECE....................2-5
SECTION II.............................................................................2-7
OPERATING PROCEDURES...........................................2-7
2.5 CONTROLS AND ADJUSTMENTS......................2-7
2.6 POWER.................................................................2-8
2.7 BUTTON FUNCTIONS .........................................2-8
2.8 BRIGHTNESS ADJUSTMENT .............................2-9
2.9 GAIN (CONTRAST) ADJUSTMENT...................2-10
2.10 FOCUS ADJUSTMENT ....................................2-11
2.11 STARTUP PROCEDURES...............................2-12
2.12 MENU FUNCTIONS .........................................2-12
2.13 SHUTDOWN PROCEDURES ..........................2-20

vi
TABLE OF CONTENTS (cont'd)
2.14 EXTERNAL MONITOR.....................................2-20
SECTION III..........................................................................2-22
ZEROING PROCEDURES .............................................2-22
2.15 ZEROING ON A 25-METER RANGE...............2-22
CHAPTER 3......................................................................................3-1
MAINTENANCE AND SERVICING ............................................3-1
SECTION I..............................................................................3-1
MAINTENANCE AND TROUBLESHOOTING..................3-1
3.1 MAINTENANCE PROCEDURES .........................3-1
3.2 TROUBLESHOOTING PROCEDURES ...............3-2
3.3 CORRECTIVE MAINTENANCE PROCEDURES 3-3
SECTION II.............................................................................3-9
SERVICE / PACKING AND UNPACKING........................3-9
3.4 RETURN INSTRUCTIONS...................................3-9
3.5 WARRANTY INFORMATION .............................3-10
3.6 NON-WARRANTY INFORMATION....................3-10
APPENDIX A.................................................................................... A-1
REPAIR PARTS / ACCESSORIES ...........................................A-1
A.1 Scope................................................................... A-1

vii
LIST OF FIGURES
Figure 1-1 Clip-On Night Vision Device – Thermal (CNVD-T) ........1-1
Figure 1-2 CNVD-T Major Components ..........................................1-5
Figure 2-1 Battery Installation..........................................................2-2
Figure 2-2 Throw-Lever Mount ........................................................2-3
Figure 2-3 CNVD-T Mounted with ACOG®.....................................2-5
Figure 2-4 CNVD-T Controls and Adjustments ...............................2-7
Figure 2-5 Brightness Control..........................................................2-9
Figure 2-6 Contrast (Gain) Control ................................................2-10
Figure 2-7 Main Menu....................................................................2-12
Figure 2-8 Menu – ZOOM 1X / ZOOM 2X.....................................2-13
Figure 2-9 Menu – Polarity (POL)..................................................2-14
Figure 2-10 Menu – Calibration (CAL)...........................................2-15
Figure 2-11 Menu – Reticle Intensity (RETINT) ............................2-16
Figure 2-12 Reticle Intensity Control .............................................2-16
Figure 2-13 Menu – Reticle (RET) Control....................................2-17
Figure 2-14 Reticle Position Adjustment .......................................2-18
Figure 2-15 Menu – RS170 / VGA.................................................2-18
Figure 2-16 Menu - Exit .................................................................2-19
Figure 2-17 Video Cable................................................................2-20
Figure 3-1 Replacing Objective Lens Cover....................................3-5
Figure 3-2 Replacing battery Door Lanyard ....................................3-7
Figure 3-3 Replacing Video Jack Plug Assembly............................3-8
LIST OF TABLES
Table 1-1 Technical Specifications..................................................1-4
Table 1-2 CNVD-T Major Components ...........................................1-5
Table 2-1 Reticle Adjustments.......................................................2-22
Table A-1 Repair Parts / Accessories............................................. A-1

1-1
CHAPTER 1
INTRODUCTION
SECTION I
GENERAL INFORMATION
Figure 1-1 Clip-On Night Vision Device – Thermal
(CNVD-T)
1.1 SCOPE
This manual is intended for use by operators of the Clip-On
Night Vision Device - Thermal (CNVD-T). 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 maximum effectiveness of the CNVD-T.
1.2 MODEL NUMBER AND EQUIPMENT NAME
CQB-001-A7, Clip-On Night Vision Device – Thermal
(CNVD-T)

1-2
1.3 MANUFACTURER
L-3 Insight Technology Incorporated
9 Akira Way
Londonderry, NH 03053 USA
1.4 PURPOSE OF EQUIPMENT
The CNVD-T is a handheld or weapon-mounted thermal
imaging device that allows for observation, target
identification, and passive target acquisition during the day or
in adverse conditions such as light rain, light snow, dry
smoke, and low light to total darkness.
1.5. ABBREVIATIONS AND ACRONYMS
Abbreviations and acronyms used in this manual are spelled
out the first time they appear. For reference purposes, they
are also listed as follows:
ACOG® Advanced Combat Optical Gunsight
AZ Azimuth
BNC Bayonet Neill-Concelman
C Celsius
cm Centimeter
CNVD-T Clip-On Night Vision Device - Thermal
EL Elevation
F Fahrenheit
ITAR International Traffic in Arms Regulations
m Meter
NSN National Stock Number
RCO Rifle Combat Optic
RMA Return Material Authorization
TBD To Be Determined
V Volt
VGA Video Graphics Array

