Q&A
When will the controller activate the pump to fill water
When the water level is below the "Low" sensor, the controller will activate the pump to fill water. The controller slowly flashes a blue LED during the refilling.
When will the controller stop the pump refilling water
The controller stops the pump under 3 conditions:
- Water level reaches the "LOW" position and continues until 1 ETF, the good working condition.
- Water level reach up to HIGH sensor position, anti-over-fill mechanism stops the pump.
- Water refilling time reaches up to 6x the extended filling time. Pump stops to avoid dry running, or over-filling.
Why in start-up mode does the water lever reach the "HIGH" sensor, and when normally refilling the water does it stop between the "LOW" and "HIGH"
- In start-up mode, the controller needs to fill the water to the "HIGH" position in order to recongize your aquariums size & calculate the EFT accurately.
- In normal working condition the device fills the water to the "LOW" position and will continue pumping for one extended filling time cycle until the water level reaches above "LOW" but never going above the "HIGH" position. The EFTT will precisely keep the water level between the "LOW" and the "HIGH" sensors.
How does the device calculate the ETF
The ETF is calculated in start-up mode.
- When the water level is BELOW the "LOW" position, EFT is determined by ½ the time it takes to fill from "LOW" to "HIGH"
- When the water level is BETWEEN the "LOW" and "HIGH" positions, EFT is determined by the time it takes to fill from "LOW" to "HIGH"