Technical data

3.3 ASSEMBLY AND PREPARATION FOR USE

3.3.1. UNPACKING

The following steps must be taken prior to each mission in which the MUNVM is used.

CAUTION:

Relieve air pressure from inside the shipping and storage case by compressing opposite sides

of the case before releasing the latches.

(1) Release the latch securing the top of the shipping and storage case and open it.

(2) Verify that all items were shipped (see Figure 2-1).

(3) Open the carrying case (Figure 2-3), remove MUNVM, and inventory the items.

(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. If necessary,

clean with dry lens paper.

3.3.2. INSTALLATION OF THE BATTERY

CAUTION:

To protect the image intensier, keep the objective lens cap securely tted over the lens when

the monocular is not in use or when it is being operated in daylight conditions.

The MUNVM operates with one AA battery. The battery is not supplied with the MUNVM and must be

obtained separately.

At operating temperatures below -20°C (-4°F), Alkaline batteries are not recommended, as the battery

life will be severely reduced. Lithium-iron disulde L91 1.5V AA batteries should be used in conditions

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:

Verify that the device is OFF before installing the battery.

Install the AA battery into PVS14 or 6015 as follows.

(1) Unscrew the battery cap.

(2) Align the polarity markings on the battery with those etched onto the battery compartment.

(3) Replace the battery cap and tighten it.

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