เอวีร่อน TIMER PNC-12N
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 ofthe 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 adjusted 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.)