Elma ELMA-1336, Инструкция по эксплуатации

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target values.
Press H key again to exit the the data hold mode.
5-5 Using the Correction Factors (CF)
5-5-1 Using CF correction
The CF allows the user to calibrate the meter to any subject desired. It can be
used to calibrate the meter to another standard subject for which the values is
known, to precisely standardize meters to the same subject.
After setting the CF, you can use the CF key to switch use of CF correction
ON or OFF.
5-5-2 Setting the CF values
You set the CF in two stages : First you measure a light source whose
output values are known, and then you key in the known values. The meter
calculates the CF based on the difference between the measured values and
the keyed-in values.
1. Measure the light source

Press MODE key to move to the (Ev,
x, y) display mode. The CF can only
be set while the display is showing
the (Ev, x, y) color coordinates.

Aim the receptor at the light source
you want to measure.