1100 Series DAD and MWD User Manual 65
Using the Detector 4
6 Allow the detector to warm up of at least 60 minutes to provide a stable
baseline (see example in Figure 34 and Table 13).
.
NOTE
For reproducible chromatography, the detector and lamp should be on for at least one hour.
Otherwise the detector baseline may still drift (depending on the environment). See also
section “Wander / Drift Problems Due to Temperature Changes” in the Service Manual.
Figure 34 Stabilization of Baseline (both lamps turned on at the same time)
Table 13 Baseline drift after lamp turn on (example from Figure 34)
Time [minutes] Drift [mAU/hr]
17 - 20 2.6
27 - 30 0.8
37 - 40 0.4
47 - 50 0.2
57 - 60 < 0.2
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