7 lines (6 with data), 248 Bytes

e229a 0 128 0 10:30:00 15/09/1987
# Start time=10:30
# First beat=10:32:34.406
# <age-range>: 50-54, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.578,  <RR-high-limit(sec)>: 1.281
# Note: reel-to-reel recording, not flutter-compensated