If the device is installed in places that are subject to sudden changes in temperature,
the appropriate precautions must be taken in order to prevent the formation of
condensation on the lenses, which could have an adverse effect on monitoring.
POSITION
The position of the VE Emitter and the VR Receiver must prevent access to the danger zone
from above, below and from the sides, unless at least one of the optical beams has been
intercepted. Some useful information regarding the correct position of the barrier is shown in
the figure below.
Incorrect positioning of barrier
Correct positioning of barrier
Figure 2
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