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Ensure display shows zeros. Select LAP or SPLIT mode using 'D'. Mode appears in the top row.
Lap Chronograph shows interval from previous reading; Split Chronograph shows accumulated time.
Press 'A' to start/stop timing (RUN/STOP appears). Press 'B' to reset to zeros.
Select mode with 'D'. Press 'A' to start, 'B' to record lap/split times. 'A' stops, 'B' resets.
Time reading freezes for 15 seconds or press 'D' to release to current running time.
Review up to five previous time readings by pressing 'C' (RECALL appears).
Includes On Demand Memory, Continuous Single Events, and auto-recording up to 99 readings.