Armasight NAMPVS700133DB1 PVS7 GEN 3 Bravo Night vision goggles - Manual (Page 28)

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NOTE:
The sharpest image can only be viewed when the objective lens and both eyepieces are properly
focused. The objective lens focus adjustment is used to focus on objects at varying distances.
The diopter adjustment rings are used to focus your eyesight (without glasses) on the image
intensifier screen. These adjustments operate independently and must be made separately.
8. Fold the right eyecup over the eyepiece with your right thumb or forefinger to obstruct the view
through the right eyepiece. Rotate the left diopter adjustment ring until you observe the clearest
possible view through the image intensifier screen.
9. Fold the left eyecup over the eyepiece with your left thumb or forefinger to obstruct the view through
the left eyepiece. Rotate the right diopter adjustment ring until you observe the clearest possible
view through the image intensifier screen.
10. Adjust the eye relief distance by pressing the socket release button (See Figure 3-1) and sliding the
PVS-7 fore or aft until you can observe the full field of view. Readjust the diopter rings for the sharp-
est, clearest image.
NOTE:
Any changes to maximize eye relief will require readjustment of the diopter rings.
11. While viewing an object with the device, adjust the objective lens focus (Figure 2-1) until the image
becomes sharp and clear.
B. Helmet-mounted Operation. Perform the following procedures for helmet-mounted operation.
1. Verify that the batteries are installed per paragraph 3.3.1, B.
2. Put the helmet mount on per the instructions in paragraph 3.3.1. M.
3. Place the PVS-7 in the socket of the helmet mount (See Figure 3-7). To set your eye relief focus, de-
press the side buttons and carefully move the goggles fore or aft until the eyecups are comfortably
sealed around the eyes. Readjust the helmet straps as required for vertical adjustment.
4. Turn the power switch ON. Adjust the tilt by using the tilt adjustment lock knob (Figure 3-1) until you
reach a comfortable viewing angle.
5. Adjust the interpupillary distance (Figure 3-1) by sliding the eyepieces together or apart so that each
eye can observe the entire field of view at the same time. The eyepieces adjust independently. If
necessary, readjust the eye relief.
NOTE:
The sharpest image will only be observed if 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 eyesight (with or without glasses) through
the image intensifier screen. These adjustments operate independently and must be made
separately.
6. Fold the right eyecup over the eyepiece with your right thumb or forefinger to obstruct the view
through the right eyepiece. Rotate the left diopter adjustment ring until you observe the clearest
view possible through the image intensifier screen.
7. Fold the left eyecup over the eyepiece with your left thumb or forefinger to obstruct the view through
the left eyepiece. Rotate the right diopter adjustment ring until you observe the clearest view pos-
sible through the image intensifier screen.
8. To adjust the eye relief distance, press the socket release button (see Figures 3-1) and slide the PVS-7
fore or aft until you are able to observe the full field of view. Readjust the diopter rings for the clear-
est image.