Installation and First Start-Up
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7.5.2
Alignment to Magnetic Ring
To ensure that the active sensor surface is correctly positioned to the magnetic ring, the sensor center (viewed
from the front) must be aligned to the center of the magnetic ring. A lateral offset of ± 0.5 mm is permitted.
Seen laterally, the center of the active sensor area (see figure below) must be aligned to the center of the mag-
netic ring. This is achieved by positioning the outer edge of the sensor front (as shown in the figure) with a dis-
tance of 20.5 mm to the magnetic ring center. The permitted cross offset is ± 0.1 mm.
The reading distance between sensor and magnetic ring should be selected over the entire circumference of the
ring so that the sensor does not touch the ring and at the same time does not exceed a value of 0.6 mm.
Figure 8: Alignment Sensor - Magnetic Ring
NOTE:
When mounting the sensor, it must also be ensured that the mounting tolerances
described in section
7.5.3 are observed.
For notes on bonding the magnetic ring to the shaft, see section
Reading
distance
max. 0.6 mm
Lateral offset
± 0.25 mm
Sensor area
Sensor area
Cross offset
± 0.1 mm
Markings for the mounting direction:
The arrow on the sensor housing and the
side of the ring with the groove show the
correct mounting direction.
Note: The arrow points to the positive
counting direction.
20,5
Magnet ring center
Sensor center =
Magnet ring center
Summary of Contents for FMAX2 Series
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