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4.1.2
Soil (Substrate) Sensor
The
soil (substrate) Sensor
displays the Temperature, Volumetric Water Content and Pore Water
Electrical Conductivity measurement values.
Under the “
Sensors
” menu it is possible to select the calibration of the VWC and EC (pore water)
calculation method, by selecting
Topp, Soilless, Mineral Soil
or
Rockwool
. Should you require to modify the
calibration curve, change the required calibration values. If any of the preset calibration values are changed,
the method type will be change to “
Custom
”.
The calibration formula is expressed as a polynomial:
VWC = a + b*
ε
+ c*
ε
2
+ d*
ε
3
+ e*
ε
4
+ f*
ε
5
+ g*
ε
0.5
,
where
ε
is the apparent dielectric permittivity.
Summary of Contents for PRO
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