Eijkelkamp 11.41.11.SA e + SOIL MCT sensor/logger
• Eijkelkamp 11.41.11.SA e + SOIL MCT sensor/logger measurement of Moisture content, electrical Conductivity and Temperature in soils or comparable substrates.
• Storage of the measurements.
• Comparison of actual values to preset alarm values (when using telemetry).
• Transfer of the measurements optically to the user directly or via the e-SENSE telemetry system.
• Allows for user definable sampling and transfer intervals, which also can be set remotely.
Details• The measuring principle of the sensor is based on the Frequency Domain Method (FD), described by Wageningen University & Research Centre (van Balendonck and Hillhorst), at a frequency of 20 MHz, from which the system derives permittivity, conductivity and temperature.
• The sensor contains a dedicated chip developed by the Institute of Agricultural and Environmental Engineering in Wageningen, the Netherlands and amicrocontroller data logger with embedded software that will allow for a range of applications, e.g. the sensor can derive from its data, such as volumetric water content and bulk electrical conductivity (ECb).
• The internal software can automatically compensate the conductivity for the measured temperature.
• From a range of different soil types the moisture content will be accurately measurable, based on general calculation models (e.g. TOPP 2001 model) and local calibration data.
• Soil specific calibration is possible with a 2-point calibration which can be set up by the user.