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• Fix the positioner along with the mounting bracket at the centre of the control valve
depending on the stroke of the control valve.
• Insert the shaft in the slot in the scale and lock it using the locking spring as shown in fig 3.
• Make sure that the scale is horizontal when calibrating the positioner.
• Secure the bolts firmly and proceed for calibration.
Figure 3: Detailed view of positioner with globe valve.
Note:
Adjust the height of the positioner on the cast iron yoke until the lever is horizontal (based
on a visual check) at half stroke of the valve.