Laser Adjust Tab - ABB GLA232 Series User Manual

ABB LGR-ICOS™ GLA232 Series Methane/Ethane Analyzer User Manual
About
The About section displays analyzer specific information, such as the:

Current software build date

Code version

IP address

Analyzer serial number

Laser Adjust Tab

Use the Laser Adjust tab to manually adjust the laser's wavelength to compensate for any
cumulative drift. (Figure 22)
Laser adjustment may be required for the following reasons:

The laser's wavelength has drifted beyond the target range of the analyzer.

The analyzer is operated outside the recommended temperature range.
Figure 22 shows the offset between absorption peaks and target lines for laser A (top plot) and
laser B (bottom plot). Both lasers are reasonably well adjusted.
ABB PROPRIETARY INFORMATION
Figure 22: Example of Laser Adjust Tab
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