The Calibration pane contains a Status area where you can view the calibration status of your instrument. The date of the next recommended calibration and the date of the last successful calibration is displayed to the right of each calibration set. Real-time colored status indicators identify the readback status for each parameter and are as follows:
Orange: Indicates that a given calibration set is in an unknown state and might require calibration as a result of a procedure failure (for example, spray instability, calibration solution contamination, as so forth). Failure recovery information can be found in the gray notification box at the bottom of the Calibration pane.
Red: Indicates that the calibration set is outside of its expected calibration range. You must re-calibrate the instrument.
NOTE
The absence of a colored indicator means the calibration is within its calibration tolerances, which is based on the last calibration or calibration check that was performed.