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Four Things You Need to Know About
Compressed Air Dew Point Sampling
Sampling is needed when direct measurement of the air is undesirable or is simply not feasible.
To get a representative sample of the process gas and avoid potential sources of error
caused by incorrect sampling practices, the following aspects should be considered.
  • Changing the pressure of the gas changes the dew point
  • To avoid condensation the dew point must
    be below the ambient temperature in the
    sampling line
  • A leak-tight sampling system construction is
    essential
  • Sampling in still air should be avoided,
    however low air flow is okay


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For more information on dew point in compressed air
www.vaisala.com/compressedair


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