2TLC172289M0201
Rev C
18
www.abb.com/jokabsafety
2018-04-17
Active and passive units orientation
The two units shall be assembled parallel to each other, and with the markings on active and passive units on the
same side, both up or both down for example.
The configurations shown in Figure 16 must be avoided.
Figure 16
– Incorrect orientation
Use of deviating mirrors
NB: The following precautions must be respected when using the deviating mirrors:
The alignment of the active and passive units can become a very critical operation when deviating mirrors are
used. Even a very small displacement of the mirror is enough to loose alignment. The use of an Orion laser
pointer (available as accessory) is recommended in these conditions.
The minimum installation distance (S) must be respected for each single section of the beams.
The effective operating range decreases by about 15 % by using only one deviating mirror, the percentage
further decreases by using 2 or more mirrors (for more details, refer to the technical specifications of the
mirrors used).
Do not use more than three mirrors for each device.
The presence of dust or dirt on the reflecting surface of the mirror causes a drastic reduction in the range.
