Multi-Aerator Linkage Control by DO

One dissolved-oxygen sensor can drive more than one aerator - and in most ponds it should. Linking several aerators to a single DO setpoint, staged by a controller, is how you keep oxygen stable without burning every machine full time. This guide covers the staging strategy, rotation, storage coordination and failover.

Why stage instead of all-on

Running all aerators at once is simple but wasteful and stresses the supply. Staging means the controller starts the first aerator when DO drops, adds the next only if DO keeps falling, and removes machines as DO recovers. One sensor, several actuators, one goal: hold the setpoint at the lowest total power.

Rotation avoids overloading one unit

Continuous first-machine operation wears one aerator while others idle. A linkage controller can rotate which unit leads, or share runtime across the bank, so wear spreads evenly. This also means a single machine failure does not leave the pond with zero aeration.

Coordinating with the storage discharge curve

On a DC48V system, aeration is fed from storage during outages and peak tariff. Linkage logic can align aeration bursts with available stored energy - run harder when storage is full, ease off as it depletes - so the bank survives the night without grid power. TAYKEE's TK-R12 twelve-channel controller stages aerators in groups for exactly this.

Failover when the sensor fails

If the DO sensor drifts or drops out, blind staging risks either stall or full blast. A safe fallback holds the last valid schedule or switches to a timed safe mode and raises an alarm, so the pond is never left unattended. The controller logs the fault for service.

FAQ

Can one sensor control all aerators?

Yes. A controller stages multiple aerators from one DO setpoint, adding or removing units as the reading moves.

What if the sensor fails?

The system alerts and falls back to a scheduled safe mode instead of running blind.