The CS640 is a TDR probe intended for use with our TDR100 Time Domain Reflectometer. It is recommended for very high conductivity soils or laboratory column applications.
The CS640 consists of three pointed rods mounted within an encapsulated rubber head, allowing use in rugged environments. The probes act as a wave guide. Impedance along the rods varies with the dielectric constant of the surrounding soil. Because the dielectric constant of soil primarily depends on the amount of water present, soil volumetric water content can be inferred from the reflected measurements. Soil bulk electrical conductivity is determined from the attenuation of the applied pulse.
Features
- 3-rod design
- Recommended for very high conductivity soils, when soil bulk conductivity is less than 5 dS/m
- RG58 cable with user-specified length
- Maximum recommended cable length is 15 m
Specifications
- Rod Length: 7.5 cm
