Seiko 7L22 Manual - Page 12

Ex. 1

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English To measure the hourly rate of operation 1 Use the stopwatch to measure the time required to complete 1 job. 2 Tachymeter scale indicated by STOPWATCH second hand gives the average number of jobs accomplished per hour. 80 75 90 7 Ex. 1 65 0 60 TACHYMETER 500 300 250 400 STOPWATCH second hand: 20 seconds 200 180 16 0 140 100 120 Tachymeter scale: "180" "180" (tachymeter scale figure) x 1 job = 180 jobs/hour Ex. 2: If 15 jobs are completed in 20 seconds: "180" (tachymeter scale figure) x 15 jobs = 2700 jobs/hour 12

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To measure the hourly rate of operation
Use the stopwatch to
measure the time required to
complete 1 job.
Tachymeter scale indicated
by STOPWATCH second
hand gives the average
number of jobs accomplished
per hour.
STOPWATCH
second hand:
20 seconds
Tachymeter scale: “180”
“180” (tachymeter scale figure) x 1 job
= 180 jobs/hour
Ex. 1
1
2
Ex. 2: If 15 jobs are completed in 20 seconds:
“180” (tachymeter scale figure) x 15 jobs = 2700 jobs/hour