7 lines (6 with data), 250 Bytes

e076a 0 128 0 13:45:00 26/07/1988
# Start time=13:45
# First beat=14:14:30.718
# <age-range>: 65-69, <sex>: Female, <medication>: None
# <RR-low-limit(sec)>: 0.601,  <RR-high-limit(sec)>: 0.976
# Note: reel-to-reel recording, not flutter-compensated