Thermo Scientific MIRAN 205B Series, Инструкция по эксплуатации

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Appendix C Scan/Calibration Procedure
C-3
B. PERFORM A PEAK PICK OR FULL SPECTRUM SCAN
To perform a Peak Pick
1 Calculate the injection volume of the compound to be injected into a closed loop
system (CLS), using the equations provided in Chapter 12 “User Performance
Verification.”
2 From the Main Menu, select "2=Change gas"
3 Select "Enter=Other". (If no application has been selected previously, it
skips to Step 4.)
4 Select "4=Spectrum scan"
5 Select either "5=Full-L" for long path scanning (used for lowest detectable
levels) or "6=Full-S" for short path scanning (used for higher concentration
scans). Note that higher quality results are obtained using a full scan. The
Main Menu returns.
6 From the Main Menu select "1=Analyze/Start"
7 If the Peak pick range is correct, input "Enter=Continue", skip to step 11
8 Select "1=Change"
9 Input beginning wavelength and select "Enter"
10 Input ending wavelength and select "Enter" (must be 2.0 microns or less)
11 Select "1=New zero". This step is omitted if no zero was saved from a
previous analysis, and the instrument skips to step 12.
12 Attach the closed loop system to the analyzer (“in” port on pump attaches to
“out” port on analyzer, “out” port on pump attaches to “in” port on
analyzer). Note that the instruction to “Install chemical filter” does not apply
to a spectrum scan, and the closed loop system should be installed.
13 Turn closed loop system pump ON for approximately 15 seconds. Select
“Enter=Continue” and wait for zero scan (approximately 1 minute)
14 If "Zero Save” is on automatic (see Analysis Preferences screen), there is no
option either to repeat zero or save zero. If “Zero Save” is not on automatic,
there will be a prompt to select "1=Repeat Zero" or "Enter=Save". After the
zero is saved, the prompt is to install the particulate filter. Do not do this.
Instead make an injection and press "Enter=Continue."