Troubleshooting and Test Functions 4
1100 Series FD Reference Manual 121
Procedure using an Agilent ChemStation
1 Assure that the FLD signal is signal 1 (in case you use an additional
detector in the system). Otherwise wrong calculations are done.
2 Copy the method FLRAMTST.M to \HPCHEM\1\DATA\METHODS and the
macro FLRAMTST.MAC to \HPCHEM\CORE.
3 Load the method (normally no changes are required).
4 Define in the Sample Information the file name and description.
5 Turn the pump on and flush with water for a few minutes to assure a clean
flow cell.
6 Start a blank run with a flow of 0.5 to 1 ml/min.
7 When the run is completed a report is displayed and the status line shows
the “Raman signal/noise ratio = “ value (see Figure 49) which should be
>200 (with FLF board revision A) or >400 (with FLF board revision B and
above).
8 To re-display the number, type LEO_FLD_EVALUATE_NOISE_TEST and
press Enter.
NOTE
The method FLRAMTST.M and the macro FLRAMTST.MAC are part of the A.06.xx
ChemStation software CD (\1100FLD\RAMAN\).
NOTE
A.06.01 ChemStation CD only: Change the STOP TIME to 23 minutes. The 22-minutes stop
time in the method will cause wrong Raman signal/noise ratio values!
NOTE
You may remove the flow cell and check for air bubbles. After re-inserting the cell, turn the
lamp on.
NOTE
If the pre-run macro is no longer loaded, the Raman value shows different values. In this
case re-load the pre-run macro.
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