Thermo Fisher Scientific Micro-Tech 9101/9201 Reference Manual, Rev J A-11
7. Press the Count button each time a reference mark passes.
8. Continue to press the Count button when a mark passes, until the
following two conditions are met.
The belt has made at least three complete revolutions.
The total running time of the test exceeds six minutes.
9. After the last revolution has been counted, press the Done button.
time a mark passes.
1 sec 0 rev
time a mark passes.
120 sec 1 rev
Length = 600.0 ft
Time = 360 sec