
Troubleshooting in Continuous Extraction Mode
Voyager
™
Biospectrometry
™
Workstation User’s Guide H-19
H
H.3 Troubleshooting in Continuous
Extraction Mode
This section includes:
• Laser threshold troubleshooting
• Spectrum troubleshooting
Refer to the table below if you are having trouble determining
laser threshold:
Table H-7 Laser Threshold Troubleshooting
Symptom Action
Signal fades very quickly Increase the laser intensity by 1 to 2 percent while
acquisition is occurring.
If signal does not increase, move to a new point in
the sample well while acquisition is occurring.
If signal does not increase, increase the laser setting
further, 2 to 3 percent at a time.
Signal increases quickly then
saturates
Stop acquisition. Decrease the laser setting by one
step (use the slider controls on the Manual Laser
page). Acquire again.
Hysteretic signal behavior
(lag in response). For
example, you observe signal
at a laser intensity of 300,
signal disappears when you
decrease to 290, signal does
not reappear when you
increase intensity back
to 300.
Move to new spot in sample well if this problem
prevents you from generating a signal that is at least
10 percent of full scale. If the signal is below
10 percent of full scale, sample may be consumed.
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