AUTOMATIONS

1. Check levels of Storage – Feed Water, Product Water, and Backwash and when levels are low, raise alarm signals & hooters                                                       and stop the operationss. Resume the operations on correcting the error and switch off error                                                             signals, alarms and hooters.

2. Check Levels of Chemicals in Dosing Tank and when level is low, raise alarm signal & hooter and stop the operations.                                                                Resume the operations on correcting the error and switch off error signals, alarm, and hooters.

3. Check Low Pressure and High Pressure Settings when Feed and Backwash Pumps and when the limits are exceeded ,raise                                                        alarm signals & hooters and stop the operations . Resume the operation on correcting thr error                                                          and switch off error signals , alarms and hooters

4. Execute the Auto Cycle at the set sequence and timing

5. Auto Start / Stop the Feed Pump, Dosing Pump etc..

                                                  (i)  Start Feed Pump and set of automatic valves and run upward. Flush Cycle for set period of time.

                                                        During this cycle, allow air scouring.

                                                 (ii)  Start Filtration Cycle keeping Feed Pump and set of valves On and Run upward Filtration Cycle                                                           for set period of time. Stop Feed Pump and close all valves.

                                                (iii)  Start Backwash Pump and set of valves and run upward Backwash Cycle for set of period of                                                                time. Stop Backwash Pump and close all valves.

                                                (iv)   Repeat the above cycle in Downward direction.

                                                 (v)   Repeat the cycle.

6. Display the Operational Sequence, Error and Alarms on the MMI LCD and also the time of operation, sequence in progress.

7. Stop the operations when Overload Current occurs. Resume the operations on correcting the error and switch off error                                                         signals, alarms and hooters.

8. Stop the Time of Operation and Frequency of each operations