GRATING SPECTROPHOTOMETER OPERATING MANUAL
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Figure 32 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.
Black and white board is required to be cleaned regularly, and kept in
dark, dust proof, and dry conditions.
For black and white calibration operation, please refer to Section 2.2.