| Accuracy |
Apparent Dielectric Permittivity (εa): ± 0.5 from εa of 2 to 10, ± 2.5 from εa of 10 to 50
Soil Volumetric Water Content (VWC):
- Using standard calibration equation: ± 0.03 m3/m3 (± 3% VWC) typical in mineral soils that have solution electrical conductivity < 10 dS/m
- Using soil specific calibration, ± 0.02 m3/m3 (± 2% VWC) in any soil
|
| Resolution |
εa: 0.1 from εa of 1 to 30, 0.2 from εa of 30 to 50
VWC: 0.0008 m3/m3 (0.08% VWC) in mineral soils from 0 to 0.50 m3/m3 (0-50% VWC) |
| Range |
εa: 1 (air) to 50
VWC: Calibration dependant; up to 0 - 57% VWC with polynomial equation |
| Measurement Time |
10 ms (milliseconds) |
| Sensor Type |
Capacitance (frequency domain) |
| Output |
300 - 1250 mV, independent of excitation voltage |
| Operating Environment |
Survival Temperature: -40 - 50°C
Operating Temperature: 0 - 50°C |
| Power requirements |
3 VDC @ 12 mA to 15 VDC @ 15 mA |
| Cable Length |
5 m standard; custom cable lengths available
|
| Cable Connector Types |
3.5mm "stereo" plug, or stripped and tinned lead wires (3) |
| Sensor Dimensions |
14.5 cm x 3.3 cm x 0.7 cm |
| Data Logger Compatibility (not exclusive) |
Decagon: Em50 series loggers, ProCheck, ECH2O Check
Campbell Scientific: CR10X, CR21X, CR23X, CR850, CR1000, CR3000, etc.
Other: Any data acquisition system capable of 3-15 VDC excitation and single ended voltage measurement at 12 bit or better resolution. |
| Warranty |
One year, parts and labor |
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