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Description
(standard model)
Only
pneumatically the device controls
the pulse valves for in the
case of explosion proof condition
or no
electric
condition. The 54 series pulse
valves are connected to the
pressure chamber of the controller
by
small
bore airlines. The wiper arm
assembly of the controller is
operated by a pneumatic ratchet
drive.
It
pauses between valve connections
for a preset time which is adjustable
by the user.
The
pulse time is also user adjustable
by means of a throttle valve
accessed after removal of the
bottom
casing.
During the pulse time the wiper
arm passes beneath a valve connection
port and vents the pilot
line
to that particular valve. The
valve opens and remains open
until the wiper arm moves on
to the next
position.
The pilot air is vented through
the port marked "R"
underneath the manual override
knob, which
is
marked to show the exact position
of the wiper arm.
The
interval is adjusted by a pneumatic
timer through the front hole
of the unit and the switching
time ad-
justed
as described above.
Fluid
(control section): Fitered air-compressed
air supply via conditioning
unit with a 5 to 10 ㎛ with
air
filter,
without oiler (for unpurified
compressed air we recommend
an additional 50 to 75 ㎛ primary
filter.)
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