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Precautions

  • Keep Spiropet horizontal during measurement. (If it is not kept still, the vanes cannot revolve evenly, so measurement results will not be correct).
  • Do not cover up the small holes, which lie around the cylinder, with your hands.
  • When used frequently, water drops and saliva will condense inside. Accuracy is lost. Once every 10 measurements remove the lower body and clean inside with a cloth. (It is easily removed by turning clockwise).
  • Spiropet is a precision instrument - handle it carefully.