1-3
SECTION II
EQUIPMENT DESCRIPTION
1.6 SYSTEM DESCRIPTION
The CNVD-T is a battery operated, handheld or weapon-
mounted, thermal imaging device. It allows for observation,
target identification, and target acquisition during the day or
in adverse conditions such as light rain, light snow, dry
smoke, and low light to total darkness. The unit will not
allow the user to see through glass, water, or heavy rain /
snow.
The CNVD-T detects and displays available thermal
signatures to provide rapid cueing to the operator of potential
targets or danger. The sight is passive and does not emit
visible or infrared light (except from the eyepiece) that can
be detected by the enemy.
The CNVD-T can be mounted to weapons equipped with a
MIL-STD-1913 rail. It may also be used in conjunction with
other optical and red dot sights.
It is a ruggedized system designed for operation in battlefield
environments.

1-4
1.7 TECHNICAL SPECIFICATIONS
Table 1-1 Technical Specifications
WEIGHT AND DIMENSIONS
Weight
(with batteries)
< 22.4 ounces (635 grams)
Length 6.0 inches (15.2 cm)
Width 2.7 inches (6.9 cm)
Height 3.3 inches (8.4 cm)
POWER
Batteries 4 DL123A lithium batteries
* Battery Life 7.25 hours continuous operation
DETECTION PARAMETERS**
Stationary Moving
Detection 420m 560m
Recognition 165m 220m
Identification 62m 90m
OTHER PARAMETERS
Field of View 25° diagonal
Operating
Temperatures
-25° F (-32°C) to +122°F (+50°C)
Storage
Temperatures
-40° F (-40°C) to +160°F (+71°C)
Immersion 66 feet (20m) for 2 hours
* Performance will vary depending on actual environmental and
atmospheric conditions.
**Provides detection ranges for a man-size target.

1-5
1.8 LIST OF MAJOR COMPONENTS
The CNVD-T system 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.
Figure 1-2 CNVD-T Major Components
Table 1-2 CNVD-T Major Components
Key
Major
Component
Function
1 CNVD-T
Assembly
A thermal imaging device used for
observation, target identification, and
passive target acquisition during the day
or in adverse conditions such as light
rain, light snow, dry smoke, and low
light to total darkness.
1
2
3
4
5
6
7
8
9
10
11

1-6
Key
Major
Component
Function
2 Soft Carrying
Case
Protects the CNVD-T and accessories
while in a field environment.
3 Operator Manual Provides detailed operating and
maintenance instructions specific to the
CNVD-T.
4 Quick Reference
Guide
Provides at-a-glance operating
procedures for the CNVD-T.
5 Lens Cleaning Kit A lens brush, lens tissue, and anti-fog
solution used to clean the optical lenses
of the CNVD-T.
6 Batteries,
DL123A
Four 3V DL123A lithium batteries used
to power the CNVD-T.
7 Box Wrench, 3/8” Used to adjust the tension of the throw-
lever mounting bracket.
8 Night Vision
Spectrum Filter
When attached, prevents fogging of the
eyepiece and reduces backlighting and
loss of night vision in low light
environments.
9 Video Cable Allows for viewing the CNVD-T thermal
image on an external monitor.
10 Eye Cup,
Removable
When attached, reduces emission of
stray light from the eyepiece.
11 Interface Hood Used to improve light security and
image quality when the CNVD-T is
mounted in-line with other optical sights.

2-1
CHAPTER 2
OPERATING INSTRUCTIONS
SECTION I
PREPARATION FOR USE AND INSTALLATION
2.1 PREPARATION FOR USE
2.1.1 Unpacking the Equipment. Before unpacking the
equipment, verify that all major components listed in Table
1-2 are present. Check the CNVD-T assembly to ensure the
following additional items are included:
a. Battery Door
b. Objective Lens Cover
c. Video Jack Plug
If any of the major components or items listed above are
missing, seek guidance from the equipment issuing
authority.
2.1.2 Inspection of the Equipment. Before use, inspect all
pieces of equipment for any damage such as cracks, loose
parts, faulty cables, or other visible defects. If any damage
or defects are noted, seek guidance from the equipment
issuing authority.
2.2 BATTERY HANDLING
2.2.1 Battery Inspection. Before installation, inspect the
batteries for any cracks, dents, leakage, or bulging. Never
install a defective battery in the CNVD-T.

2-2
2.2.2 Battery Installation. Open the battery compartment by
turning the thumbscrew located in the center of the battery
door counterclockwise. Install four DL123A lithium batteries
with the positive ends facing up as shown in Figure 2-1.
Reseat the battery door on the battery compartment and
tighten the thumbscrew by turning clockwise until snug.
Figure 2-1 Battery Installation
CAUTION..
Do not ship or store the CNVD-T with batteries
installed.
NOTE
The CNVD-T may be powered by as few as two
DL123A lithium batteries. If installing only two
batteries, they must occupy slots in the battery
compartment that are diagonally across from each
other. Operating the CNVD-T with less than four
batteries will result in significantly reduced battery
run time.

