9
CHECKING THE ACCURACY
1.
Place the camera at a distance of 1.0 m (distance from the front side of the NL Sonic Tester to the front
side of the NL Camera). Make sure that the NL Camera is aligned parallel to the NL Sonic Tester.
2.
Align the NL Camera in such a way that the calibrator is exactly within the outline in the middle of the
screen and the IR LED (
2
) is within the circle and it is illuminated at its brightest. This means that the
calibrator and camera are aligned properly.
3
. Observe the
dB indicator bar
on the right side of the screen. The NL Camera accuracy is correct if the reading
is within the green range. If the reading is in the red range, first make sure that the NL Camera and NL Sonic
Tester are set up correctly and that the IR LED is at its brightest. If the device still displays incorrect (red)
readings, please contact your distributor.
