Newcon Optik NVS 6 operation manual Nvs

NVS 6

MANUAL

right eye, as well as clear view of the surrounding space by shifting gaze downwards under the eyepieces of the night-vision goggles.

Note – If the RH side monocular of the night-vision goggles fails to be set to the position at which the sighting line of the pilot’s eye passes through its center, the position of the RH side monocular shall be corrected by moving the night-vision goggles upwards or downwards, right or left relative to the helmet. To do so, the carriages of helmet mount

(26)should be shifted by the adjustment of screws (16) utilizing the screwdriver provided (Ref. Fig. 6.6). On completion of the corrective actions, perform the operations described in this step once again.

6.2.19Carry out the operations prescribed by Step 6.2.8 of this Manual to finally adjust the interpupilary distance.

Make sure that the full field of view of the night-vision goggles is provided for both eyes.

6.2.20Adjust the eyepieces to the appropriate dioptric sighting by turning rings (17) (Ref. Fig. 6.5) of the eyepieces until a sharp structural image of the screens on the image-intensifier tubes is attained.

6.2.21Evaluate the operational status of the night-vision goggles by checking the image quality (resolving power). For this purpose, take a test pattern, from the single set of spare parts and arrange it at a distance of an outstretched hand away from the lenses ((750±16) mm). The settings of the night-vision goggles are considered to be normal if the test pattern lines are clearly visible and the check text is readable. Both monoculars should operate without flashes and twinkling.

CAUTION: THE SERVICEABILITY CHECK OF THE NIGHT- VISION GOGGLES SHALL BE ACCOMPLISHED IN THE PRESENCE OF LIGHT WITH THE LENSES COVERED BY THE SAFETY CAPS.

6.2.22De-energize the night-vision goggles (Ref. Step 6.2.9 of this

Manual).

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