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LBK System Series| Instruction manual v1.2 SET 2021 |SAF-UM-LBKBus-en-v1.2|© 2020-2021 Inxpect SpA
5. Sensor position
Dimensions of the 50° field of view
Top view
Side view
5.2.4 Sensitivity
The system sensitivity level can be defined for the access detection function as well as the restart prevention
function. The sensitivity defines the ability of the system to prevent undesired alarms. Only for the access
detection function, it also defines the reaction times to motion detection: with high sensitivity the system is more
prone to undesired alarms, but detection is faster.
For example, it is recommended to set a lower level of sensitivity for the access detection function if people or
objects are in transit at the perimeters of the dangerous area (e.g. forklifts or trucks).
5.3 Dangerous area calculation
5.3.1 Introduction
The dangerous area of the machinery to which LBK System Series is applied must be calculated as indicated in
standards ISO 13855:2010. For LBK System Series the fundamental factors for calculation are height (h) and
inclination (α) of the sensor, see "Sensor position" on page52.
5.3.2 Sensor height ≤ 1 m
To calculate the depth of the dangerous area (S) for sensors with installation heights less than or equal to 1 m,
use the following formula:
Where:
Variable Description Value
Measurement
unit
K Maximum dangerous area access speed 1600 mm/s
T Total system stopping time (LBK System
Series + machinery)
0.1 + Machinery stopping time (calculated
in accordance with ISO 13855:2010
standard)
s
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