Related Information - Emerson Bettis Q Series Installation Manual

Installation Guide
DOC.IG.BQC44.1 Rev. 1
8.1.2 Manual Control operation
1 The Manual Control has a "Push & Lock"
function:
- To operate the Manual Control, use a screw
driver, push to activate and release to de-
activate the pilot valves.
- If required turn it 45°, to lock it in position
and keep the actuator in its operated state.
2 In case of a Fail in Last Position configuration
with two manual controls:
- The manual control on the right side (default
location) will pressurize the central air
chamber and cause the actuator to rotate
counter clock wise. For reverse acting Bettis
Q-Series actuators (Assembly code CC) the
actuator will rotate clock wise.
- The manual control on the left side (Location
for 2nd Manual Control) will pressurize the
end cap air chambers and cause the actuator
to rotate clock wise.
For reverse acting Bettis Q-Series actuators
(Assembly code CC) the actuator will rotate
counter clock wise.
- In order to operate one of the manual
control, be sure the opposite manual control
is de-activated and unlocked.
3 It is possible to rotate the screw multiple cycles.
The unit will than toggle every 90° between
"locked" (1) and "unlocked" (0).
8.2 Speed control option
(see figure 8.2).
The Bettis Q-Series can be supplied with a Speed
Control option. One throttle is required for Spring
Return actuators and up to two for Double Acting
actuators.
The speed control throttle controls the air flow
in and out of an air chamber and as such limits
Fig. 8.2 Speed control operation
the speed of the "Opening" and "Closing" stroke
simultaneously.
8.2.1 Mounting Speed Control throttle(s):
1 Remove the plug(s) at the side of the module
and turn in the throttle (1).
2 Spring Return actuators: Use the top entry only.
3 Double acting actuators: Use both bottom and
top entries.
- For standard actuators, the top entry will
throttle the closing stroke.
- For standard actuators, the bottom entry will
throttle the opening stroke.
- For reverse acting actuators, the opposite
strokes will be throttled.
8.2.2 Adjusting Speed Control throttle(s):
1 Remove the nut cap (2).
2 Clockwise rotation of the adjustment screw
reduces the speed.
3 Counter clockwise rotation of the adjustment
screw increases the speed.
4 Replace the nut cap.

9 Related Information

Other documents containing information related to
the Bettis Q-Series Module include:
- Q1.604.10 Bettis Q-Series Control Module
data sheets
- DOC.IOM.Q.E Installation Operation &
Maintenance Manual.
These documents are available, in multiple
languages, for download from
www.emerson.com/bettis
Bettis Q-Series
February 2017
Spring Return:
Top entry only.
Double Acting:
Bottom and/or top
entries.
2 1
15