Manual

30
3.3 ASSEMBLY AND PREPARATION FOR USE
3.3.1. UNPACKING
The following steps must be accomplished prior to each mission where the MUNVM is used.
CAUTION:
Relieve air pressure inside shipping and storage case by pressing in on opposite sides of the
case before releasing latches.
(1) Release the latch securing top of shipping and storage case and open.
(2) Check contents for completeness (see Figure 2-1).
(3) Remove carrying case. Open carrying case (Figure 2-3), remove MUNVM, and check contents for
completeness.
(4) Inspect the monocular for obvious evidence of damage to optical surfaces, body, eyecup, eyeguard,
power switch, battery cap, etc. Ensure that all optical surfaces are clean and ready for use. Clean with
lens paper.
3.3.2. INSTALLATION OF BATTERY
CAUTION:
To protect the image intensier, keep the objective lens cap on when the monocular is not in
use or when using the monocular in daylight conditions.
The MUNVM operates with one AA battery. Battery is not supplied with the MUNVM and must be ob-
tained separately.
At operating temperatures below -20°C (-4°F), Alkaline batteries are not recommended, as operating
life will be severely reduced. Lithium-iron disulde L91 1.5V AA batteries should be used below -20°C
(-4°F).
TABLE 32. ESTIMATED BATTERY LIFE
BATTERY TYPE TEMPERATURE NEGLIGIBLE
IR SOURCE USAGE
IR SOURCE
USAGE 10% OF THE TIME
AA Alkaline 21°C(70°F) 60 Hrs 55 Hrs
AA Lithium L91 21°C(70°F) 70 Hrs 65 Hrs
AA Alkaline -20°C(-4°F) 12 Hrs 10 Hrs
AA Lithium L91 -20°C(-4°F) 60 Hrs 55 Hrs
CAUTION:
Make certain the power switch is in the OFF position before installing the battery.
Install the AA battery into PVS14 or 6015 as follows.
(1) Unscrew the battery cap.
(2) Observe polarity, as indicated on the side of the battery compartment and insert the battery.