Troubleshooting - Dedal-NV Tracker-T2.380 Operation Manual

8 TROUBLESHOOTING

Malfunction
description
The Device does not work
The target does not appear
in focus
Condensation accumulates
on the parts
Dots on the screen
 While the Device is operating, presence of one or several darker or lighter segments (spots, stripes) in the field of view is
allowed. Mostly often, these segments appear if there is a large temperature gradient between the place, where the observer
is located, and the outside environment. For example, this may happen when you observe the terrain from a warm room
through an open window. In some cases, these segments can be removed by using the CALIBRATION function.
Tracker-T2.380/Tracker-T4.642. Operation Manual
Check whether the batteries are installed properly. Check the charge of the batteries. Replace them
if they are weak.
Rotate the eyepieces (7) (Fig.1) and adjust the interpupillary distance (see Fig. 2) until you get a
clear image of the screen for each eye. Then achieve the best-focused image of the object by rotating
the objective lens knob (10). If the image cannot be focused as described in this manual, clean the
lenses. They could be moisturized or dusty.
It is recommended to use periodically a special protective anti-misting liquid in order to avoid
misting of the objective lens in cold conditions. This liquid is included in the auxiliary delivery set.
Production technology of the display allows a small amount of dark and bright dots in the image.
These dots may also appear after some usage. Most of the appeared dots can be removed by using
the function DEAD PIXELS REMOVAL (see 6.5.2).
Troubleshooting solution
A T T E N T I O N !
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Table 2