The starting point for any operation is the NORMAL TIME mode. You may sequence through the modes by pressing “E.”
Three (3) Timing Options
(1) Lap Time Chronograph
(2) Split (accumulated) Time Chronograph, or
(3) Dual Lap/Split Time Chronograph
Each option offers these functions
Battery: Lithium type CR-2025 or equivalent
Press “E,” until NORMAL TIME appears.
Time of day is presented in hours, minutes and seconds (HH:MM SS) in the lower row. Calendar is presented in day, month and date , in the upper row.
Alarm Time Display
While in NORMAL TIME, press “D” to display the alarm time. “AL” will appear in the upper row of the display to indicate the alarm time.
While in NORMAL TIME mode, press and hold “F” for 2-3 seconds. “SET” indicator appears. Alarm hours will begin flashing. Advance alarm hours by pressing or holding “C”. After setting alarm hours, press “E”. Alarm minutes will begin flashing. Advance by pressing or holding “C”.
Repeat the setting process for Seconds>>>>Hours>>>>Minutes>>>>Month>>>>Date>>>>Day of the Week>>>>12/24 Hour Operation>>>>and back to Alarm Hours.
Pressing “F” at any time will automatically exit the setting procedure. “SET” indicator disappears.
Time of Day and Alarm Time will both be presented in the AM/PM or 24 Hour format chosen. “A” or “P” will appear in the AM/PM format.
The alarm can be armed (set to go off) to sound once per day. The alarm symbol ((((·)))) will appear when the alarm is armed.
The hourly chime can be armed to sound one (1) beep at the top of each hour. The chime indicator (A) will appear when the chime is armed.
While you SC-554 is in NORMAL TIME mode, press “C” to arm or disarm your alarm and chime.
The sequence is:
(1) Alarm ON, Chime OFF
(2) Chime ON, Alarm OFF
(3) Alarm ON, Chime ON
(4) Alarm OFF, Chime OFF
When armed, the alarm will sound when the Alarm Time coincides with Time of Day. You may silence the alarm by pressing any pushbutton.
CHRONOGRAPH MODE (Stopwatch)
The SC-554’s chronograph is a digital stopwatch with 1/100 second resolution, which will present timing in any of three (3) different options.
From NORMAL TIME press “E” once to enter the CHRONOGRAPH mode. Chrono indicator “CHR” and all zeros should appear. If the display does not show all zeros by:
If RUN appears, press “A” to STOP and “B” to RESET
If STOP appears, simply press “B” to RESET to all zeros
“LAP” Chrono will display the Interval of time from your previous readings. Each time a reading is taken, the timer begins from zero.
“SPLIT” Chrono will display the Accumulation of time from the start of the event. Each time a reading is taken, the timer shows the Total amount of time accrued.
“LAP/SPLIT” Chrono will display the lap time in the upper row and the split time in the lower row of the display.
Select from the LAP, SPLIT or LAP/SPLIT options by pressing “C”. The appropriate indicator “LAP”, “SPL” or “LAP/SPL” will appear.
Select between ascending (up) or descending (dn) memory recall by pressing “D” while Chrono is in the RESET (all zeros) position. The recall direction can only be selected while the Chrono is in the RESET (all zeros) position. You cannot select between “UP” or “DN” while the time is running, or not reset.
You may access up to the previous 30 readings while the chronograph is running or stopped by pressing “F”. The recall operation will ascend or descend, depending upon the option selected.
Simply press “F” at any time to review previous readings. Recall (“RCL”) indicator appears. Holding “F” down will scroll through the memory recall function.
If “RUN” indicator appears, you may take a reading by pressing “B” or stop the chrono by pressing “A” at any time while using the memory. You may also return to the last previous reading at any time by pressing “C”.
The average and fastest lap times can be displayed at any time by pressing “D”. “AVG” indicator will appear for average lap time, and “MAX” indicator will appear for the fastest lap time.
In the Chrono mode, press “C” until “LAP” indicator appears.
Single Events: Press “A” once to start. Press “A” again to stop. Press “B” to reset to all zeros.
Timing Multiple Laps: Press “A” to start. “RUN” indicator appears, Lap Time appears running in the lower row. Press “B” to take a lap time. The previous lap time will appear in the upper row of the display and current lap time will build up from zero in the bottom row. The SC-554 will take up to 999 lap times. The LAP COUNTER will increase by one (1) each time “B” is pressed to take a lap time.
Press “A” to stop. “STOP” indicator appears. LAP COUNTER will increase by one (1) when timer is stopped. Press “B” once to display total accumulated time of the event. Then press “B” again to reset to all zeros.
For MEMORY RECALL and AVG/MAX operations, please proceed as described above.
In the Chrono mode, press “C” until Split “SPL” indicator appears.
Single Events: Press “A” to start. Press “A” again to stop. Press “B” to reset to all zeros.
Timing Multiple Splits: Press “A” to start. “RUN” indicator appears and time is shown running in the lower row of the display. Press “B” to take split time. The split time appears in the upper row of the display, while the accumulated running time appears in the lower row. The LAP COUNTER will increase by one (1) each time “B” is pressed. The SC-554 will take up to 999 split times.
Press “A” to stop. “STOP” indicator appears. LAP COUNTER will increase by one (1) when the timer is stopped. Press “B” once to view the total accumulated time of the event. Then press “B” again to reset your SC-554 Chronograph to all zeros.
Please note that “LAP/SPL” is commonly referred to as “dual/split” timing.