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B. Helmet Mounted Operation. Perform the following procedures
for helmet mounted operation.
1. Ensure that batteries are installed per paragraph 2-6, B.
2. Don the helmet mount per instructions in paragraph 2-6. M.
3. Place the PVS-7 in the socket of the helmet mount. (See Figure
2-4.) Set your eye relief by depressing the side buttons and care-
fully move the goggles fore or aft until the eyecups comfortably seal
around the eyes. Readjust the helmet straps as required for vertical
adjustment.
4. Turn power switch to ON. Adjust the tilt by using the tilt adjust-
ment lock knob (Figure 2-4) until you obtain a comfortable viewing
angle.
5. Adjust the interpupillary distance (Figure 2-1) by sliding the eye-
pieces together or apart so each eye can observe the entire field
of view at the same time. The eyepieces adjust independently. If
necessary, readjust the eye relief.
Helmet
Mounting
Clip
Tilt
Adjustment
Socket
Release Lever
Figure 2-11. quick Disconnect Helmet Mount Features
NOTE
The sharpest image will be observed only when the objective lens
and both eyepieces are properly focused. The objective focus
adjustment is used to focus on objects at varying distances. The
diopter adjustment rings are used to focus your eyes (with or with-
2-24
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