3 work with reference scans – Hach-Lange DR 3800 User Manual User Manual
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Advanced Operations
6.6.3 Work with reference scans
There are two options to work with Reference Scan:
First option:
1. Press Reference: Off in the Options menu to select another
scan to display on the same screen with the current scan.
Highlight the required scan number and press
Highlight Reference.
Note: After selecting a reference scan the Reference: Off key in the
Options menu turns into Reference: On.
Note: Only scans that have the same wavelength range and step can
be displayed using the overlay option. This process can be repeated
until all matching scans are displayed.
2. The reference curve is shown in orange. The absorbance or
transmittance value and the associated wavelength are
highlighted in grey.
Note: A black and an orange box are shown in the left corner of the
display. The orange box relates to the reference scan and the black
one relates to the current wavelength scan.
1. To complete the wavelength scan reading, see
.
•
The newly plotted wavelength scan curves are shown in
black.
•
The absorbance or transmittance value and the associated
wavelength are highlighted in black.
•
In addition, the display shows the difference between the
wavelength scan curve and the reference curve against the
wavelength.
2. Press the black or orange small box in the left upper corner on
the screen to switch between the actual wavelength scan and
reference scan.