User`s guide

Acquiring PSD Data with Standard Instrument Settings (.BIC) Files

Voyager

™

Biospectrometry

™

Workstation User’s Guide 7-25

2. If the PSD Acquisition Settings control page (Figure 7-8)

is not displayed, select PSD Acquisition from the View

menu.

Figure 7-8 PSD Acquisition Settings Control Page

NOTE: The Precursor Ion Selector in PSD mode is the

same parameter as the Timed Ion Selector in Reflector

mode. If you change the Precursor mass used by the

Precursor Ion Selector in PSD mode, the mass

specified for the Timed Ion Selector in Reflector mode

also changes.

Setting voltages

and external

calibration for the

precursor

spectrum

3. For optimum mass accuracy, change the Accelerating

Voltage and Grid Voltage% (on the Instrument Settings

control page) to the values you used to acquire the

precursor spectrum and to generate the calibration.

NOTE: If you use different Accelerating Voltage, Grid

Voltage, or Delay Time to acquire the precursor

spectrum and generate the calibration than you use to

acquire the fragment spectra, the software

compensates for the different values. However, using

different voltages may not yield optimum mass

accuracy.