7 lines (6 with data), 252 Bytes

e228a 0 128 0 13:55:00 12/11/1988
# Start time=13:55
# First beat=13:59:52.562
# <age-range>: 75-79, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.515,  <RR-high-limit(sec)>: 0.929
# Note: recording with a timing signal, flutter-compensated