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.