SS2L / SS2R Series
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7.1.7 Standard Installation
① Supply air directly to the actuator, adjust the air filter regulator and set air when the valve
reaches to 50% stroke.
② Install the feedback pin at around 30% higher point of the stroke indicated on the feedback
lever than the required stroke of the control valve and fix with a screw tightly. For example,
Control valve stroke
Stroke indicated on feedback lever
15mm
20mm
20mm
25mm
30mm
40mm
③ Install the feedback lever horizontally at 50% stroke position.
④ If the feedback lever is not installed horizontally, move the mounting bracket up and down
little by little so that it can be positioned horizontally.
⑤ Fix the mounting bracket with screws (M8).
⑥ Connect air lines between the SS2L positioner and the actuator and supply air to the
positioner and perform auto-calibration by pushing Mode button for 5 seconds.
⑦ The operating angle from 0% to 100% stroke should be within the range of ±30°. In case of
the over-range of 30°, move the valve stem pin to left or right and make the SS2L positioner
stay within the operating angle of ±30°.
Make sure that the SS2L positioner works within the operating range of ±30°. See the
below pictures. Otherwise, the error message of ‘MONT’ appears on LCD and the auto-
calibration process fails. Take action as advised in the above ⑦ and get the SS2L
positioner feedback lever positioned horizontally at 12mA (50%).