PESSL INSTRUMENTS SOIL MOISTURE SENSOR PI54-D
The PI54-D soil moisture sensor has a larger volume of influence. It determines volumetric water content (VWC) by measuring the dielectric constant of the soil using capacitance technology and soil temperature. It is 10 cm long and thus measures 1 liter of soil, while high frequency minimizes salinity and textural effects which makes PI54-D accurate in most soils.
|SENSOR||PESSL INSTRUMENTS SOIL MOISTURE SENSOR PI54-D|
|Volumetric water content (VWC)||Range: 0−0.57 m3/m3 (0%−57% VWC)
Resolution: 0.0008 m³/m³ (0.08% VWC) in mineral soils from 0−0.50 m³/m³ (0%−50% VWC)
Accuracy: With standard calibration equation, 0.03 m³/m³ (3% VWC) typical in mineral soils that have solution electrical conductivity <10 dS/m
NOTE: With soil-specific calibration, ±0.02 m³/m³ ( ±2% VWC) is typical in any soil.
|Dimensions||16.0 cm (6.3 in) length; 3.3 cm (1.3 in) width; 0.8 cm (0.3 in) height|
|Prong length||10 cm (3.94 in)|
|Operating temperature range||-40 to 50 °C|
|Cable length||5 m, 10 m|
|Supply voltage (VIN to GND)||Minimum: 3.6 VDC at 12 mA
Maximum: 15 VDC at 20 mA
|Measurement duration||Maximum 10 ms|
|Output||Analog and digital|