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5. Rotate the magnet holder so that the magnet axis is vertical when the valve is in the
closed position (see Figure 8). Table 2 shows the general guidelines for travel sensor
alignment. Review the table prior to installing the SVI3 on a rotary valve actuator for
proper alignment of the magnet.
Table 2: Travel Sensor Alignment
Rotary
Mounting
System
Stroke Direction
Magnet
Orientation
Valve
Position
Sensor Counts
Rotary
<60° Rotation
Clockwise or
counter clockwise
rotation
(0°)
Closed (0%)
0 +/- 1000
>60° Rotation
Clockwise with
increasing setpoint
(-45°)
Full Open or
Full Closed
-8000 +/-
1500
or
+8000 +/-
1500
>60° Rotation
Counter Clockwise
rotation with
increasing setpoint
(+45°)
Full Open or
Full Closed
-8000 +/-
1500
or
+8000 +/-
1500
General Rule
for other con-
figurations
Any amount of rota
-
tion Clockwise or
counterclockwise
(0°)
50%
Travel
(Mid-Stroke)
0 +/- 1000