2-3
2.2.3 Low Battery Power. A low battery message will
appear in the eyepiece display when approximately 20
minutes of continuous operation remain. If the batteries are
not replaced promptly when the “LOW POWER” message
appears, the display quality will deteriorate rapidly.
2.3 MOUNTING INSTRUCTIONS
The CNVD-T is equipped with a throw-lever mounting
bracket that is designed for direct attachment to weapons
with a MIL-STD-1913 rail.
Figure 2-2 Throw-Lever Mounting Bracket
2.3.1 Mounting Procedures.
WARNING..
Be sure the weapon is CLEAR and SAFE before
proceeding.
Recoil Lug
Throw-Lever
Lever Lock

2-4
NOTE
The CNVD-T may be placed at any position
(forward and aft) on the rail that is most
convenient for the operator. If, however, the
CNVD-T is removed from the rail, the operator
should note the position at which it was zeroed,
and return it to that same position to ensure that
zero is retained.
a. Pull the lever lock out to the full open position.
b. Swing the throw-lever toward the front (objective
lens) of the CNVD-T to allow the mounting bracket
sufficient space to fit over the MIL-STD-1913 rail.
c. Position the mounting bracket over the rail ensuring
that the recoil lug is properly seated in one of the
rail’s recoil grooves.
CAUTION..
If too much or too little force is required to perform
step d., the throw-lever must be adjusted to
properly secure to the rail of the host weapon.
See paragraph 3.3.1 for adjustment procedures.
d. While pushing down and forward on the CNVD-T,
swing the throw-lever toward the back (eyepiece) of
the CNVD-T until it is snug against the mounting
bracket.
e. Push the lever lock in to engage the locking
mechanism.

2-5
2.3.2 Mounting with Other Optics. When mounting the
CNVD-T in-line with a day optic, first stretch the interface
hood over the eyepiece of the CNVD-T. Mount the day optic
to the rail in accordance with manufacturer’s instructions.
Mount the CNVD-T to the weapon rail (in front of the optical
sight) per paragraph 2.3.1. Ensure the interface hood
covers the objective lens of the optic (see Figure 2-3).
Figure 2-3 CNVD-T Mounted with ACOG®
2.4 OBJECTIVE LENS AND EYEPIECE
2.4.1 Objective Lens. Whenever the CNVD-T is not being
used, the objective lens cover should be pulled down over
the objective lens to protect it from possible damage. The
objective lens cover should also be installed when calibrating
the CNVD-T (see paragraph 2.12.3).

2-6
2.4.2 Eyepiece. The eyepiece assembly may be fitted with
one or both of the following components:
2.4.2.1 When installed, the night vision spectrum filter
prevents fogging of the eyepiece, and reduces backlighting
and loss of night vision in low light environments. The filter /
shield is installed as follows:
a. Place the filter / shield over the eyepiece with the
threaded side down.
b. Carefully turn the filter / shield clockwise to screw it
into the eyepiece assembly.
c. Tighten until snug.
2.4.2.2 When attached, the eyecup reduces emission of
stray light from the eyepiece. To install, stretch the base of
the eyecup into place over the eyepiece assembly. Rotate
the eyecup to obtain a proper eye socket and cheek weld.

2-7
SECTION II
OPERATING PROCEDURES
2.5 CONTROLS AND ADJUSTMENTS
Figure 2-4 shows the features and controls for the CNVD-T.
This section provides details regarding their function and
operation.
Figure 2-4 CNVD-T Controls and Adjustments
Objective
Lens Cover
Objective
Focus Ring
RIGHT
Button
DOWN
Button
POWER
Button
Video Jack /
Jack PlugEyepiece
Assembly
MENU / ZOOM
Button
LEFT
Button
UP
Button

2-8
2.6 POWER
Pressing the POWER button will turn the unit on. The
CNVD-T will power up with the same settings selected as
when the system was last turned off.
With the system powered on, the CNVD-T can be placed in
a Standby Mode by pressing and holding the MENU / ZOOM
button for about 3 seconds. Pressing any of the LEFT /
RIGHT / UP / DOWN buttons will reactivate the unit. Upon
“waking” from Standby Mode, the unit will retain all settings
entered by the operator prior to being placed in standby.
Standby Mode decreases power consumption by
approximately 10% by shutting off the eyepiece display.
NOTE
In Standby Mode, the CNVD-T will continue to
draw a significant amount of power that will
eventually drain the batteries. The unit should be
turned off if it is not expected to be used.
To turn off, press and hold the POWER button for
approximately 3 seconds as the messages OFF? then OFF!
appear sequentially in the eyepiece display. Release the
POWER button when the eyepiece display turns dark.
2.7 BUTTON FUNCTIONS
The CNVD-T buttons are multifunctional and produce
different results depending on how they are pressed and
whether or not the Main Menu is displayed.
2.7.1 MENU / ZOOM Button. The MENU / ZOOM button
has a raised dimple that allows it to be easily identified by
touch.

