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LCS III - Konica Minolta Sensing Americas, Inc.

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Standard Operations<br />

5.7.1.2 Take single wavelength measurements (single reading)<br />

58<br />

1. Insert the blank cuvette/cell into the cuvette/sample cell holder.<br />

Press Zero.<br />

Note:The Read key is only active after the zero measurement has<br />

been completed.<br />

2. Insert the sample cuvette/cell into the cuvette/sample cell<br />

holder. Press Read.<br />

3. For data storage, see section 5.3.1 on page 28.<br />

5.7.1.3 Take single wavelength measurements (continuous readings)<br />

1. Insert the blank cuvette/cell into the cuvette/sample cell holder.<br />

Press Zero.<br />

Note: In the reading mode ”Continuous“ only the Zero key is shown to<br />

start the reading. The reading sequence is started automatically.<br />

2. Insert the sample cuvette/cell into the cuvette/sample cell<br />

holder.<br />

3. Press Options and then the Store icon to store the displayed<br />

data in the Data Log.<br />

Note: For data storage, see section 5.3.1 on page 28.<br />

5.7.2 Multi-Wavelength mode – measurements at more than one wavelength<br />

5.7.2.1 Set the reading mode at different wavelengths<br />

In the multi-wavelength mode, absorbance values can be<br />

measured at up to four wavelengths and the results can be<br />

mathematically processed to obtain sums, differences and<br />

relationships.<br />

Absorbance measures the amount of light absorbed by the sample,<br />

in units of Absorbance.<br />

% Transmittance measures the percent of the original light that<br />

passes through the sample and reaches the detector.<br />

Turning on the concentration factor allows selection of a specific<br />

multiplier for converting absorbance readings to concentration. In a<br />

graph of concentration versus the absorbance, the concentration<br />

factor is the slope of the line. Concentration is calculated using a<br />

single factor for each wavelength, which is input by the user.<br />

Press Multi Wavelength in the Main Menu. Press Options for<br />

Parameter Setup. Table 8 on page 59 describes the multi<br />

wavelength setup options.

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