Problem
Possible cause(s)
Corrective action
The batteries have been
installed incorrectly.
Reinstall the batteries with the
correct polarity orientation.
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 riflescope
does not turn on.
The riflescope turns off
as the IR is turned on.
Total battery power is too low. Install fresh batteries.
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 G2+” section.
Dust and moisture are covering
the outside optical surfaces.
Clean the lens surfaces with a
soft cotton tissue or cloth.
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.
Let the unit dry by leaving it in
a warm environment for 4
hours.
Total battery charge is less than
2.0V.
Install fresh batteries.
With a crisp reticle image,
the image of the target
at least 30m away
is blurred.
Luminance level in the
observation area is too high.
Slide the protective cap (with a
pinhole) on the objective lens
or enter a dark environment.
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 during the
summer, and is now being used
in the winter, or vice versa, a
small displacement of the
aiming point is possible.
