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There are different types of Sequential Controller:
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Solid State Sequential Controller/Sequential Timer:
The pilot valves used on dust collector system can be operated using Sequential Controller.
Light emitting diodes (LEDs) are used to provide visual indication of which pilot valve is being
charged as well as it gives “Power On” indication. The series of sequenced steps is
customizable from 2 through 10.To adjust the length of time between valves being de-
energized (Off time / Pulse Frequency) and the length of time that the valve is energized ( On
time / Pulse Duration) controls are provided. All logic functions and timings are controlled by
Silicon semiconductor components
To Start and stop the Controller Two independent methods are provided. They are as follows:
1) The first method will consequently stop the sequence and reset the Controller to the initial
valve position whenever A. C. power is detached and then again reconnected.
2) The second strategy is by a remote control contact associated with the terminals provided.
At the point when the remote contact is opened, the execution stops. When the remote
contact is released, the execution proceeds from the previous.
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Micro Controller Based Bag Filter Timer:
The Dust Collector Controllers of this sequence can be programmed to suit customer’s actual
necessities which are micro controller based units.
The two basic modes of operation are: a) Program Mode b) Manual Mode