ATN OTS-15, Operator'S Manual

Page: 30 / 44

3-4
3.2. OPERATING PROCEDURE
3.2.1. TURNING ON
open the objective lens cover. The objective lens cover protects the
monocular from inadvertent exposure to extremely high levels of radi-
ant flux. Never leave the monocular with the objective lens cover off.
To turn the unit on press the button labeled oN/oFF.
After a warm-up time of approximately 3 seconds, video of the ther-
mal scene appears.
NOTE
During the warm-up time, a logo comes into view on the mono-
cular display. Next the thermal image replaces the logo.
NOTE
The image you see will have a yellow tint. The yellow tint provides
better contrast and resolution over black and white images.
Figure 3-3. Switchboard of OTS
3.2.2. FOCUSING
To focus the scope you need to adjust the diopter first. The scope
has an adjustable eyepiece with a range of +2 to -6 diopter. Simply
turn the diopter clockwise until it stops. Then concentrate on any
object and slowly turn the diopter back counter clockwise until the
grain in the image is sharp. Then rotate the eyecup to accommo-
date use over the left or right eye.
You scope has ability to focus either long range or short. Focus the
front lens to rotate it until the image and the grain are both sharp.