Are there any datalogger programming changes that must be made to a program when using a long Synchronous Device for Measurement (SDM) cable with a CSAT3?

With long cable lengths, monitor the SDM data collected from the CSAT3. If the CSAT3 diagnostic word is 61441 or NAN, there are SDM communications errors. If the SDM bit period is increased, SDM communications should be restored. Use the SDMSpeed() instruction to change the SDM bit period. Use the following values for the listed dataloggers:

  • CR3000: 50
  • CR800, CR850, or CR1000: 100
  • CR5000: 90

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