Armasight NAMPVS700133DB1 PVS7 GEN 3 Bravo Night vision goggles - Manual (Page 11)

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2
DESCRIPTION AND DATA
2.1 SYSTEM DESCRIPTION
The PVS-7 is a hand-held, head-mounted or helmet-mounted night vision system that enables mobil-
ity, driving, weapon firing, short-range surveillance, map reading, vehicle maintenance and administer-
ing first aid during operation in both moonlight and starlight. Each unit allows for vertical adjustment
(using the head straps), fore-and-aft adjustment, objective lens focus, eyepiece focus and eye relief
distance adjustment. The goggles are also equipped with an infrared (IR) light-emitting diode (or il-
luminator) and a low battery LED indicator. The goggles automatically shut off when disconnected
from the head mount or helmet mount, or when flipped up on the helmet mount. A bright light cutoff
feature shuts off power to the goggles when they are exposed to excessive levels of light for more than
70 (±30) seconds.
The PVS-7 includes the items shown in Figure 2-1. See Table 2-1, Table 2-2 and Figure 2-1 for Standard
and Optional Equipment.
A. Goggles Assembly. The goggles assembly consists of four primary sub-assemblies; a simple objec-
tive lens, a wired housing assembly, an image intensifier tube (IIT) assembly (not shown), and a rear
cover assembly. The wired housing assembly contains a built-in battery compartment, attached bat-
tery cap and the RESET/ OFF-ON-IR/ PULL switch.
B. Head mount Assembly. The adjustable, cushioned head mount assembly secures the goggles
to the operator’s head, providing hands-free operation and allowing the use of weapons, protective
masks and other devices. The thin brow pad (intended for use with larger heads) comes attached to
the head mount. Thicker, or medium, brow pads (intended for use with smaller heads) are stored in the
carrying case.
C. Carrying Case. The canvas carrying case is provided for transportation and protection of the PVS-7,
head mount assembly, batteries and accessories. Two slide keepers are provided for belt attachment.
A carrying case strap, which can be attached to the two D-rings on the back of the carrying case, is also
included. The case has a zipper closure.
D. Demist Shields. The two demist shields are used to prevent the eyepiece lenses from becoming
fogged.
E. Sacrificial Window. A replaceable sacrificial window is supplied to protect the objective lens during
operation in adverse conditions.
F. Neck Cord. This additional authorized item can be attached to the compass or 3X magnifier lens and
worn by the operator to prevent them from dropping or losing these items.
I. Optional Equipment. Optional equipment includes compass, helmet mount assembly, 3x and 5x
Mil-Spec Magnifier Lenses, Long Range Infrared illuminator, Mil-Standard Hard Shipping/Storage Case
and an IR spot/ flood lens.
The PVS-7 may sometimes be supplied in hard shipping and storage case. Batteries may also be stored
in this case.