How do I apply a custom water content calibration to my sensor data?

Factory calibration curves are provided for mineral soils, potting soils, perlite, and rockwool. Many of these factory calibrations have been verified by independent researchers and published in peer-reviewed journal articles.  If a factory calibration is not available, or you would like better accuracy, you can provide a custom calibration to the soil moisture sensor data collected.

You can provide a custom calibration for each sensor independantly.  To use a custom calibration in DataTrac 3:

1. Click the Configure button in the tool bar of DataTrac.
2. Under Sensors and Measurements list, expand the port containing the sensor for which you would like to input a custom calibration.
3. Click on Volumetric Water Content under that port.
4. Select User Defined from the  Approximate Soil Media dropdown menu.
5. Enter the coefficients for your custom calibration in the spaces provided.