orientation.
The total battery charge
is less than 2.0 V.
Install fresh batteries.
Oxidized contact points in the
battery compartment due to
“leaky” batteries or contact
points becoming exposed to
a chemically reactive solution.
Clean the battery compartment,
focusing on the contact points.
The red reticle is blurred
and can not be focused
with the eyepiece.
The eyepiece is not adjusted
correctly.
Adjust the eyepiece according
to the instructions in the
“OPERATING THE
SENTINEL” section.
With a crisp reticle image,
the image of the target
at least 30m away
is blurred.
The eyepiece is not adjusted
correctly.
Adjust the eyepiece according
to the instructions in the
“OPERATING THE
SENTINEL” section.
Dust and moisture are covering
the
outside optical surfaces.
Clean the lens surfaces with a
soft cotton tissue or cloth.
With a crisp reticle image,
the image of the target
at least 30m away
is blurred.
Condensation collects on the
inside of the objective and the
eyepiece lenses, or is on the
optical surfaces of the
electronic-
optical converter, and may be
caused by the scope fogging
due to a rapid change in
temperature; for example, when
the scope is brought from a
cold into a warm environment.
Let the unit dry by leaving it in
a warm environment for 4
hours.
Distinct black dots or
specks
on the screen while the
image is focused.
The dots are cosmetic
blemishes resulting from IIT
production processes and do
not interfere with the reliability
or performance of the scope;
the size of the dots are
specified in the technical
requirements for IIT's and the
scope itself.
No need to take corrective
action
or return the scope.
The scope or the IR do
not turn off via the
“ON/OFF”
switch on the scope.
The scope was activated by
remote control.
Turn off the scope and the IR
by using the remote control.
The displacement of
the reticle while shooting.
The scope is not mounted
securely.
Check that the scope is firmly
attached to the mount and
make sure
that the same type and caliber
bullets are being used as when
the scope was initially sighted
in; if the scope was sighted in