Armasight NSMSIRIUS1GMDA1 Sirius GEN 3 Ghost MG Multi-Purpose Night Vision Monocular - Manual (Page 27)

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3.2 CONTROLS AND INDICATORS
3.2.1 CONTROLS AND INDICATORS
The Sirius controls and indicators are defined in Table 3-1.
The Sirius controls are shown in Figure 3-14.
CAUTION:
DO NOT over-adjust the controls by forcing them past their stopping points.
C
D
E
FIGURE 3-14. SIRIUS CONTROLS
B
A
TABLE 3-1. SIRIUS CONTROLS AND INDICATORS
CONTROL/INDICATOR FUNCTION
Turn-pull Function Switch
(Figure 3-14, A) OFF position — the unit is off.
ON position — the unit is on (IT powered).
Turn the unit on by turning the switch CCW from OFF to ON.
IR position — the unit is on, and the IR illuminator is activated.
Activate the IR illuminator by pulling it out and turning the switch
CW from ON to the IR position.
Eyepiece Ring
(Figure 3-14, B) Adjusts the unit diopter. The total dioptric range is covered in a 1/2
ring revolution.
Focusing Ring
(Figure 3-14, C) Focuses the lens. Adjusts for sharpest view of the scene. The total
focus range is covered in a 1/3 ring revolution.
Gain Control Knob*
(Figure 3-14, D) Adjusts for image contrast.