Millipore M Air T Manual Del Usuario página 18

M Air T Calibration Kit User Guide 13
Determine the theoretical height (at both flow rates):
To determine the float height corresponding to 139.5 L/min (nominal
flow rate corresponding to first speed), take the approximate value
of 139.7 from the flow rate scale table (see Attachment 2).
NOTE: This is the height which should be obtained when calibrating
the M Air T Tester for the first speed.