Campbell Scientific TDR100 TDR100 Time Domain Reflectometry Systems - Page 7
Introduction - manual
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TDR100 1. Introduction This document presents operating instructions for the TDR100 and associated equipment and discusses time domain reflectometry (TDR) principles. Section 3 (Getting Started with TDR100 using PCTDR) describes a simple start-up configuration to quickly and easily display TDR probe waveforms using PCTDR. See the "TDR Probes" manual for detailed information about TDR probes available from Campbell Scientific. Manuals can be downloaded from our website: www.campbellsci.com/manuals. The TDR100 can be controlled either by a computer using Windows software PCTDR or by using TDR100 instruction with a CR800, CR850, CR1000, or CR3000 datalogger or Instruction 119 with a CR10X or CR23X datalogger. PCTDR is used when display of waveform information is needed for setup and troubleshooting but does not support automated measurements at prescribed time intervals. The TDR100 and SDMX50 multiplexers can be configured for automatic control using the dataloggers. A single TDR probe can be connected directly to the TDR100 or multiple probes connected via coaxial multiplexer units (SDMX50). Warning The TDR100 is sensitive to electrostatic discharge damage. Avoid touching the inner part of the panel BNC connector or the center rod of TDR probes connected to the TDR100. 1.1 TDR100 Packing List The following are included with a TDR100. 1. PCTDR software and instruction manual on compact disk. 2. A 6 foot long, 9-conductor cable for connection between the serial port of a computer and the RS-232 port of the TDR100. 3. Short 5-conductor cables for SDM connection between (a) datalogger and TDR100 and between (b) TDR100 and an SDMX50 coaxial multiplexer. 1.2 ENCTDR100 Packing List The following are included with an ENCTDR100. 1. Enclosure Supply Kit; desiccant packs, humidity indicator, cable ties, putty and mounting hardware. 2. ENCTDR100 Enclosure Ground Wire Kit. 3. TDR100/SDMX50 Coaxial Interconnect Cable. 4. TDR100/SDMX50 and TDR100/Datalogger SDM 5-Conductor Cable. 5. Enclosure ENC16/18 with two 1.7 inch diameter cable penetration ports. 6. Terminals for external deep cycle battery. 1