Jenway 6850 - Manual (Page 33)

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SECTION 7 – SPECTRUM
The spectrum measurement mode enables measurements of absorbance or % transmittance over a
range of wavelengths to be performed. The absorbance or % transmittance at each wavelength is
plotted graphically. Post measurement tools such as peaks and spectral points analysis can be
performed. This operating mode can be used to partially characterise a sample.
7.1 SPECTRUM MODE SCREEN
The spectrum measurement mode enables
measurement parameters to be changed and post
measurement tools to be accessed. The four options at
the bottom of the screen allow the user to edit the scan
settings, select the measurement mode, perform a post
measurement search of the spectrum or apply a
smoothing algorithm to the displayed scan. These
options are selected with the corresponding function
buttons.
7.2 METHOD SETUP
The spectrum scan settings can be edited by pressing
the function key below the Setup option. The options
that can be changed are:-
1. Scan from (Highest Wavelength)
2. Scan to (Lowest Wavelength)
3. Scan Interval
4. Scan Speed
The numeric keypad should be used to enter the required start and end wavelengths and the up and
down arrow keys are used to select from the available scan interval and scan speed options. Press
the Enter key to confirm.