Spirax Sarco SP500 - Page 27

IM-P343-35 CTLS Issue 5
27
SP500 Electropneumatic Smart Positioner
5.3.2
Adjust the magnet orientation as illustrated in Figures 43 and 44 and tighten the bolt to fix the
magnet into position. There should be a distance of between 5 and 14 mm between the magnet and
the positioner.
Refer to Figure 43 for actuator with clockwise rotation.
Refer to Figure 44 for actuator with anti-clockwise rotation.
In fact, in this way the magnet movements will always be comprised in the sector between the
directions C and D which delimit the operating area of the Hall sensor.
Fig. 43
View from the bottom
of the positioner -
Magnet orientation for
clockwise actuator.
Fig. 44
View from bottom
of the positioner -
Magnet orientation
for anti-clockwise
actuator.
D
B
A
C
15°
90°
120°
15°
D
B
A
C
15°
90°
120°
15°