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Uras26: Optical Alignment,
Procedure
Figure 9-4
Uras26 Analyzer
Module Emitter
42/24-10 EN Rev. 9
continued
Step
Action
1
Turn on the zero gas supply.
2
Open the 19-inch housing front plate or the wall housing cover.
Select the Optical adjustm. menu item.
3
Select the Sample component to be measured in the rear detector
4
(as seen from the emitter).
5
Minimize the (zero gas) value displayed by turning the applicable
beam path aperture adjustment wheel 1 or 2 (see Figure 9-4).
If
The measurement value is much smaller than 1,000,000 Go to Step 10.
The measurement value is greater than 1,000,000
6
Loosen the two emitter case mounting screws 3 and insert the emitter
wrench 6 in openings 4.
7
Turn the emitter case 5 until the displayed value is minimized.
(The minimum can be greater than 1,000,000.)
8
Tighten the emitter unit mounting screws 3.
9
Repeat steps 5-8 until a minimum value is displayed.
10
Close the 19-inch housing front plate or the wall housing cover.
11
If
The emitter is replaced
The emitter is not replaced
1
1 Beam path 1 aperture adjustment wheel
2 Beam path 2 aperture adjustment wheel
3 Two emitter case mounting screws (beam path 2 here)
4 Openings for emitter wrench insertion
5 Emitter Case
6 Emitter Wrench
Chapter 9: Inspection and Maintenance
Then
Perform a phase alignment for all sample
components (see page 9-6).
Calibrate the zero and span points for all
sample components in the beam path.
3
2
4
5
6
Then
Go to Step 6.
9-5
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