Voyager DP-263-S Guía de usuario Pagina 277

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Impact of Changing Instrument Settings Parameters
Voyager
Biospectrometry
Workstation User’s Guide 5-47
5
Reflector mode
To obtain maximum resolution in Reflector mode for
isotopically resolved species, set the Guide Wire% to 0.
To increase sensitivity in Reflector mode, increase the
Guide Wire Voltage% to:
Up to 0.02% for <5,000 Da
Up to 0.05% for >10,000 Da
PSD mode
In PSD mode, use settings between 0.005 and 0.02 percent.
For more information, see Chapter 7, PSD Analysis.
5.3.5 Understanding Digitizer Settings
This section describes:
Horizontal digitizer settings
Vertical digitizer settings
For more information on default digitizer settings, see
“Mode/Digitizer Settings Dialog Box” on page 5-24.
5.3.5.1 Horizontal Digitizer Settings
This section describes:
Horizontal settings
Default Number of Data Points/Bin Size settings
Overriding horizontal digitizer settings
Effects of adjusting Bin size
Horizontal
settings
The digitizer settings include two horizontal parameters that
affect the data acquired:
Number of Data Points—Digitizer memory (in data
points) available for data sampling.
Bin Size (nanoseconds)—Sampling rate of digitizer
equal to the time interval between subsequent data
points.
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