Why event history matters
A single alarm rarely tells the full story. Event history can reveal what happened first, whether warnings preceded the trip, and whether power or communication events occurred around the same time.
What to capture
Record the date, time, machine hours, exact event heading, operating mode and relevant pressure/temperature readings. Photographing the screen can be useful when site rules permit.
Before a reset
Capture the evidence first. Then follow the machine-specific troubleshooting procedure rather than clearing multiple events and guessing from the last one you remember.
Source
Based on Sullair STS Controller User Manual, part 02250241-178 R01, referenced pages 8, 21.