Circuit checks swamp cooler water
EDN - Design Ideas / A "swamp cooler" is an easy
way to obtain effective air conditioning,
especially in hot and dry climates, if a water
source is readily available. Although most units
are very reliable, the storage-reservoir control
usually uses a single level-detector component.
Failure of this component can lead to serious
Water-Level Sensor Uses
Electronic Design - Ideas for Design / A
low-voltage electronic circuit that senses upper
and lower water levels is often used for alarms
and sump-pump activation. Since an electronic
sensor has no moving mechanical parts, it
eliminates problems with corrosion and wear and
tear. The. . .