46
GE Oil & Gas
ValVue SVI II AP Quick Start
Inspecting Actuator, Linkages, or Rotary Adapter
Verify that the mounting has not been damaged in shipment for a pre-mounted
SVI II AP, physically inspect the actuator, linkage. Record the following
information for the configuration checkout:
1. Valve Air to Open (ATO) or Air to Close (ATC)
2. Actuator pressure rating
3. Actuator bench range
4. Inherent trim characteristic of the control valve; linear, equal percentage, or
other.
NOTE
Refer to the valve data sheet or model number of control
valve.
Verifying Mounting and Linkage Adjustment
Inspect the mounting and make any needed adjustments before running the
positioner and checking the digital configuration.
Checking the Magnet
There are two methods of checking the SVI II AP magnet:
Perform a visual inspection
Use ValVue to check the magnet
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
25.
For rotary valves with rotations greater than 60°, the magnet assembly must be
aligned as shown in Figure
26 on page
47.
NOTE
For a reciprocating globe valve, it is not necessary to remove
the positioner from the bracket. Details are given below.
Summary of Contents for SVI II AP-2
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