Instruction
Manual
SE4-Plus
Series
4
1.3. How to choose the device
There are at least three different main characteristics that should
be considered when choosing a safety light curtain:
The resolution
strictly depending on the part of the body to be
protected.
R = 14mm
Finger protection
Type 4
20mm
R
40mm
Hand protection
Type 4
The resolution of the device is the minimum dimension, which an
opaque object must have in order to obscure at least one of the
beams that constitute the sensitive area.
As shown in Fig.1, the resolution only depends on the geometrical
characteristics of the lenses, diameter and distance between
centres, and is independent of any environmental and operating
conditions of the safety light curtain.
Fig. 1
The resolution value is obtained applying the following formula:
R = I + d