320
Proximity Sensors,
Magnetic Field Sensors
1
.3
Proximity Sensors,
Magnetic Field Sensors,
Sensors
1
.3.1
Proximity Sensors,
Magnetic Field Sensors,
Accessories
1
.3.2
Proximity Sensors,
Capacitive Sensors,
cylindrical
1
.2.1
Proximity Sensors,
Capacitive Sensors,
rectangular types
1
.2.2
Germany: +49 621 776-4411
Consider the General Notes on the Information in the Pepperl+Fuchs Product Catalogs
Pepperl+Fuchs Group
fa-info@de.pepperl-fuchs.com
USA: +1 330 486 0001
fa-info@us.pepperl-fuchs.com
Singapore: +65 6779 9091
fa-info@sg.pepperl-fuchs.com
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Magnetic "Penetrating Sensors" for Hydrau-
lic Cylinders
The MB-F32 magnetic field sensor has a unique special feature. The
sensor enables one of the pistons to be detected through the wall of a
hydraulic cylinder. Once the piston passes over the sensor, the sensor
generates a switching signal.This special function means that the sensor
can be used to determine the position of the piston and also to count the
piston strokes.
Functional description of magnetic penetrating sensors
The MB-F32 sensor reacts sensitively to magnetic fields. It requires a
magnetic field change in order to change its switching state. In the exam-
ple below [Fig. 7], the magnetic pole shoe of the piston induces a partial
magnetic field in the steel cylinder wall. The sensor switches once the
partial magnetic field passes over it.
Mounting conditions of magnetic penetrating sensors
The MB-F32 magnetic field sensor is positioned externally on the steel
cylinder wall and secured using a tightening strap. To create a functional
system, a special pole shoe must be mounted to the piston inside the hy-
draulic cylinder.The shape and geometric dimensions of the pole shoe as
well as the size and number of magnets depends on the configuration of
the respective cylinder piston system. The specialists at Pepperl+Fuchs
can help you design your magnet system.
Cross section through a hydraulic cylinder with view of the cylinder and
pole shoe
Electrical Output
A2
4-
wire, DC, PNP, antivalent
E2
3-
wire, DC, PNP, NO
1
N, N1
NAMUR, NO
Connection Elements
V1
M12 x 1 device connector for DC proximity switches
V3
M8 device connector for DC proximity switches
geeignet)
MB 60 - 12 G M 50 - E2 - V1
Cylindrical
usable
threaded length
(
mm)
M
Magnetic
J
Initiator
B
Basis line
C
Comfort line
Operating range
35
mm or 60 mm
Diameter in mm
Rectangular type
F32, F12
M
Metal
G
Threading
Type code, magnetic field sensors
Proximity Sensors