2-9
2.7.1.1 Pressing the MENU / ZOOM button calls up the
Main Menu (see section 2.12).
2.7.1.2 Pressing the MENU / ZOOM button twice in rapid
succession (double-tapping) toggles between a 1x and 2x
magnified viewed image (see section 2.12.1).
2.7.2 UP / DOWN Buttons. The UP / DOWN buttons are
used to control the brightness of the display. They are also
used to scroll through menu items when the Main Menu is
displayed.
2.7.3 LEFT / RIGHT Buttons. The LEFT / RIGHT buttons
are used to control the contrast (gain) settings of the thermal
image. They are also used to scroll through sub-menu
options, when displayed.
2.8 BRIGHTNESS ADJUSTMENT
When the Main Menu is NOT displayed, pressing either the
UP or DOWN button calls up the brightness control settings.
Brightness controls are presented in the eyepiece display as
shown in Figure 2-5.
Figure 2-5 Brightness Control
BRIGHTNESS
MAX
MIN
Status Bar

2-10
Brightness of the display is adjusted by pressing the UP /
DOWN buttons to move the status bar along the MIN / MAX
scale. Repeatedly pressing the UP / DOWN buttons will
move the status bar in single increments. Pressing and
holding the UP / DOWN buttons will auto-scroll the status
bar in multiple increments.
If the UP / DOWN buttons are not pressed within 3 seconds,
the brightness scale will disappear and the CNVD-T will
revert to normal viewing mode. Once adjusted, the
brightness will remain at the applied setting (even if the
CNVD-T is turned off) until readjusted by the operator.
2.9 CONTRAST (GAIN) ADJUSTMENT
When the Main Menu is NOT displayed, pressing either the
LEFT or RIGHT button calls up the contrast (gain) control
settings. Contrast controls are presented in the eyepiece
display as shown in Figure 2-6.
Figure 2-6 Contrast (Gain) Control
Contrast is manually adjusted by pressing the LEFT / RIGHT
buttons to move the status bar along the LOW / HIGH scale.
Repeatedly pressing the LEFT / RIGHT buttons will move
the status bar in single increments. Pressing and holding
the LEFT / RIGHT buttons will auto-scroll the status bar in
multiple increments.
CONTRAST LOW HIGH
MANUAL

2-11
If the LEFT / RIGHT buttons are not pressed within 3
seconds, the contrast scale will disappear and the CNVD-T
will revert to normal viewing mode. Once adjusted, the
contrast will remain at the applied setting (even if the CNVD-
T is turned off) until readjusted by the operator.
2.9.1 Auto-Gain Control. The CNVD-T may also be placed
in one of two auto-gain modes:
a. AUTO-LOW mode is accessed by repeatedly
pressing the RIGHT button to move the status bar
along the contrast scale. As the status bar
approaches the extreme right (HIGH) end of the
scale, the word MANUAL will be replaced by the
word AUTO-LOW.
b. While in AUTO-LOW mode, pressing the RIGHT
button once more will place the CNVD-T in AUTO-
HIGH mode. The word AUTO-LOW will be replaced
by the word AUTO-HIGH.
NOTE
Adjusting the contrast in MANUAL mode allows for
lower and higher settings than either of the AUTO
modes.
2.10 FOCUS ADJUSTMENT
The objective lens must be focused for the viewing distance
being observed. Rotate the objective focus ring for best
image clarity. A change in viewing distance requires that the
lens be refocused. However, if already focused for a
distance of at least 20m, no change in focus is required
between this distance and infinity.

