3nh TS Series, Operation Manual

Page: 30 / 55

Figure 30 Input L Value
3.2 Calibration
White and black calibration as a standard for chromatic data, is required to be done correctly, otherwise it will
affect the validity of the data.
When the calibration environment is very different from the test environment of the current sample (for example
temperature fluctuate violently), the instrument is required to be re-calibrated timely. It is also recommended to
re-calibrate if the calibration time is more than 24 hours from last successful calibration.
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Black and white board is required to be cleaned regularly,and kept in dark, dustproof, and dry conditions.
For black and white calibration operation, please refer to Section 2.2.
3.4 Illuminant
User should set corresponding Illuminant according to the actual test conditions. In the “Illuminant” interface, it
can set the standard observer angle, light source and UV light source (different model has different configuration).
In the main menu interface, click "Illuminant" to enter the light source setting interface, as shown in Figure 32.