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Installation Orientation
The following figure illustrates a front view of the EM3090 after installation.
Optics
Window Placement
The window should be positioned properly to let the illumination and aiming beams pass through as much
as possible and no reflections back into the engine (reflections can degrade the reading performance).
The window should be mounted close to the front of the engine (parallel). The maximum distance is
measured from the front of the engine housing to the furthest surface of the window. Avoid unwanted
reflections and use thin material for window so as to reach better reading performance. As shown in the
figure below, the distance from the front of the engine housing to the furthest surface of the window
should not exceed 3mm and the distance from the front of the engine housing to the nearest surface of
the window should not exceed 2mm.
If the window is required to be in a tilted position, the above distance requirements should be met and tilt
angle should ensure no reflections back into the lens.
3
Up
≤ 2mm
≤ 3mm
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