Siemens 7MJ2000-1A 00 Series Operating Instructions Manual page 58

Operation
6.5 Trace menu
Explanation of timer names using example of "P1-UP" and "P1-T"
P
1
UP
T
Explanation of timer names using example of "A3-UP" and "A3-T"
A
3
UP
T
58
Pre-alarm (PrAL)
Acoustic channel 1
This is the time before the sounding of the final alarm, in which the associated
alarm limit is exceeded.
This is the accumulated time since the associated alarm was received.
Main alarm (AL)
Acoustic channel 3
This is the time before the sounding of the final alarm, in which the associated
alarm limit is exceeded.
This is the accumulated time since the associated alarm was received.
SITRANS DA400 for oscillating positive displacement pumps
Operating Instructions, 09/2008, A5E00841120-03