2-12
2.11 STARTUP PROCEDURES
To achieve optimal performance and image clarity, the
following procedures should be accomplished in the order
presented, each time the CNVD-T is to be placed into
operation:
a. Install batteries per paragraph 2.2.2.
b. Turn on the CNVD-T by pressing the POWER
button. Wait 2 to 5 seconds until the system begins
imaging.
c. Install the objective lens cover and perform a
calibration as described in paragraph 2.12.3.
d. Flip up the objective lens cover and adjust the
brightness setting to a comfortable viewing level as
described in section 2.8.
e. Adjust the contrast (gain) setting to a comfortable
viewing level as described in section 2.9.
f. While looking through the eyepiece at an object at
least one meter away, rotate the objective focus ring
until the best (sharpest) thermal image is obtained.
2.12 MENU FUNCTIONS
With the CNVD-T turned on, access the Main Menu by
pressing the MENU / ZOOM button. The Main Menu will
appear in the eyepiece display as shown below.
Figure 2-7 Main Menu
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-13
Menu items are then selected (underlined) by scrolling with
the UP / DOWN buttons. Where available, sub-menus are
accessed by pressing the LEFT / RIGHT buttons. Activation
of the selected menu item is accomplished by again pressing
the MENU / ZOOM button. If there is no button activity
within approximately 10 seconds, the Main Menu will
disappear and the CNVD-T will revert to normal viewing
mode. Once activated, menu options will remain at that
setting (even if the CNVD-T is turned off) until reset by the
operator.
2.12.1 ZOOM 1X / ZOOM 2X. Activating the ZOOM 1X /
ZOOM 2X menu item toggles between a 1x and 2x
magnified viewed image. Toggling between ZOOM 1X and
ZOOM 2X may also be accomplished when the Main Menu
is NOT displayed by double-tapping the MENU / ZOOM
button. When in ZOOM 2X mode, the word “ZOOM” will
appear near the bottom of the display and blink once every 5
seconds.
WARNING..
Activating ZOOM 2X when the CNVD-T is used in-
line with other optical sights may induce an error in
the aiming function of those devices.
Figure 2-8 Menu – ZOOM 1X / ZOOM 2X
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-14
2.12.2 Polarity (POL). Activating the POL menu item allows
the operator to toggle between white hot (WH) and black hot
(BH) polarity modes and is accomplished as follows:
Figure 2-9 Menu – Polarity (POL)
which calls up this sub-menu:
Use the LEFT / RIGHT buttons to select the desired polarity
mode and press the MENU / ZOOM mode to activate.
When in white hot mode, objects with the hottest thermal
signature will appear white and those with the coolest
thermal signature will appear black. In black hot mode, the
reverse is true.
2.12.3 Calibration (CAL).
NOTE
Failure to cover the objective lens prior to initiating
a calibration may result in a distorted picture or the
presence of ghost images in the eyepiece display.
WH BH
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-15
Activating the CAL menu item initiates a calibration of the
CNVD-T. After prolonged use, or after transitions from one
temperature extreme to another, a degradation of the
thermal image may be noticed. When this occurs, the
CNVD-T should be calibrated as follows:
a. Install the objective lens cover over the objective
lens to block out all available light.
b. Activate the CAL menu item as shown below.
c. The message “CALIBRATING” will appear as the
unit performs the calibration. Once complete, the
message will disappear and the CNVD-T will revert
to normal viewing mode.
d. Remove the objective lens cover to resume normal
viewing.
Figure 2-10 Menu – Calibration (CAL)
The CNVD-T is equipped with an internal sensor that detects
significant changes in temperature. When this condition
occurs, the message “RECAL” will appear in the eyepiece
display, indicating that the operator should perform a
calibration of the CNVD-T as described above.
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-16
2.12.4 Reticle Intensity (RETINT). Activating the RETINT
menu item allows the operator to adjust the color of the
reticle from white, through the gray scale to black, to provide
the best contrast with the viewed image.
Figure 2-11 Menu – Reticle Intensity (RETINT)
During adjustment, a color scale is presented in the
eyepiece display as shown in Figure 2-12.
Figure 2-12 Reticle Intensity Control
Reticle intensity is adjusted by pressing the UP / DOWN
buttons to move the status bar along the WHITE / BLACK
scale. If the UP / DOWN buttons are not pressed within 3
seconds, the reticle intensity scale will disappear and the
CNVD-T will revert to normal viewing mode. The unit may
RETICLE
WHITE
BLACK
Status Bar
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-17
be placed in an auto-intensity mode by repeatedly pressing
the UP button until the status bar is at the extreme upper
(WHITE) end of scale and the word AUTO appears.
2.12.5 Reticle (RET). Activating the RET menu item allows
for repositioning the reticle and toggling it on or off.
Figure 2-13 Menu – Reticle (RET) Control
Once selected, the following sub-menu will appear in the
eyepiece display:
2.12.5.1 Activating the POS (position adjustment) sub-menu
item allows for adjusting the position of the reticle in the
eyepiece display.
a. Adjustments are made using the UP / DOWN / LEFT
/ RIGHT buttons. When adjusting reticle position,
AZ (azimuth) and EL (elevation) values appear in
the lower left corner of the display as shown in
Figure 2-14. The numbers represent “clicks” of the
reticle. Azimuth and elevation values can rapidly be
returned to 0 by pressing the UP and DOWN buttons
or the LEFT and RIGHT buttons simultaneously.
EXIT POS OFF
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-18
b. When in ZOOM 1X mode, the reticle is moved in
2-pixel increments each time the UP / DOWN / LEFT
/ RIGHT buttons are pressed. The reticle is moved
in 1-pixel increments when in ZOOM 2X mode. See
section 2.15 for click equivalents and zeroing
information.
Figure 2-14 Reticle Position Adjustment
2.12.5.2 Activating the OFF sub-menu item turns the reticle
off. Turning the reticle back on is accomplished by selecting
the RET menu item from the Main Menu.
2.12.6 RS170 / VGA. Activating the RS170 / VGA menu
item toggles between these two display formats. VGA
format is appropriate for high-motion viewing. RS170 format
is appropriate for all other applications. See section 2.14 for
instructions on how to connect the CNVD-T to an external
monitor for viewing live thermal imagery.
Figure 2-15 Menu – RS170 / VGA
POS ADJ
AZ 8 L
EL 2 U
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-19
NOTE
When viewing the CNVD-T thermal image on an
external monitor, the RS170 video format must be
selected. Using the VGA video format for this
purpose will result in an extremely distorted image.
2.12.7 Exit (EXIT). Exiting the Main Menu is accomplished
by either activating the EXIT menu item or pressing the
LEFT or RIGHT button. Exiting the Main Menu saves all
changes made and returns the CNVD-T to normal viewing
mode.
NOTE
The message “NO SAVE” will appear at the
bottom of the display if settings could not be saved
due to low battery power. Changes will be made,
but not saved for future use.
Figure 2-16 Menu - Exit
Or to exit any
time:
or
ZOOM 1X
POL
CAL
RETINT
RET
RS170
EXIT

