Instrument calibration

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All color instruments require to be calibrated in order to perform reliable color measuring.

The calibration process is very simple and usually requires the sequential measure of a white and a black calibration tile or surface.

Different instruments (please refer to the instrument user's manual) have different calibration procedures but usually the white and black measures are involved (sometime only the white measure is required).

Different instruments and different applications require the instrument to be calibrated at specific time intervals. Usually there are few safe rules to follow about calibration, these is a short list of conditions requiring a new calibration to be performed:

 

1.   Each time the software is started.

 

2.   Environment conditions (temperature, humidity) change.

 

3.   The instrument has been used extensively.

 

4.   Manufacturer calibration suggested timeout has expired.

 

Calibration timeout

 

The software provides a countdown timer that prompt the user to re-calibrate the instrument after the calibration has expired. The expiration remaining time or the expiration warning is clearly displayed on top of to the calibration button.

 

but_cali

 

Trying to perform a color measure after timeout results in a warning message with the request to perform a new calibration.

The calibration timeout can be set to a specific amount of time in the software setup file.

 

Buttons and keys

 

In the Color matching , Formula editor and Color complements pages a dedicated button allows to perform a new instrument calibration.

 

Button

Key shortcut

Function

b_cali

F8

Starts the calibration process.