Manual

OPERATING MANUAL PSEN op4F/H-A series
1003067-EN-02
17
This minimum distance depends on the following factors:
• The distance between the transmitter (TX) and receiver (RX)
• The actual opening angle of the light curtain; in particular:
when Type 4 light curtain = 5° (α = ± 2.5°)
The illustration in Fig. 10 shows the minimum distance from the reflective surface (D
sr
) based
on the operating range:
Fig. 10
Formula for calculating D
sr
:
D
sr
(m)
=
0.15
With operating ranges < than 3 m
D
sr
(m)
=
0.5 x operating range (m) x
tg 2
α
With operating ranges ≥ than 3 m
2.2.2 Distances between identical light curtains
Should it be necessary to install several protective devices in adjacent areas, care must be
taken to ensure that the transmitter on one of the pairs does not dangerously interfere with
the receiver on another pair.
The interfering transmitter, TX B, must be installed outside the minimum distance D
do
from
the TX A - RX A axis of the transmitter/receiver pair.
Fig. 11 – Distance between devices of the same type
This minimum distance D
do
depends on the following factors:
• The distance between the transmitter (TX A) and receiver (RX A);
• The actual opening angle of the light curtain.
Light
curtain
Type 4
Operating range
Distance from
reflective surface