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5

clEANINg ThE EyEpIEcE

you may need to clean the eyepiece of the MO-4 from time to time in order to guarantee top 

performance. When you receive your MO-4 you should check for dust on the eyepiece of the 

unit.
First you will need to remove the eyepiece. To remove the eyepiece you will need to ini-

tially loosen 2 set screws that can be found on the base. Then unscrew the eyepiece 

counter-clockwise to remove it.

NOTE: 

You do not have to remove the set screws completely, they are very small and easy to 

misplace.

cAuTION:

 Use only Photographic lens cleaning tissue on these surfaces. Be careful not to 

scratch, or smudge any of these surfaces. When using compressed air to blow dust away, make 

sure to avoid inverting the can while spraying. This may cause frozen propellent to exit the can, 

which can result in serious damage problems of the glass and phosphor screen.

sTORAgE AND cARE

•  If the device is not to be used for an extended period of time (more than 10 days) remove the 

battery.

•  Avoid touching lenses. If Fingerprints or traces of dirt or dust appear clean surface with a 

Photographic lens cleaning tissue.

•  Keep the lens cap/daylight filter on when not in use.
•  The MO-4 is not harmful to the user or the environment.
•  Do not disassemble except to clean the front lens and eyepiece, install the 6x Doubler or any 

other “C” mount lens: 

it will void your warranty.

•  Evaluate the scopes function by looking through it in a lit environment with the daylight filter 

lens cap on. Never use in daylight without the daylight filter lens.

•  

Never point the MO-4 at a bright light source.

•  Adverse atmospheric conditions such as fog, smog or haze and a lack of ambient light (moon 

or starlight) may diminish the effective viewing distance.

•  If you use the rubber eyecaps for a long period of time, you may suffer skin inflammation. If 

you develop any symptoms, consult a doctor immediately.

TROuBlEshOOTINg

Q:

 Flashes, flickers or clicking occur while operating

s:

 if it occurs within the first five minutes of inserting new batteries it is normal and the device 

will resume normal operation soon thereafter. if it occurs for more than 10 minutes contact 

aTN for service instructions.

Q:

 dark spots on screen.

s:

 These are either cosmetic blemishes in the intensifier tube or dust particles. dust particles 

can be cleaned following instructions in “Cleaning eyepiece” section.

Q:

 screen becomes darker than in previous use.

S: Replace batteries. If the problem persists contact your dealer or other authorized service 

representative for service instructions.

Q:

 image not clear.

s:

 adjust objective lens and/or the eyepiece. Turn on ir.

Summary of Contents for MO-4

Page 1: ...of State or the US BIS Department of Commerce It is unlawful and strictly prohibited to export or attempt to export or otherwise transfer or sell any hardware or technical data or furnish any service...

Page 2: ...igital control for Proximity Sensor Objective lens protective cover Built in infra red illuminator Computerized proximity sensor 5 Diopter Adjustment 90mm F 1 7 lens for maximum clarity Two 3V lithium...

Page 3: ...es have been designed according to the latest computer technology Onboard computer systems identify the users intention of looking through the scope When the scope is brought to the user s eye the sco...

Page 4: ...night vision The IR light greatly enhances the performance of the MO 4 while remaining almost totally invisible to the naked eye The IR illuminator on the MO 4 is located to the side of the battery co...

Page 5: ...cular out of the case Install the batteries into the housing with the polarity order as shown on the scope Battery type 3 Volt Lithium CR123A Press the button marked O to turn unit on with the protect...

Page 6: ...r or the environment Do not disassemble except to clean the front lens and eyepiece install the 6x Doubler or any other C mount lens it will void your warranty Evaluate the scopes function by looking...

Page 7: ...ducts sold and services performed by ATN to the Customer shall not be interpreted construed or regarded either expressly or implied as being for the benefit of or creating any obligation toward any th...

Page 8: ...fice 1341 San Mateo Avenue South San Francisco CA 94080 phone 800 910 2862 650 989 5100 fax 650 875 0129 European Office The following countries can use our toll free number 00 800 9102 8620 Austria F...

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