Xylem AT210 SOIL MOISTURE SENSOR User Manual
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Inspection
Your Soil Moisture Sensor was carefully inspected and certified by our Quality
Assurance Team before shipping. If any damage has occurred during shipping, please
notify Global Water Instrumentation, Inc. and file a claim with the carrier involved.
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Description
Global Water’s AT210 is a reliable and accurate sensor which measures the water
saturation of soil. It can be used in a variety of applications, such as:
Bioremediation
Wastewater Reclamation
Landfill Management
Agriculture Monitoring and Irrigation
The Global Water Soil Moisture Sensor utilized Time Domain Reflectometry (TDR) to
accurately measure the water content of soil. What this means for you is that this sensor
is a no hassle, no maintenance, long lasting, probe this is very accurate.
How TDR sensors work is similar to radar. A high frequency signal is pulsed down the
probe. The reflection of this signal is proportional to the dielectric constant of the soil
surrounding the sensor. The dielectric reading from the sensor is then converted to water
saturation and transmits to the monitoring equipment via a 4-20mA signal.
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Specifications
Power Requirements
12 VDC +/- 20% @ 40mA
Output
4-20 mA DC
Power Up Time
1 second from power up