If early-stop and final-stop readings differ, total duration alone does not identify the cause. First align record times.

Separate the symptom

Compare logger and stop clocks; note timezone and clock offset.

Record the next run

At each stop, log door opening, waiting, remaining load and sensor point. Match ambient conditions and load layout too.

Track recurrence

  • Stop order
  • Door-open and closed waiting
  • Remaining load
  • Sensor and reading time

If the rise recurs with one event, inspect that handling record; leave product decisions to the authorized process.