| Outstanding
performance for demanding applications.
What do you gain when you choose the ThetaProbe? |
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| Feature | Description | Advantage |
DC
in, DC out
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Requires
5 - 15V dc at 20mA. Provides 0 - 1V dc output.
Compatible with ThetaMeter Readout Unit and most data loggers
|
|
|
100 MHz signal |
With
frequencies below ~30 MHz, salinity effects can be a problem. With frequencies
above ~250 MHz, measuring bound-water in clay soils is a problem.
100 MHz is an excellent compromise |
|
| Standing
Wave Ratio
|
Simple, elegant circuit responds precisely to the dielectric properties of soil. |
|
|
4-Rod arrangement
|
3
rods are arranged in a circle around a central rod. This creates a cylindrical
zone of measurement 60mm long x 26.5mm diameter
|
|
|
Replaceable rods
|
Made
of 3mm diameter, resilient, 304 austenitic stainless steel, with sharpened
ends.
Rods have threaded ends that screw into ThetaProbe body.
|
|
| Cylindrical
|
The
ThetaProbe casing is a 40mm diameter tube, with threaded end.
Extension tubes (500 and 1000 mm) screw onto this thread. |
|
| Compact size
|
Case is robust and sealed
to IP68 standard.
Overall length of probe is 207mm |
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Delta-T support
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Thousands of ThetaProbes are in use all over the world. The latest ML2x includes improvements suggested by customer feedback |
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Delta-T's new catalogue: covering: Soil Water Potential: Tensiometer ; Equitensiometer Pore water conductivity: Sigmaprobe theory Evapotranspiration: (Software and weather stations) Data loggers and readout units ; Application examples ; |
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A sowacs feature page |
Back to Delta-T Feature Page Index |
© Bruce Metelerkamp www.sowacs.com/feature/deltat/ml2X-table.html last update : 14 August 1999 |
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