43
The interrupter timer enables pulsed
“stop/start” operation by the actuator
as a response to local and remote
control commands.
This effectively increases the valve
stroke time and can be adjusted to
prevent hydraulic shock (water hammer)
and flow surges in pipelines. This is
effective for spring-return and double-
acting units without accumulators to
slow stroke time(s).
When enabled, the interrupter timer
operates in both local and remote
control.
To enable the Interrupter Timer press
the
+
or
-
keys to toggle between
[OF]
and
[On]
PRESS THE
KEY.
The displayed option will flash (stored)
indicating that it has been set.
When the timer option is enabled an
additional series of settings can be
accessed by pressing the
k
key.
NOTE:
If the timer option is not
available pressing the
k
key will not
access setting.
Press the
k
key to display interrupter
timer set-up screens.
The default for timer direction is
[CL]
,
timer operation will
start in closing
and
stop in opening
– pulsing
operation around the close position.
If pulsing operation is required to stop
in closing and start in opening – around
the open position, use the
+
or
-
key.
The display will change to
[OP]
Opening
.
PRESS THE
KEY.
The displayed option will flash (stored)
indicating that it has been set.
NOTE:
Instructions
[JC]
and
[JO]
are
for timer operation around the Closed
position. For timing around the Open
position, read stop for start
[JC]
and
start for stop
[JO]
.
Using the
+
or
-
key select the position
for the
TIMER TO START WHEN THE
VALVE IS CLOSING.
[
] [
]
Closed
= valve closed
[00]
to
[99]
= percentage open
[
]
Open
= valve open
PRESS THE
KEY.
The displayed option will flash (stored)
indicating that it has been set.
If the timing is not required in the
closing stroke select
[JC]
to
[
] [
]
valve
closed position.
9.8
Option
Interrupter Timer
OJ
Interrupter Timer
Enabled/Disabled
Jd
Interrupter Timer
Direction
JC
Int. Timer
Disabled
Timer Start
Closing
Timer Start
Position:
25%
Position in Valve
Closing Stroke for
Timer to Start
