2TLC172287M0201 Rev B 7 www.abb.com/jokabsafety
2015-09-17
2.2 Resolution
The resolution of the AOPD is the minimum dimension that an opaque object must have in order to interrupt at least
one of the beams that constitute the detection zone.
Which resolution to choose depends on the part of the body to be protected:
The resolution R is calculated using the following formula:
R = I + d
where:
I Distance between the centers of two adjacent optics.
d Diameter of the lens.
Figure 1 – Resolution
Therefore, the resolution depends only on the geometrical characteristics of the lenses, diameter and distance
between centers, and is independent of any environmental and operating conditions of the AOPD.
See paragraph 12 – “Model overview” for the resolution of each model.
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