DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of
non-observance.
Body parts to be protected may not be detected under coarse resolution.
b
Use a resolution of 70 mm or finer for hazardous area protection.
b
For hazardous area protection with a resolution of 70 mm: make sure that it is
possible to detect a human leg.
b
For hazardous area protection with a resolution of 70 mm: mount the safety laser
scanner at a height of at least 300 mm (height of the scan plane).
b
If it is not possible to mount the safety laser scanner at a height of at least
300 mm, use a finer resolution see "Calculating required resolution", page 40.
Calculating required resolution
If t
he height of the protective field (scan plane) is predefined and is less than 300 mm,
you can calculate the required resolution using the following formula:
d
r
= H
D
/15 + 50 mm
where:
•
d
r
= coarsest permissible resolution of the safety laser scanner in millimeters
(mm)
•
H
D
= height of the protective field above the floor in millimeters (mm)
b
The safety laser scanner’s resolution can be set to the predefined value d. If the
result d
r
does not match any of these values, choose a finer resolution (d ≤ d
r
).
4.3.6.4 Distance from walls
Overview
T
he availability may be impaired if the protective field stretches as far as a wall or a
different object. So, plan to have a space between the protective field and the object. A
distance of the TZ value is recommended to ensure availability. (TZ = tolerance range of
the safety laser scanner, see "Data sheet", page 178.)
Figure 30: Distance of the protective field from the wall
4 P
ROJECT PLANNING
40
O P E R A T I N G I N S T R U C T I O N S | microScan3 Pro I/O 8025424/1ELL/2022-01-21 | SICK
Subject to change without notice
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