Lead-lag pump control is commonly done with two pumps, in what is known as, a duplex-pump station. Since the backup pump keeps things moving, problems will sometimes go unnoticed until both pumps are down. However, it has the unintended consequence of masking problems. Second, it boosts reliability since there is always a backup pump in the event that one fails. First, it balances the pumps' run time to reduce maintenance. Hour meters track the total run time for each pump and then displays that information to the lift station operator. An alternator switches the pumps' roles to evenly dole out assignments. A lag pump now becomes the lead and vice versa.Ī pump controller reads inputs from float switches or continuous level sensors to trigger the pumps to turn on and off. When the pumps move enough liquid, they shut off and then alternate roles. The definition of lead-lag pump control is simple: one pump acts as the 'lead pump', and will be the only pump operating until the water level, or demand, gets high enough for the 'lag pump(s)' to engage. Lift stations use a basic concept called lead-lag pump control. No matter how big the pump station (duplex, triplex, or quadplex, etc.), our flexible I/O devices can improve your control system and give access to more control at lower budgets.
Lead-lag pump control can be facilitated with pump alternating logic, run time data logging, and remote alarms that notify operators of fault conditions. With one or two I/O modules, ControlByWeb allows you to do all of the above at the cost of hundreds, not thousands. Our industrial I/O controllers and data acquisition modules are used for: Whether the task is basic lead-lag duplex pump control, or a more complex monitoring and control scenario, ControlByWeb I/O devices and level sensors provide consistent performance you can count on. Pump control is the heartbeat of many industrial processes, and this couldn't be more true for lift stations. In order to provide us safe and sanitary conditions, wastewater systems depend heavily on reliable lift station operation including pump control.
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