7 lines (6 with data), 251 Bytes

e242a 0 128 0 18:00:00 30/07/1987
# Start time=18:00
# First beat=18:04:23.625
# <age-range>: 50-54, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.57,  <RR-high-limit(sec)>: 1.296
# Note: recording with a timing signal, flutter-compensated