ASAE/ASABE S633 (R2024)

This standard defines a procedure to test a soil moisture sensor and interface device's response to changes in soil moisture conditions in a media that simulates soil. The test procedure covers soil water content (volumetric) and soil water tension (matric potential) sensors. The standard provides a method, using two different media, two water salinities, and three different water depletion levels, to determine if the sensor and associated interface device will enable/disable an irrigation event at preset or selected soil water values.