Shaft Speed (RPM of shaft)
Shaft Health (Dynamic state of the shaft - include instability / erosion or damages to the blades.)
Regulations / Deviations (Deviation in Speed)
Misalignment (Misalignment in Turbine and attached gearbox)
Bearing Health(Shockss experienced / frictional loss in Journal bearings)
Combustion Kit (Quality of Injection and combustion (incase of Gas Turbines)
Red Triangle: Indicates exercising caution and watching related engine operation closely (pre-alert conditions).
Red Circle: Indicates the alert condition. You may need to understand the operating condition better if you need minor intervention or troubleshooting if the trend/engine dynamic behavior persists irrespective of load conditions.