2-20
2.13 SHUTDOWN PROCEDURES
a. Press and hold the POWER button for
approximately 3 seconds as the messages OFF?
then OFF! appear sequentially in the eyepiece
display. Release the POWER button when the
eyepiece display turns dark.
b. Install the objective lens cover over the objective
lens.
c. Remove all batteries; place batteries and the
CNVD-T in the soft carrying case.
2.14 EXTERNAL MONITOR
The CNVD-T is supplied with a video cable that is used to
connect the unit to an external monitor for viewing live
thermal imagery. The video cable is shown in Figure 2-17.
Figure 2-17 Video Cable
CNVD-T
Connector
BNC
Connector

2-21
Viewing live imagery from the CNVD-T on an external
monitor is accomplished as follows:
a. Remove the video jack plug (captive to the CNVD-
T2) from the video jack.
b. Plug the CNVD-T connector into the video jack.
c. Attach the BNC connector to an external monitor or
television.
d. Follow the CNVD-T startup procedures contained in
section 2.11 and ensure RS170 video format is
selected from the Main Menu as described in
paragraph 2.12.6.
e. Follow instructions provided by the manufacturer of
the monitor or television for viewing video from an
external device.

2-22
SECTION III
ALIGNMENT / ZEROING
2.15 ZEROING ON A 25-METER RANGE
2.15.1 Clip-On.
WARNING..
Activating ZOOM 2X when the CNVD-T is used in-
line with other optical sights may induce an error in
the aiming function of those devices.
When being used in-line with an optical sight, the CNVD-T
should be placed in ZOOM 1X, the reticle should be turned
off, and zeroing procedures associated with the primary sight
should be used. Placing the CNVD-T in front of an already
zeroed optic / weapon combination does not necessitate
rezeroing.
2.15.2 Stand-Alone. Each click of the CNVD-T reticle
moves the shot group about 2.8cm at 25m (when in ZOOM
1X). Other click equivalents are provided in Table 2-1.
Changing the position of the reticle corresponds to a
subsequent change in shot group movement (i.e., the UP
button will move the strike of the round up).
Table 2-1 Reticle Adjustments
Single Click Equivalents
10m 25m 100m 150m 300m
ZOOM 1X 1.1cm 2.8cm 11.0cm 16.5cm 33.0cm
ZOOM 2X 0.6cm 1.4cm 5.5cm 8.3cm 16.5cm

2-23
When being used as a stand-alone device, the example
below shows how to align the CNVD-T2 to be parallel with
the rail of the host weapon on a 25-meter range. This
“infinite parallel” configuration is appropriate for many
mission profiles. Once parallel, the CNVD-T2 / weapon
combination may be zeroed in accordance with established
unit, departmental, or agency procedures.
a. Once mounted to a weapon, the distance from the
top of the rail to the centerline of the CNVD-T
objective lens is 5.9cm. Calculate the designated
strike point by adding this value to the distance from
the center of the weapon barrel to the top of the
weapon rail (3.1cm for an M4/M4A1). Therefore, in
this example, the designated strike point is 5.9cm +
3.1cm = 9.0cm down from the center of the target.
Figure 2-18 Strike Point Calculation
5.9cm

2-24
b. Mark the designated strike point on a standard 25-
meter zeroing target.
c. Draw a designated strike zone around the strike
point that corresponds in size to an acceptable
degree of desired accuracy.
Figure 2-19 Designated Strike Zone
d. Mount the target on an “E” silhouette or other
suitable surface at 25 meters.
e. Mount the CNVD-T to the weapon.

2-25
f. Turn on the CNVD-T using the startup procedures in
section 2.11.
g. Align the CNVD-T reticle with the center of the target
per paragraph 2.12.5.
h. Fire a 3-round shot group and note the center of the
shot group relative to the designated strike point.
i. Adjust the position of the reticle to move the center
of the shot group to the designated strike point.
j. Fire another 3-round shot group and again observe
the center of the new shot group relative to the
designated strike point.
k. When 2 out of 3 rounds are in the designated strike
zone, the CNVD-T is aligned to be parallel with the
rail of the host weapon.

3-1
CHAPTER 3
MAINTENANCE AND SERVICING
SECTION I
MAINTENANCE AND TROUBLESHOOTING
3.1 MAINTENANCE PROCEDURES
The operator should inspect the CNVD-T before each use
and after it has been in extreme conditions, such as
prolonged exposure to intense temperatures. The following
procedures will prolong the life of the CNVD-T and help
ensure safe operation.
3.1.1 Batteries. Inspect the batteries for cracks, dents,
leakage, or bulging. If a battery shows signs of damage,
remove and dispose of properly. Replace batteries as
required per paragraph 2.2.2.
3.1.2 Battery Compartment. Inspect the battery
compartment for dirt, dust, or corrosion. Dirt or debris that
cannot be shaken loose from the battery compartment may
be removed using a clean cloth. If necessary, clean battery
contacts with a cotton swab and isopropyl alcohol.
3.1.3 Objective Lens and Eyepiece. Inspect the objective
lens and eyepiece for dirt, dust, and grime. Remove any
large particles or loose dirt using the lens brush. Fine
cleaning of the optical surfaces should be performed using
the optical cloth and cleaning solution. Avoid using
excessive force as this may scratch the lenses.

