Cleaning The Dialpath Accessory - Agilent Technologies 4500 Series Operation Manual

Figure 11. Rotating the DialPath so that the accessory optical window is facing
down
When in sample analysis mode, the DialPath pathlength is set to a
predetermined factory-set value in microns. The alignment of the
accessory is pre-set at the factory and so there is no adjustment
required.
The steps involved with analyzing a sample with the 4500 DialPath
FTIR are:
1
2
3

Cleaning the DialPath accessory

Rotate the DialPath so that optical sensor #2 is pointing upward.
Clean the window of the position used first, then clean the bottom
window, indicated in Figure 10. If using Position 2, you will find it
necessary to clean either Position 3 or 1, depending on the direction
the DialPath was rotated in.
Agilent 4500 Series FTIR Operation Manual
Clean the sample window.
Collect a background spectrum.
Collect a sample spectrum.
Analyzing Samples
37