Thermo Scientific MIRAN 205B Series Instruction Manual page 50

Chapter 6 Change Application
If the instrument is a SapphIRe-SL or SapphIRe-XL, a Secondary Applications menu
might appear, providing alternate application wavelengths. For example, if Acetone is
chosen from the Primary Applications Menu, the Secondary Applications Menu appears,
as shown below, in the Secondary Applications menu. The chemical names are
interpreted as follows: The 11.0 refers to the analytical wavelength and the 2000 refers to
the full scale value. The asterisk (*) next to the 2000 indicates the alternate choice for
application. For more information on the SapphIRe-SL and SapphIRe-XL analyzers,
refer to Chapter 1, "Introduction."
Once a selection is made from the Secondary Applications Menu, the display responds "-
ACCEPTED-."
In the above example, Acetone can be analyzed at either 8.4 microns or 11.0 microns.
Both calibration ranges are 0 to 2000 ppm. In Figure 6-1, Acetone is present with Methyl
Acrylate. The figure shows that Methyl Acrylate has a strong absorbance peak at 8.4
microns. In order to avoid interference from Methyl Acrylate when analyzing Acetone,
the analysis should be performed at 11.0 microns. Note that Methyl Acrylate does not
absorb at 11.0 microns.
┌────────────────────────────────────────┐
│╒══CURRENT APPLICATION══╕ STANDARD LIB
││
││
││
││ METHANE: ---- ppm
││
││
│└───────────────────────┘ ENTER=Search
└────────────────────────────────────────┘
Primary Applications Menu
┌────────────────────────────────────────┐
│╒══CURRENT APPLICATION══╕
││
││
││
││ ACETONE: ---- ppm
││
││
│└───────────────────────┘
└────────────────────────────────────────┘
Secondary Applications Menu
│1=111TRICL
│2=11DICLOR
│3=12DICLOR
│4=13BUTADI
│5=2CLETH
│ =More
ACETONE
│1=11.0 2000
│2= 8.4 2000*
│
│
│
│
6-2
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