7 lines (6 with data), 248 Bytes

f025a 0 128 0 11:31:00 14/10/1987
# Start time=11:31
# First beat=12:11:29.132
# <age-range>: 40-44, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 0.429,  <RR-high-limit(sec)>: 1.085
# Note: reel-to-reel recording, not flutter-compensated