7 lines (6 with data), 250 Bytes

f109a 0 128 0 11:08:00 27/01/1989
# Start time=11:08
# First beat=11:08:55.632
# <age-range>: 65-69, <sex>: Male, <medication>: None
# <RR-low-limit(sec)>: 546,  <RR-high-limit(sec)>: 1.023
# Note: recording with a timing signal, flutter-compensated