ATN PVS-7 Operator's Manual page 48

1. ensure that the batteries are installed per paragraph 2-6, B.
2. turn the reSet/0FF-on-Ir/pUll switch to on.
3. 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.
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 without
glasses) on the image intensifier screen. These adjustments oper-
ate independently and must be made separately.
4. Hold the pVS-7 with your left hand and fold the left eyecup over
the eyepiece with your left thumb or forefinger to obstruct view
through the left eyepiece. rotate the right diopter adjustment ring
for the clearest view on the image intensifier screen.
5. Hold the pVS-7 with your right hand and fold the right eyecup
over the eyepiece with your right thumb or forefinger to obstruct
view through the right eyepiece. rotate the left diopter adjustment
ring for the clearest view on the image intensifier screen.
6. readjust the objective lens assembly while observing an object
until the sharpest image is obtained.
D. Operation with Compass Assembly
NOTE
The objective lens focus can be fine tuned after installation, but in
order to obtain an accurate reading, the compass must be vertical.
(The compass image must be level).
1. Install per paragraph 2-6, F.
2. If necessary, to more clearly view your distant object, adjust the
objective focus slightly by gripping the compass and turning clock-
wise.
3. to view the compass through the pVS-7, grip the compass with
index finger on top and thumb on illumination button on the bottom
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