Spectroquant Pharo 300 - Page 123

Spectroquant
®
Pharo 300 Operation
123
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 Extreme values (zoomed area)
Highlights the extreme values (minimum and maximum values) of the dis-
played spectrum.
 Mark points
Opens an edit mode where you can highlight individual points of the spec-
trum.
With the [Mark] function key you can highlight individual points.
The wavelength and measured valued are displayed at the highlighted
point.
With the [Delete] function key you can remove individual points.
 Delete all marks
Erases all highlighted points in the spectrum.
 Original
Displays the original, unedited spectrum.
 Integral
Calculates the area between the zero line and curve within a freely select-
able wavelength interval [X1,X2].
 Derivative
Calculates the derivative of the total spectrum. To calculate the second
and third derivative, the function can be carried out several times.
 Compare spectrum
Loads a second spectrum into the same diagram for direct comparison.
 Add spectrum
Adds a stored spectrum to the current spectrum.
 Subtract spectrum
Subtracts a stored spectrum from the current spectrum.
 Divide spectrum (ratio)
Divides the absorbance or % transmission values of the current spectrum
by the values of a stored spectrum
 Add fixed value
Adds a constant absorbance or % transmission value to the current spec-
trum.
 Multiply fixed value
Multiplies the absorbance or % transmission values of the current spec-
trum by a constant value.
Note
The addition, subtraction and division of two spectra always applies to the
common wavelength range of both spectra only.