NanoPhotometer
®
P-Class User Manual
Version 2.1 Page 43 / 70
5.3 Wavescan
An absorption spectrum can be obtained from your instrument, enabling simple identification of peak height and
position.
The procedure is as follows:
Parameter Screen
Measurement Screen
Results Screen
Parameter Screen
Step 1 Press 3 to select Functions.
Step 2 Press 3 to select Wavescan.
Step 3 Set Start Wavelength by using keypad numbers or left
and right arrows.
Step 4 Set End Wavelength by using keypad numbers or left and
right arrows.
Step 5 Select the Mode, Absorbance or %Transmission, using the
left and right arrows.
Step 6 To enter the measurements screen with the selected
parameters press OK OR cancel the selections and
return to the Functions folder by pressing Cancel .
Measurement Screen
Step 7 Insert the reference sample. Press Blank key. This will be
used for all subsequent samples until changed.
Step 8 Insert sample and press Sample .
Step 9 Repeat for all samples.
Results Screen
A graph of the wavescan is displayed, along with a table
of Absorbance/%T at each peak. Up to eight peaks can
be shown. Use the left and right arrows to move the
cursor along the graph. When it reaches a peak the peak
height and width of the peak is displayed at the top of the
screen. To zoom in on the wavelength scale, use the up
arrow. This auto-scales on the Absorbance/%T scale
(dependent on the Graph Scale option) and this is
retained for subsequent measurements. To zoom out
again, use the down arrow.
Step 10 Press Menu/Options to display available options which
are described next.
Step 11 Press Escape and confirm with Yes to return to the
Functions folder. Query needs confirmation to avoid
unintended escaping the application.
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