3-2
3.1.4 CNVD-T Housing. Inspect the CNVD-T housing for
any signs of damage including cracks, missing parts, and
any other visible defects. Rinse the CNVD-T housing with
water and wipe clean with a soft cloth. Clean around buttons
and attachment points with a cotton swab.
3.1.5 Video Jack. Inspect the video jack for corrosion, dirt
and damage. Gently remove any large particles of foreign
matter and clean the contacts with a cotton swab and
isopropyl alcohol.
3.2 TROUBLESHOOTING PROCEDURES
The procedures below will help the operator correct some of
the basic problems that may arise with the CNVD-T during
operation. If the equipment malfunction is not listed, or the
actions listed do not correct the fault, refer to section 3.4 for
additional guidance.
a. No display is present when turning on the CNVD-T.
(1) Ensure the CNVD-T is not in Standby Mode by
pressing any of the arrow buttons.
(2) Adjust display brightness per section 2.8.
(3) Adjust contrast setting per section 2.9.
(4) Cycle the power button.
(5) Verify that the batteries are properly installed per
paragraph 2.2.2.
(6) Replace existing batteries with fresh batteries.
(7) Clean the battery compartment per paragraph
3.1.2.
b. Display is on but no image is present.
(1) Flip open the objective lens cap.
(2) Focus on an object in the distance.

3-3
(4) Place the unit in auto-gain mode per section
2.9.1.
c. No Reticle is visible.
(2) Ensure reticle is turned on per paragraph 2.12.5.
(3) Adjust reticle intensity per paragraph 2.12.4.
d. Poor or degraded image.
(1) Perform a calibration per paragraph 2.12.3.
(2) Remove night vision spectrum filter, if installed.
Clean eyepiece and objective lens.
(3) Inspect the night vision spectrum filter for dirt,
grime, scratches, and cracks. Clean and/or
replace, if necessary.
(4) Replace existing batteries with fresh batteries.
3.3 CORRECTIVE MAINTENANCE PROCEDURES
See section 3.4 of this chapter for guidance regarding
maintenance and/or repair actions beyond those described
in this manual.
3.3.1 Adjusting Throw-Lever Tension. The throw-lever
mounting bracket has a locknut that adjusts the tension
required to clamp it to the weapon rail. It is preset at the
factory but may need adjustment when initially mounted to
the rail of the host weapon. If adjustment is required, the
following procedures apply and are performed with the
CNVD-T removed from the host weapon:

3-4
CAUTION..
Creating too much tension with the locknut may
result in damage to the mounting bracket when the
throw-lever is forced against the weapon rail.
Creating too little tension with the locknut may
allow for movement of the CNVD-T on the rail.
Never completely remove the locknut from the
mounting bracket.
a. Swing the throw-lever closed (against the body of
the CNVD-T), then push in the lever lock to engage
the locking mechanism.
b. Using the provided 3/8” box wrench, adjust the
locknut using slight movements (2 or 3 degrees).
Turning the locknut counterclockwise will decrease
tension on the throw-lever. Turning it clockwise will
increase tension on the throw-lever.
Figure 3-1 Adjusting Throw-Lever Tension
c. Test each adjustment by attempting to mount the
CNVD-T to the weapon rail per section 2.3.1.
Locknut

3-5
3.3.2 Replacing Objective Lens Cover and Lens Cover
Strap. No tools are required to perform this procedure.
a. Pull both ends of the existing strap off their
respective retaining pins (located on the CNVD-T
housing).
b. While holding the lens cover in one hand, use the
other hand to pull the strap over, and off, the center
stud of the lens cover.
c. Work the large, center eye of the replacement strap
over the center stud of the lens cover, ensuring it
lays flat against the surface with the glossy side
down.
d. Loop one of the strap’s smaller eyes over one of the
retaining pins.
e. Lead the strap’s remaining eye over the top of the
housing as shown in Figure 3-2 and loop it over the
other retaining pin.
Figure 3-2 Replacing Objective Lens Cover
f. Flip the lens cap down and over the objective lens.

3-6
3.3.3 Replacing Battery Door Lanyard. Vibra-Tite® (or
equivalent) and a T-7 Torx wrench are required to perform
this procedure.
NOTE
This procedure is best performed with the battery
door installed (closed).
NOTE
Because the lanyard mounting screw is installed at
the factory with a small amount of bonding
material, it is normal to encounter resistance when
removing it.
a. Use a T-7 Torx wrench to remove the lanyard
mounting screw.
b. If necessary, pull the lanyard over, and off, the
battery door thumbscrew.
c. Stretch the large eye of the replacement lanyard
over the battery door thumbscrew.
d. Feed the smaller eye of the lanyard down through
the slot in the battery door.
e. Arrange the battery door hardware so that the
pieces (e.g., washer, retaining lug, mounting screw)
can be assembled as shown in Figure 3-3.

3-7
Figure 3-3 Replacing Battery Door Lanyard
f. Apply a small bead of Vibra-Tite® (or equivalent) to
the threads of the mounting screw and use a T-7
Torx wrench to install.
3.3.4 Replacing Video Jack Plug Assembly. Vibra-Tite® (or
equivalent) and a T-7 Torx wrench are required to perform
this procedure.
a. Turn the video jack plug counterclockwise until it is
unscrewed from the video jack.
NOTE
Because the lanyard mounting screw is installed at
the factory with a small amount of bonding
material, it is normal to encounter resistance when
removing it.

