Up to 15 m cable length
Visão Geral
The CS630 is used in TDR100- and TDR200-based systems. This probe consists of a Santoprene head, three pointed rods, and a standard RG58 cable. The length of each rod is 15 centimeters, allowing the probe to be used in high electrical conductivity soils (maximum soil bulk electrical conductivity of 3.5 deciSiemens/meter). The RG58 cable is suitable for lengths up to 15 meters (50 ft) as measured from the tips of the probe's rods to the reflectometer. A similar probe, the CS635, is recommended for applications requiring longer cable lengths. The CS630 and CS635 differ only in their cables.
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Descrição Técnica
The CS630 acts as a wave guide. Impedance along the rods varies with the dielectric permittivity of the surrounding soil. Because the dielectric permittivity 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.
Especificações
| Maximum Soil Bulk Electrical Conductivity | 3.5 dS/m |
| Rod Diameter | 0.32 cm (0.125 in.) |
| Rod Length | 15 cm (5.9 in.) |
| Santoprene Head Dimensions | 5.75 x 4.0 x 1.25 cm (2.25 x 1.57 x 0.49 in.) |
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Number of FAQs related to CS630-L: 1
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In applications where TDR probes are used to measure soil water content, the maximum distance from the TDR probe back to the TDR100/TDR200 (even through one or more multiplexers) cannot exceed 15 m (50 ft) when using RG58 coaxial cable; the CS605-L, CS630-L, and CS640-L TDR probes have an RG58 cable. When using low-loss coaxial cable, the distance cannot exceed ≈25 m (80 ft); the CS610-L, CS635-L, and CS645-L TDR probes have a low-loss coaxial cable.
In slope stability and rock mass deformation applications, the maximum coaxial cable length should not exceed ≈1 mile (5,280 ft). The maximum combined length of all SDM cables in the system should not exceed ≈76 m (250 ft).