Difference between revisions of "Refill control for fresh water"
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* The refill control actuates a pump if low water level is indicated. | * The refill control actuates a pump if low water level is indicated. | ||
* The refill control considers potential failure of the water level sensor (stuck at low, stuck at high). | * The refill control considers potential failure of the water level sensor (stuck at low, stuck at high). | ||
[[File:WaterLevelSensorInOperation.png|thumb|Water level sensor in operation]] | |||
Revision as of 08:15, 27 March 2022
Motivation
Salt-water aquariums evaporate significant amounts of pure water. The salt contained in the salt-water does not evaporate. If evaporation continues, salinity of the salt-water rises to a level higher than in natural sea-water. Furthermore, cleaning devices like protein skimmers require a nearly constant water-level in the aquarium.
Implementation
The refill control refills fresh water from a separate tank to the aquarium.
- The water level is monitored by means of a water level sensor.
- The refill control actuates a pump if low water level is indicated.
- The refill control considers potential failure of the water level sensor (stuck at low, stuck at high).
