MACHEREY-NAGEL NANOCOLOR Advance Manual De Instrucciones página 29

Measurements
Symbol: Enter a symbol via the text keypad which will be shown
after the unit when the result is displayed. Confirm the entry with
Enter. No more than 10 characters are allowed.
Unit: Enter a unit via the text keypad which will be shown when
the result is displayed. Confirm the entry with Enter. No more than
10 characters are allowed.
Measuring range: Enter the desired measuring range of the
method using the numeric keypad.
Reaction time: Enter the reaction time using the numeric keypad
and confirm your entry with . The reaction time is given in
seconds. If the reaction time has been activated in the settings,
the entered time will count down before each measurement (see
12.1.2 Reaction time, page 31).
Turbidity control: When activated, the nephelometric turbidity of
the sample will also be measured with each measurement and
evaluated on the basis of the limit stored in the settings (see 12.1.1
NTU-Check, page 31). This function is available only with the
16 mm and 24 mm (OD) test tubes
Precision: Choose the number of decimals from the list in the
opening selection list. The result will be displayed with the selected
number of decimals. A maximum of three decimals is possible.
Calculation formula (Multi wavelength measurement): In this
section, the wavelengths and coefficients given in the selected
calculation formula are defined. The number of wavelengths is
determined by the choice of the calculation formula. To enter, tap
on the calculation formula entry and select the desired formula
from the list. Tap on the respective wavelength and coefficient
entry and enter the values using the numeric keypad. The list of
calculation formulas includes the options shown on the left, with
A1 as absorbance value of the wavelength 1, A2 as absorbance
value of the wavelength 2, K1 as multiplication factor of the wave-
length 1, K2 as multiplication factor of the wavelength 2, etc. To
include a subtraction step in one of the formula, a minus sign
should a assigned to the respective K factor.
Wavelength (Single wavelength measurement): Enter the wave-
length of the measurement using the numeric keypad and
confirm your entry with . A wavelength in the range between
340 nm–800 nm can be entered.
Cuvette size: Select the cuvette size from the displayed list box.
When methods are carried out, the photometer detects automat-
ically whether the correct cuvette is being used.
Spectrophotometer NANOCOLOR Advance 1.0, 11.2020 29
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