Thermo Scientific FTIR, User Manual

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To connect the gas lines
Connect each of the gas lines to the rear panel of the drawer before connecting the electrical
components.
The available gas inputs to the system include the following:
l
Heated Sample Line from the sample point to the FTIR Heated Valve Drawer.
l
Nitrogen (N2) used to clean the gas cell and collect a "zero" background sample. You may also
use filtered, compressed air in place of nitrogen. If you are using filted, compressed air, use a filter
that was designed for FTIR use.
l
Optional Span 1 and Span 2 valve positions for span or calibration gas samples.
Gas lines are connected to the FTIR Heated Valve Drawer with Swagelok™ tube fittings.
1. Connect the Heated Sample Line (HSL)
A heated sampling line (HSL) (typically 2 -3 meters in length) connects the sample site to the
FTIR gas cell.Connect the HSL using the standard Swagelok fitting on the rear panel of the
drawer.
Thermo Scientific Modular Gas System User Guide 27
Installation