G. Device operating instructions
1. Put one 3V CR-123 lithium battery observing the polarity indications on the battery compartment (2) surface.

2. Remove the protective cover (4) when it’s used at night or in low light condition. NOTE: To protect the image intensifier tube, keep the lens cap on the objective lens when the monocular is not in use or when checked out in daylight conditions. You might test the device through the pinhole in the center of protective cover (4) and the time should be less than 10 minutes.

3. Turn on the device by pushing operation button (1) and moving it to ON. After this, you can start observing the scene through the eye piece (5). The greenish-lit screen of the image tube means that the device is working normally. A green light appear in the edge of eyepiece at the same time and it serves as the power indicator aswell as low battery indicator. If the indicator light starts flickering, it means the battery is running low. It is the time to change your battery. Activate the IR illuminator by another pushing button(1)and moving it to IR when the monocular is working in the conditions of extreme low light or total darkness, at the same time, it starts focusing the light. A red light appears in the eyepiece and is emitted from IR illuminator (8) to indicate that the IR illuminator is operating. NOTE: The light from the illuminator can be detected by others that are using night vision devices.

4. Focus the objective lens (3) by rotating the objective lens ring for sharper image of viewed object. Adjust eyepiece (5) by rotating the eye piece ring for sharper image of intensifier screen. Repeat these two steps for 3 times, then you might gain the sharpest image.

5. You may focus the IR light for additional distance by placing the focusing lens of the IR pivot plate ( 10 ) onto the window of the IR illuminator ( 8 ). This will extend the range the useful range of the IR.

6. The light detector (9) can detect the surrounding illuminance, the device will be shut off automatically when the ambient light exceeds40 Lux in 10 seconds.

7. When you finish observing, push the operation button(1) and move it to OFF, then the device stops working.

H. Flip up head mount installation
A. Fitting the head mount
Adjust the head mount first before attaching the NV unit to it. 8. Loosen all the straps and place the head mount on your head. 9. Fit the head mount to your head size and tighten all the straps. 10. And last you will need to fixate the chin strap with Velcro tape. B. NV installation and adjustment
Now you are ready to mount the NV monocular onto head mount. To mount the monocular to a head mount, perform the following:
1. Loosen the screw ( A ). Push the button ( B ) and insert the rail of the head mount into the socket ( C ) of the mount assembly. Then tighten the screw (A) after adjusting it to a good position you need. Now the mount assembly is fixated onto the head mount firmly.

2. Turn the screw (D) counter-clockwise and insert the rail of the monocular into this socket till the position of dent in the middle of the rail. Now the device is fixated onto the head mount tightly.

3. Place the head mount with monocular onto your head. (as Figure01 shows)

4. The monocular head mount has a flip-up mechanism. Push the button ( F ) on the side of mount and lift the unit up until the unit reaches in the top position. When the device is placed in the top/up position it will turn off automatically.

5. Push the same button ( F) to lower monocular to the viewing position. Turn the device on for continuation of the operation.

6. The monocular can be placed before the right or left eye. In order tore-adjust the monocular for use with another eye, push the button(G)and move the device along the slide-rail ( H ) to comfortable position at the other side.

I. Precautions
1. Do not disassemble the unit.

2. It’s better to use device under +5℃ to +40℃. After the unit usage in temperatures below zero, wait at least 3 hours at room temperature ,to avoid condensation accumulating on the internal lens surfaces and the consequent fogging caused by extreme temperature differences.

3. Keep the device in soft carrying bag, ventilated and dry place with temperature which does not exceed +15℃. Keep away from heating device and avoid direct sunlight and high humidity which does not exceed 70%.

4. NVD should be used in nighttime and can’t be aim at strong light. If you have to test it during daytime, the front lens cap should never be removed. You can observe the target through the hole in the protection cap.

5. Use good quality lithium battery or alkaline cell, as bad quality batteries will effect the performance of the NVD and easily damage the device.

6. Try to avoid the rain and mist, and avoid dropping, shaking and collision.

7. Use clean soft cloth and dampened in alcohol, if necessary.

8. A useful tip is to remove the battery when the night vision will be not in use for over 3 days to prevent battery leakage and damaging the device. NOTE: It is normal that the device can not be turned on when the ambient light exceeds 40 Lux. This device has protection system, which cuts off the image intensifier when ambient light level exceeds the limit of 40 Lux during a 10 seconds period.

Failure to follow the above precautions may cause the unit damage and will void the manufacturer’s warranty.

J. Troubleshooting
If the device does not turn on
1. Reinstall the battery with the correct polarity.

2. Replace battery.

3. Clean the battery compartment, focusing on the contact points.

The observed image flickers or flashes
This means there is too much light(e.g. observation during twilight conditions).Turn off the unit or place the objective lens cover. The unit will
function normally in light conditions not in excess of 0.1Lx(full moon).

The image is missing or not focused
1. Re-focus the unit by adjusting objective lens. Adjust diopter setting by rotating eye piece, if necessary.

2. Check the cleanliness of the objective surface and eye piece and clean if necessary.

3. Replace batteries.

4. In extreme low light conditions, activate the built-in IR illuminator.

Image disappeared or its quality worsened
1. Automatic shut off might occurred to protect the unit from excessive light. Attach the objective lens cover and ensure that unit started to function normally. Turn the unit off and wait until the conditions darken to continue observation.

2. Bright light sources(e.g. street lights)may cause visibility to decrease or disappear. Turn the monocular away from the light source, visibility will restore itself in several minutes.
You see black dots on the screen
These dots are minor cosmetic blemishes resulting from the image intensifier production processes and are not a sign of a defective or low quality unit. These dots do not interfere with the reliability and performance of the monocular.