Smart Solenoid Irrigation Controller

Published on by for Measured Irrigation

Smart Solenoid Irrigation Controller

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The Smart Solenoid Irrigation Controller SSIC transforms any non-latching solenoid into a smart irrigation controller. The critical component of the SSIC is a rare earth magnet. Water slowly evaporates from the evaporator until the weight of the water in the evaporator is light enough for the magnet to fall from the high position to the low position and the irrigation starts automatically. Water drips into the evaporator until the weight of the water in the evaporator is heavy enough for the magnet to rise from the low position to the high position and the irrigation stops automatically. The cycle continues indefinitely. It's amazing that such a simple device can do so much:

1. Completely automatic

2. No electricity is needed (no batteries, no solar panels, no computers, and no electronics)

3. You can adjust the water usage by adjusting the control dripper

4. You can adjust the irrigation frequency by changing the evaporator

5. The irrigation frequency and the water usage are directly proportional to the net evaporation rate (that is, evaporation minus rainfall

6. Responds appropriately when there is an unexpected heat wave

7. When it rains, water enters the evaporator and delays the start of the next irrigation

8. Water usage is independent of the water supply pressure

9. Uses much less water without affecting the yield

10. It is incredibly simple and low tech and so there are fewer things to go wrong

11. Provided you have a continuous water supply, you can leave your irrigation application unattended for weeks on end

12. Can be used for any irrigation application that uses a non-latching solenoid valve.

 

For complete information about the Smart Solenoid Irrigation Controller, see Chapter 6 in the attached document "Unpowered Measured Irrigation Training Manual for Smallholders":

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