Services Available | |
---|---|
Repair | Yes |
Calibration | No |
Free Support | Yes |
The SDMX50 is available in a very limited supply. The SDMX50 will be replaced by theSDM8X50.
The SDMX50 is one of three 50 ohm, coaxial, 8:1 multiplexers that can be used in a TDR100-based system. It consists of a surge-protected multiplexer circuit board mounted in a 10" x 12" x 5" environmental enclosure. The enclosure's backplate provides a strain-relief point for the coaxial cables. Cable ties and desiccant are included.
Outside Dimensions | 40.4 x 29.2 x 17.5 cm (15.9 x 11.5 x 6.9 in.) with mounts |
Inside Dimensions | 25.4 x 30.4 x 12.7 cm (10 x 12 x 5 in.) for enclosure |
Weight | 4.4 kg (9.8 lb) |
Power Requirements |
|
Input Power | 12 Vdc |
Quiescent Current Drain | < 1 mA |
Current Drain during Switching | ~ 90 mA (all multiplexers of the same level switch simultaneously for less than 1 s) |
Number of FAQs related toSDMX50:6
Expand AllCollapse All
These three multiplexers all use the same relay board, but the housing differs. The multiplexers are described side-by-side on page 2 of thisbrochure.
The most popular model is the SDMX50SP, followed by the SDMX50.
PC-TDRis a free download in the Downloads section ofthe PC-TDR web page..
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).
We've updated our privacy policy.Learn More