
Appendix I Using the Oscilloscope and Control Stick
I-6 PerSeptive Biosystems
I
The Channel indicator (Ch1 in Figure I-3) displays Ch1 in
Linear mode. On Voyager-DE PRO and Voyager-DE STR
systems, the Channel indicator displays Ch2 in Reflector
mode.
The top of the screen also displays:
• Average—During acquisition
• Stop—When acquisition is complete
CAUTION
The oscilloscope does not save spectra. If you acquire a
new spectrum before downloading to the Voyager
processing software, you lose the previous spectrum.
Adjusting the
display
To adjust the display:
• Center the signal vertically on the screen using the
Vertical Position knob.
• Adjust the amplitude of the signal using the Vertical
Scale knob. Make sure the peak of interest is on scale.
• Widen peaks using the Horizontal Scale knob.
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