Larger Volume of Influence
Looking for a soil moisture sensor with a larger volume of
influence? Use the 10HS to accurately measure water content in
virtually any soil with minimal salinity and textural effects.
Characterise Spatial Variability
At 10 cm long, the 10HS has a 1 litre area of influence. Imagine
the probe running the length of a one litre bottle-the bottle
represents the approximate area of influence. The 10HS will
estimate the volumetric water content of the soil within that
volume.
Engineered for Accuracy
The 10HS determines volumetric water content (VWC ) by measuring
the dielectric constant of the soil using capacitance/frequency
domain technology. The sensor uses a 70 MHz frequency, which
minimizes salinity and textural effects, making the 10HS accurate
in almost any soil. Factory calibrations can be used in most
typical soils with a saturation extract EC of 10 dS/m
Integrate with CSI Data Loggers
The 10HS's analogue signal means no-hassle integration with
systems run by other data loggers (like Campbell Scientific). An
on-board voltage regulator allows Decagon factory calibrations to
be used with any excitation voltage between 3 and 15 V.
Use with the Topp Equation
The 10HS's output can be set to dielectric for use with the Topp
Equation or other dielectric to volumetric water content conversion
equations.
| Specifications |
| Accuracy |
Apparent dielectric permittivity (Ea): ±0.5 from
Ea of 2 to 10, ±2.5 from Ea of 10 to 50
VWC: Using standard calibration equation: ±0.03
m3/m3 (±3% VWC) typical in mineral soils that
have solution electrical conductivity <10dS/m
Using soil specific calibration, ±0.02
(±2% VWC) in any soil |
| Resolution |
Ea: 0.1 from Ea of 1 to 30, 0.2 from
Ea 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 |
Ea: 1 (air) to 50
VWC: calibration dependant; up to 0-57% VWC with polynomial
equation |
| Measurement Time |
10mS |
| Sensor Type |
Frequency domain |
| Output |
Voltage correlated with VWC, independent of excitation
voltage |
| Operating Environment |
-40°C - 50°C |
| Power |
3 VDC @ 12mA to 15 VDC @ 15mA |
| Cable Length |
5m, custom cable lengths available
|
| Cable Connector Types |
3.5mm stereo jack plug or stripped and tinned lead wires
(3) |
| Sensor Dimensions |
14.5cm x 3.3cm x 0.7cm |
| Data Logger Compatibility (not exclusive) |
Decagon: Em50, Em50R, Em50G
Campbell Scientific: CR10X, 21X, 23X, 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 labour |
Non UK/Ireland Customers
Non UK/Ireland Customers, please contact Decagon Devices
at: www.decagon.com
Reasons to pick the 10HS:
- If you're focused on water content only and are interested in a
large volume of inluence.
Click here
for the Soil Sensors Comparison Page.
Download the Instruction booklet:
