Electro-Pneumatic Positioners YT-1000L Series
- 11 -
(7) If connection bar does not point at 50% point, then adjust bracket or feedback
link bar position. Failure to position at 50% would lower the linearity of the
positioner. <Figure 6>
<Figure 6>
(8) Check valve stroke. The stroke numbers are indicated on the feedback lever.
Position connection bar at the number on the feedback lever according to the
valve stroke. <Figure 7> To adjust, move the bracket or connection bar.
Stroke 30mm
Stroke 70mm
<Figure 7>
Note
After instaling YT-1000L, operate the valve
from 0% to 100% stroke by using air filter
regulator on the actuator. Both of 0%
and 100%, the feedback lever should not
touch the lever stopper, which is located
on the backside of YT-1000L. <Figure 8>
If the feedback lever touches the lever
stopper,
YT-1000L
should
be
installed
further away from the center of the yoke.
<Figure 8>
(9) After the proper installation, tighten all of the bolts on the bracket, the
feedback lever, and the connection bar.
