Difference between revisions of "Refill control for fresh water"
From aquarium-doc
Jump to navigationJump to search
| (One intermediate revision by the same user not shown) | |||
| Line 8: | Line 8: | ||
The refill control refills fresh water from a separate tank to the aquarium. | 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 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 actuates a [[metering 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]] | |||
Latest revision as of 08:45, 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 metering pump if low water level is indicated.
- The refill control considers potential failure of the water level sensor (stuck at low, stuck at high).
