Sensor Health and Validation
Why monitoring systems need to detect bad sensors, drift, dropout and installation problems.
What this topic covers
Why monitoring systems need to detect bad sensors, drift, dropout and installation problems.
Core ideas
A sensor can fail while the asset remains healthy, creating false alarms or missed degradation.
Validation compares ranges, trends, related measurements and device diagnostics.
Maintenance plans should include sensors as assets with their own lifecycle and failure modes.
Program tradeoffs
Data must retain asset identity, timestamp, units and operating context to support reliable trend analysis.
What good evidence looks like
Anomalies and model predictions are decision support, not automatic proof of failure.
Lifecycle perspective
OT security should protect monitoring availability and integrity without interfering with safe operation.