SLC 210 / SLG 210
5
The recommended Cf factors are shown in the table below:
ENVIRONMENTAL CONDITION
CORRECTION FACTOR Cf
Fog
0.25
Steam
0.50
Dust
0.50
Dense fumes
0.25
+
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.
POSITIONING
The position of the Emitter and the Receiver must prevent access to the danger zone 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
