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Rev 02 05/04/05
Stroke Rate Calculation
You may calculate stroke rate based on one, two or three stroke cycles. Since we are not interested in
MPH/KPH, we will disregard those indicators.
Following the instructions in the “Enter Distance” section, please enter the following values for their
respective stroke cycles:
One (1) stroke cycle . . . please enter 0.017
Two (2) stroke cycles . . . please enter 0.034
Three (3) stroke cycles . . . please enter 0.050
To measure stroke rate, simply START the timer by pressing “A” at the beginning of the cycle and STOP
the timer by pressing “A” again at the completion of the cycle. The number displayed in the upper row of
the display is the Stroke Cycle Rate per Minute.
Take as many readings as necessary. The Average and Fastest rates can be displayed by pressing “F”.
OPERATING THE SPEED TIMER
MEMORY RECALL DIRECTION
Select between ascending “UP” or descending “DN” memory recall direction by pressing “D” while the
Speed Timer is in the reset position.
The recall direction cannot be selected while the Speed Timer is running or not in the reset position.
(1) For Single Lap Events: Press “A” to start. “RUN” indicator appears. Press “A” again to stop the
timer. “STOP” indicator appears. The speed will appear in the right side of the upper row of the
display and the time will appear in the lower row of the display.
Press “B” to reset to all zeros.
(2) For Multiple Lap Events: Press “A to start, “RUN” indicator appears. Press “B” to take Lap readings.
Lap Time will appear in the lower row of the display, Lap Speed in the upper row and Lap Number in
the Lap Counter. Continue to press “B” to take as many lap readings as necessary. The SC-554 will
record up to 999 laps.
Memory Recall in ascending
orde
r
Lap Speed for lap 47 is
150.369 m
p
h
Lap Counter:
Previous Lap is #47
Time is running
Lap Time for lap 47 is 39.91
seconds
The Lap Counter will increase by one (1), each time a Lap reading is taken.
The previous Lap Time will remain frozen in the lower row for 15 seconds, at which time it will
automatically release to the current running lap time. Or, you can manually release the time by pressing
“C”.