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Checking absorption lines in the spectrum
Functional testing
96
To test the functioning of the analyzer, you can check the positions of the
absorption lines in the spectrum. Proceed as follows:
Step
Procedure
Prerequisite: The connection to the instrument software is estab-
lished and the user is logged in as Operator.
If there is no water in the process gas, the purging flanges need to
be purged with compressed air or with ambient air.
1
In the main menu, click on "Service".
The "Service" menu is displayed.
2
Click on "Spectrum" in the "Service" menu.
The "Spectrum" menu is displayed.
Checking the position of the water line in the spectrum:
The H
O line can be found in the right-hand gray-shaded area of
2
the spectrum. The marking on the top shows the current measured
value of the H
the spectrum. If the position is not at 330±1, the analyzer should be
inspected by an authorized service technician.
Checking the position of the ammoniac line in the spectrum:
The NH
line can be found in the left-hand gray-shaded area of the
3
spectrum. The marking on the top shows the current measured
value of the NH
the spectrum. If the position is not at 130±1, the analyzer should be
inspected by an authorized service technician.
3
Click on "Done" to exit the menu.
The analyzer returns back to normal measuring mode.
Make sure that purging flanges are purged.
Operating instruction LS4000 for NH
O component, as well as the position of the line in
2
component, as well as the position of the line in
3
and H
O
3
2
OI/LS4000/NH3/H2O-EN
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