Condition 2:
Actuator fails in a counter clockwise direction
(Turns clockwise from fail position).
Spring return
Output port 2 is plugged.
Output port 1 is piped to turn the actuator
clockwise.
Double acting
Output port 2 is piped to turn the actuator
counter clockwise
Output port 1 is piped to turn the actuator
clockwise
Semi-circle faces
side with the
conduit entry
Actuator
(in fail position)
Mounting assembly
Conduit entry
Positioner sensor
Triangle faces the
side with the
conduit entry
Actuator
(In fail position)
Mounting assembly
Conduit entry
Positioner sensor
TURNS
COUNTER CLOCKWISE
(From fail position)
TURNS CLOCKWISE
(From Fail Position)
2.2 Mounting remote positioner on a
rotary actuator
Condition 1:
Actuator fails in a clockwise direction
(Turns counter clockwise from fail position).
Spring return
Output port 2 is plugged.
Output port 1 is piped to turn the actuator
counter clockwise.
Double acting
Output port 2 is piped to turn the actuator
clockwise.
Output port 1 is piped to turn the actuator
counter clockwise.
Figure 2-2
* Note
1. Drive insert must be provided with
Keystone actuators for ModMount
installations.
2. Drive insert may need to be disengaged
and rotated 90° to allow for proper
mounting.
* Drive insert
* Drive insert
page 5
AVID SmartCal valve positioner
Installation & operating instructions