Baker Hughes Masoneilan SVIII AP, Руководство по установке и обслуживанию

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Masoneilan SVI II AP Installation and Maintenance Manual =
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Performing a Visual Inspection
You must remove the positioner from the bracket to visually inspect the magnet orientation.
For rotary valves, such as a Camflex, or for actuators with rotation of less than 60°, the
magnet assembly must be aligned as shown in Figure 28 on page 61.
For rotary valves, or for actuators with rotations greater than 60°, the magnet assembly must
be aligned as shown in Figure 29 on page 61.
NOTE
For a reciprocating valve, it is not necessary to remove the
positioner to visually inspect the magnet setting and linkage of a
reciprocating valve.
For reciprocating valves the adjustable link turnbuckle must be parallel to the valve stem. To
ensure linearity in positioning verify that the hole in the lever aligns with the indicating hole in
the bracket when the valve is in the closed position. Check that the bracket is mounted on the
correct holes. (See Figure 31 on page 62 for details).
Figure 28 Magnet Orientation for Rotary Valves with Valve Closed
Figure 29 Magnet Orientation for 90° Valve Rotation with De-energized Actuator
Magnet
Axis
with
Valve
Closed
Magnet
Axis
with
Valve Closed
Increasing Signal = CCW Rotation
45
°