168 8163A/B, 8164A/B, 8166A/B User’s Guide
5 Tunable Lasers
Figure 95 Realign Screen
If the TLS recommends Realign (after boot or during a manual lambda
zero), then “UNCAL” is shown on the user interface in both Autocal
modes. No Accuracy class is shown in the Autocal Off mode.
The bit 6 “ARA recommended” is set in the “questionable condition
register” (See the 8163A/B Lightwave Multimeter, 8164A/B Lightwave
Measurement System, 8166A/B Lightwave Multichannel System
Programming Guide)
Please execute Realign in this case.
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