SICK GRTB18V Instrucciones De Uso página 23

6.2 Check the application conditions
8021184.1HT2/2023-02-13 | SICK
Subject to change without notice
Figure 2: Alignment
Check the application conditions: Adjust the sensing range and distance to the object
or background and the remission capability of the object according to the correspond‐
ing diagram [see figure 3] (x = sensing range, y = monitored area between the set
sensing range and background suppression as a % of the sensing range (object remis‐
sion/background remission)). Remission: 6% = black 1, 18% = gray 2, 90% = white 3
(referring to standard white as per DIN 5033). We recommend making the adjustments
using an object with a low remission.
The minimum distance (= y) for background suppression can be determined from
diagram [ see figure 3 1] as follows:
Example: x = 150 mm, y = 20 => 20% of 150 mm = 30 mm. That is, the background is
suppressed at a distance of > 180 mm from the sensor.
Minimum distance between set sensing range and
background (white, 90%) in % of sensing range
y
25
20
6%/90%
1
15
18%/90%
10
2
5
0
0 50 100 150
(1.97) (13.94) (5.91)
1
Sensing range on black, 6 % remission
2
Sensing range on gray, 18 % remission
3
Sensing range on white, 90 % remission
Figure 3: Sensing range of up to 300 mm
Use figure 5 and see table 2, page 8
fails to behave in accordance with the table, check the application conditions,
"Troubleshooting table", page
Example:
Sensing range on black, 6%
x = 100 mm, y = (10% of 100 mm) =10 mm
90%/90%
3
x
200 250 300
(7.87) (9.84) (11.81)
Distance in mm (inch)
to check the function. If the switching output
25.
O P E R A T I N G I N S T R U C T I O N S | GRTB18(S)V
OPERATING INSTRUCTIONS
white background (90%)
x y
see
en
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