The volumeter consists of three numbers, and is read from.    From Wordnik.com.  [LearnHub Activities] Reference

The elder Dr. Gilson developed Pipetman's unique volumeter in 1963 as an improvement to Gilson respirometers.    From Wordnik.com.  [Press Releases] Reference

It is only necessary to change the tip if a different liquid is being sampled or if the volumeter setting is changed.    From Wordnik.com.  [LearnHub Activities] Reference

To obtain maximum accuracy when changing the volumeter setting, follow the recommendations below: decreasing the volume setting, turn the adjustment ring slowly to reach the required setting.    From Wordnik.com.  [LearnHub Activities] Reference