What is the difference between TDLS Calibration and Validation?

Video FAQ

Questions

• Why is no field calibration needed?
  • The benefits of TDLS measurements: Drift is negligible and does not affect analyzer performance.

• Why online validation?
  • Ensure proper analyzer functionality
  • Must for analyzers without reference cells
  • Must for low concentration applications

• Frequency of validation checks?
  • Depends on the application.

• Is validation an accuracy check?
  • No, it is a functionality check. 

• Purpose of validation checks?
  • Analyzer response
  • Peak position check

• What are the validation steps?
  • Before process snapshot is taken
  • Validation gas introduction and after stabilization a during validation snapshot is taken
  • The non-process area is then purged and an after validation snapshot is taken.
  • The analyzer will display the pass/fail results

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