A vertical difference may relate to sensor position, load or airflow; one reading does not establish logger failure.
Read the pattern first. Map sensor locations onto the load arrangement and keep them fixed between runs.
Investigation step
Use the same mapped points at empty, partial and planned loads. Synchronize timestamps; mark plate and product positions on the sketch.
Event record
- Upper point
- Middle point
- Lower point
- Loading arrangement
If the difference changes with arrangement, review stacking and plate position; one sensor difference does not prove product condition.
