INFICON Explorer Portable Gas Chromatograph - Manual (Page 204)

Method Development
202
5. Select the parameter you want to change. Press SLP UP.
The up slope factor determines what the integration start point will be. If up
slope is set to 6 mV/S, then the integrator will look for the signal level to rise at
a rate of at least 6 mV/S for five consecutive samples. Up slope can be any
value from 1 to 99 mV/S. Typically values between 1 and 16 mV/S are used.
6. Use the arrow keys to enter the new value and press Enter Menu. Press SLP
DWN and enter a new value, if required.
Typically values between 1 and 16 mV/S are used.
7. To change the filter setting, press FILTER.
8. Use the arrow keys to select the desired filter setting and press Enter Menu.
9. Press Exit to close the box. Press Enter Menu to close the menu.
10. Press Enter Menu, DISPLAY, GC, GRAPH and REINT.
The signal will be re-integrated using the new integration settings.
11. Press DISPLAY, GC, PEAK to see if the peaks have been integrated more
accurately.
12. If you need to change the settings for the other two columns, repeat this
procedure for each column.
13. When you have changed the settings for each column, enable all the columns
required for your method.
Minimum Height
The minimum height is the minimum peak height that will be accepted as a sample
peak. This factor allows the integrator to eliminate peaks due to noise.
1. Press Enter Menu, SETUP, CONFIG, COLUMN.
2. Select the column for which you want to alter the analysis time. Disable the
other columns.