25
5.3.2 Calibrating to a Standard
A calibration standard can be used to determine the
concentration factor. Insert the cuvette containing the
blank solution into the reference position in the sample
chamber and insert the cuvette containing the standard
solution into the sample position. Close the instrument
lid. The concentration of the calibration standard is
entered by pressing the function button below the
Standard option. The concentration of the calibration
standard can then be entered using the numerical
keypad. Press the Enter key to confirm. The concentration factor is then updated on the screen.
5.4
SAMPLE MEASUREMENT
5.4.1 Photometric Measurements
Insert the cuvette containing the blank solution into the
reference position in the sample chamber and insert
the cuvette containing the sample solution into the
sample position. Close the instrument lid and the
photometric result will be shown on the screen.
5.4.2 Measuring a Sample after Entering a Concentration Factor
Remove the cuvette containing the blank solution and
place a cuvette containing the sample to be measured
in the sample chamber. Close the instrument lid and
the concentration value will be shown on the screen.
In order to measure a sample based on a known factor the value for the factor must be entered in the
settings before commencing measurement of the sample.
