UK
Info card
Inductive sensors
4
3
Sensing range
(referred to the standard target)
S
n
+
10
%
+
10
%
-
10
%
-
10
%
S
r
S
u
min
S
u
max
S
a
Nominal sensing range S
n
= characteristic value of the unit
Real sensing range S
r
= individual deviation at room temperature between 90 % and 110 % of S
n
Useful sensing range su
= switch point drift between 90 % (S
u
min
=
S
a
) and 110 % (S
u
max
) of S
r
Reliable sensing range
= operating distance S
a:
= reliably switched between 0 % and 81 % of S
n
Safe switch-off distance
= S
u
max
+ max. hysteresis = 143 % of S
n
Correction factors
V2A
100
S
r
[%]
50
0
Al
Ms
Cu
*
*
Standard target
Values → data sheet
Exception K1 units:
Same sensing range for all
Influence of the target size
100
S
r
[%]
50
0
0,2
0,5
1,0
x axis: ratio actual target / standard target
Lateral approach and ranges
(valid for structural steel, e.g. S235JR)
0
S
n
a
d
d
6Q
[6
Q
1
G
①
Typical switch-on curve (for slow approach)
②
Typical switch-off curve (for slow approach)
③
Poor repeatability
④
Good repeatability
Good repeatability of the switch point means: The closer the
target is positioned to the sensing face, the better.
General recommendation:
a = 10 % of the nominal sensing range
①
Distance to the background
②
Recommended target distance
③
Recommended degree of coverage of the sensing
face
④
Recommended target size
Tips on flush and non-flush mounting in metal
Installation instructions cylindrical designs
Flush:
Non-flush:
2 x Sn
