A&D TM-2441 Instruction Manual page 48

The mark is displayed on the LCD while A-BPM is used.
Blood pressure is measured automatically at A-BPM start time.
An initial pressurization value of A-BPM is AUTO, so that
a proper pressurization value is selected automatically.
If the first pressurization is insufficient, re-pressurizations are
performed automatically up to two times.
When you delete data from the memory or move the AUTO
switch to "OFF", the pressurization value is reset to the initial
pressurization value.
When a measurement error occurs and the waiting time until
the next start time is longer than 8 minutes, blood pressure is
measured once after 120 seconds. The measurement result is
stored in the memory.
If you want to suspend A-BPM, release the LOCK switch and
move the AUTO switch to "OFF".
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