3-8
b. Use a T-7 Torx wrench to remove the lanyard
mounting screw.
c. Position the replacement parts so that they can be
assembled as shown in Figure 3-4.
Figure 3-4 Replacing Video Jack Plug Assembly
d. Apply a small bead of Vibra-Tite® (or equivalent) to
the threads of the mounting screw and use a T-7
Torx wrench to install.

3-9
SECTION II
SERVICE / PACKING AND UNPACKING
3.4 RETURN INSTRUCTIONS
3.4.1 For service, repair, or replacement, first e-mail
returns.insight@l-3com.com or call toll-free 1-877-744-4803.
3.4.2 To assist with determining if the item is repairable, the
following information shall be provided:
a. Serial number of the defective item;
b. Thorough description of the malfunction, defect, or
damage; and
c. If known, an explanation as to how the malfunction,
defect or damage occurred.
If the item is determined to be Beyond Economical Repair,
follow applicable replacement procedures through your
Property Officer. If it is determined that the item is under
warranty, or should be returned for repair, a Return Material
Authorization (RMA) number will be provided.
3.4.3 When returning the CNVD-T for service / repair, the
following procedures should be followed to prevent any
additional damage:
a. Be sure that the CNVD-T is free of all contaminants
such as dirt or any other foreign material.
b. Remove batteries.
c. Place the CNVD-T in the soft carrying case.

3-10
3.4.4 Place the item and a copy of the test report or detailed
description of the failure in a suitable packing container.
Mark the package with “Field Return” and the RMA number.
Ship via fastest, traceable, pre-paid means to L-3 Insight
Technology Incorporated, 9 Akira Way, Londonderry, NH
03053.
3.5 WARRANTY INFORMATION
The CNVD-T is under warranty from defects in material and
workmanship for a minimum of one (1) year from the date of
manufacture. This warranty does not protect against
damage due to misuse, mishandling or battery leakage.
Additional warranty coverage may have been provided
through the contract or via subsequent contract extension.
Specific warranty terms can be obtained from your
procurement agent, Contracting Officer or L-3 Insight
Technology Incorporated.
3.6 NON-WARRANTY INFORMATION
Non-warranty repairs are subject to an evaluation fee. The
item will be tested and evaluated for failure, then customer
permission and payment terms are obtained prior to any
repairs being performed.

A-1
APPENDIX A
REPAIR PARTS / ACCESSORIES
A.1 Scope
This Appendix provides an organizational level parts list for
the CNVD-T. Table A-1 lists spares, parts, and assemblies
authorized for repair / replacement at the operator level.
Special tools or equipment are not required for these repairs.
Table A-1 Repair Parts / Accessories
NSN
PART
NUMBER
DESCRIPTION
TBD ITI-501-01 Soft Carrying Case
N/A CQB-TM-ITI Operator Manual
N/A CQB-QRG-ITI Quick Reference Guide
5855-01-561-8116 CQB-630-02 Interface Hood
5855-01-579-5688 CQB-670-02 Eyecup
5855-01-579-5695 CQB-506-A2 Filter, NV Spectrum
5855-01-561-8559 TGS-104 Video Cable
5120-01-582-2832 ITI-150 Box Wrench, 3/8”
6135-01-559-9641 DL123ABK Battery, 3V, lithium
5855-01-561-8630 ITI-015 Lens Cleaning Tissue
5855-01-561-8616 ITI-013 Lens Brush
6850-01-561-8223 ITI-011 Lens Cleaning Solution
TBD CQB-626-02 Objective Lens Cap
TBD CQB-627-02 Objective Lens Cap Strap
TBD CQB-625-A2 Lanyard, Battery Door
5340-01-561-7933 CQB-011-A2 Battery Door w/ Lanyard
5305-01-561-8555 MHW013-23A
Retaining Screw, Battery
Door Lanyard
5855-01-561-8085 CQB-193
Retaining Lug, Battery Door
Lanyard
5310-01-561-8067 CQB-067-02
Washer, Battery Door
Lanyard
5303-01-575-3158 MHW013-022AB
Retaining Screw, Video
Jack Plug

A-2
Table A-1 Repair Parts / Accessories (cont’d)
NSN
PART
NUMBER
DESCRIPTION
TBD MS15795-844B Washer, Video Jack Plug
5855-01-561-8141 CQB-635-02 Video Jack Plug
5855-01-561-8057 CQB-062-02
Retaining Strap, Video Jack
Plug

The CNVD-T
Is designed and produced by:
L-3 Insight Technology Incorporated
9 Akira Way
Londonderry, NH 03053
USA
www.insighttechnology.com
This manual contains technical data whose export is governed
by the U.S. International Traffic in Arms Regulations (ITAR).
This information must not be transferred to a foreign person
without the proper authorization of the U.S. Government. Please
contact L-3 Insight Technology for more information.
© 2010 L-3 Insight Technology Incorporated

Instruction Manual EOTECH CNVD-T | Optics Trade

Instruction Manual EOTECH CNVD-T | Optics Trade

More Related Content

What's hot

Similar to Instruction Manual EOTECH CNVD-T | Optics Trade

More from Optics-Trade

Recently uploaded

Instruction Manual EOTECH CNVD-T | Optics Trade