To mesure the hourly
rate of operation
The tachymeter is extremely useful in
calculating factory operation efficien-
cy or machine production amount.
Ex. 1:
Use the stopwatch to mesure the time
required to complete one job.
If it takes 20 second, the stopwatch
second hand indicates “180” on the
tachymeter scale. This means that 180
jobs will be completed in one hour.
180 (Tachymeter scale figure x 1 job =
180 jobs at 20 second position)
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HOW TO USE THE TACHYMETER
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