Pilz PSEN op4B-S-3-080 - Manual (Page 9)

Operating Manual PSEN op4B Series
5
• Height of protected field: Here it is important to distinguish
between the “Height of the sensing area” and the “Height of the
protected area” (Fig. 2).
- The height of the sensing area is the distance between the
upper limit of the first lens and the lower limit of the last lens.
- The height of the protected area is the effective protected area,
in which an opaque object whose size is greater than or equal to
the resolution of the safety light curtain will safely interrupt the
beam.
Fig. 2
• Safety distance: Great care must be taken when calculating the
distance at which the safety light curtain should be positioned in
relation to the hazardous machinery. (Please see Chapter 2,
“Installation”, for details of how to calculate the safety distance.)