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General| Measurement Method | Time Domain Reflectometry (TDR) |
|---|---|
| Measurement Range | 0 to 100% volumetric water content |
| Resolution | 0.1% VWC |
| Probe Length Options | 12 cm |
| Power | 12 V |
Caution against electrostatic discharge damage to the TDR100 and probes.
Lists the items included with the TDR100 unit.
Lists the items included with the ENCTDR100 enclosure.
Details current demand for TDR100 and SDMX50 in various modes.
Lists performance metrics like output impedance, timing resolution, and range.
Details TDR100 compliance with EMC standards and electrostatic discharge.
Step-by-step instructions for installing the PCTDR software from CD-ROM.
Instructions for connecting the computer to the TDR100 using the RS-232 cable.
Explains the relationship between apparent and actual distances and Vp.
Overview of File, Settings, and Options menu functions within PCTDR.
Explains cable propagation velocity (Vp) and its effect on waveform display.
Describes datalogger instructions for TDR100 and software used.
Details SDM addressing scheme for TDR100 and multiplexer levels.
Explains how TDR probes function as sensors and their measurement principles.
Details the TDR100 instruction syntax and parameters for CR800/1000 series.
Detailed explanation of parameters for Instruction 119.
Analyzes how cable length affects TDR measurements and introduces error.
Explains how soil ionic conduction affects signal attenuation and accuracy.
Details how waveform features are used to identify probe start and end points.
How to adjust algorithm parameters for challenging measurement conditions.
Example program for CR1000 to measure analog, VWC, and capture TDR waveforms.
Examples for CR10X/CR23X to measure analog, VWC, and EC.
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