A flat record can indicate a stable environment, repeated data or an unresponsive sensor. Do not decide from the graph alone.
Separate the symptom. Check file completeness, raw values and timestamps. If a known event is absent, verify further.
Try this on the next trip. Match the event time to the file; compare with a reference measurement if available.
Track recurrence
- Flat segment
- Raw values
- Known event
- Device status
If stability and sensor response remain unclear, the curve is insufficient evidence; refer the device for review.
