3nh NR60CP Operation Manual page 21

NR Series Precision Colorimeter
Figure 15 Delete Records
a) Delete All Samples
When select "Delete All Samples", it will delete all test samples in the
instrument and save the standard records. Then, the instrument will
display a warning interface, as shown in Figure 16. Press "Enter", all
sample data will be deleted, but the standard records are still retained.
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