- The pipe diameter or measuring range may be incorrectly set in the software.
- Moisture or liquid water may be entering the sensor, especially in thermal mass models.
- The sensor could be heavily contaminated with oil or particles.
- Review the sensor settings in S4C-FS and correct any errors in diameter or flow range.
- Check the compressed air system’s dew point to ensure no water condensation is reaching the sensor.
- Inspect and clean the sensor, and make sure filters and dryers are functioning properly upstream.










