Sensor Position; Basic Concepts; Sensor Field Of View - Inxpect Value Line Instruction Manual

7. Sensor position

Contents
This section includes the following topics:
7.1 Basic concepts
7.2 Sensor field of view
7.3 Separation distance calculation
7.4 Calculation of position for sensor height ≤ 1 m
7.5 Calculation of position for sensor height > 1 m
7.6 Outdoor installations

7.1 Basic concepts

7.1.1 Determining factors
The sensor installation height and inclination should be decided together with the detection distances in order to
have optimal coverage of the dangerous area.
7.1.2 Sensor installation height
The installation height (h) is the distance between the center of the sensor and the ground or reference plane of
the sensor.
7.1.3 Sensor inclination
Sensor inclination is the rotation of the sensor around its x-axis. Inclination is defined as the angle between a line
perpendicular to the sensor and a line parallel to the ground. Three examples are presented as follows:
sensor tilted upwards: α positive
l
straight sensor: α = 0
l
sensor tilted downwards: α negative
l

7.2 Sensor field of view

7.2.1 Types of field of view
The field of view of the sensor depends on its model-type:
Model Type Protective function
S188A -X1 Access detection
S188A -X2 Access detection
S188A -X3 Restart prevention
38
Horizontal angular coverage
110°
50°
110°
Inxpect Value Line | Instruction manual v1.0 FEB 2025 | Inxpect VL-IM-7_00375_en_v1.0 | © 2025 Inxpect SpA
Vertical angular coverage
30°
15°
30°
38
38
40
46
50
51