Poor quality image. There is noise or ghost
images of previous scenes or objects
Possible
cause
Manual
calibration
has
been
performed
with
the
lens
cover
open
.
Solution
Check
the
Calibration
Mode
,
close
the
lens
cover
and
calibrate
the
device
.
Black screen after calibration
Solution
If
the
image
does
not
clear
after
calibration
,
you
need
to
recalibrate
.
When the device is turned on, the
calibration frequency is at rst higher, then
decreases (if the automatic calibration
mode is enabled)
Possible
cause
After
turning
on
the
device
,
it
takes
some
time
for
the
sensor
temperature
to
stabilize
.
This
is
normal
and
is
not
a
defect
.
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