7
COMMISSIONING
20
Infra red light: Align the sender with the receiver. Select the position so that the infrared
light (not visible) hits the receiver. Use the signal strength light bar on the rear of the sen‐
sor to determine the correct alignment. See
clear view of the receiver, with no object in the path of the beam. You must ensure that the
optical openings (front screen) of the sensors are completely clear.
Optimized alignment can be achieved and verified by using the signal strength light bar
located on the back cover of the sensor. The LEDs on the light bar will illuminate corre‐
sponding to the strength of signal received by the sensor. When no or only red LEDs are
illuminated, the sensor is receiving no or too little signal to switch the output. The first yel‐
low LED will illuminate at the minimum switching threshold and the green LEDs will con‐
tinue to illuminate as the received signal increases [see
Figure 6: Alignment
2
Sensing range
Observe the application conditions: Adjust the distance between the sender and the
receiver according to the corresponding diagram [see
operating reserve).
If several through-beam photoelectric sensors which are installed next to one another are
to be used, we recommend swapping the sender/receiver arrangement at every second
through-beam photoelectric sensor and ensuring that there is sufficient distance between
the through-beam photoelectric sensors. By doing this, mutual interference can be pre‐
vented [see
figure
1].
Table 12: Operating reserve
Operating reserve
1,000
100
10
1
0
5
10
(16.40)
(32.81)
Figure 7: HSE18, Redlight
figure 6
and
Operating reserve
1,000
100
10
1
15
20
25
0
(49.21)
(65.62)
(82.02)
Distance in m (feet)
Figure 8: HSE18L, Infrared light
figure
5. The sender must have a
figure
5].
table
12] (x = sensing range, y =
5
10
15
20
(16.40)
(32.81)
(49.21)
(65.62)
Distance in m (feet)
8017854.16K9 | SICK
Subject to change without notice
25
(82.02)