HP Data Explorer 4 Series - Manual (Page 229)

Manual Calibration
Data Explorer ™ Software User’s Guide 5-25
5
5.3.6 Hints for Calibrating Voyager Data
Importing a
calibration
If you import a calibration, you must import a calibration
generated from a data file that was acquired on the same
instrument using identical settings for the following instrument
setting parameters:
• Polarity
• Instrument mode
If you import a calibration that was generated using settings
that are different from the current Polarity and Instrument
Mode settings, an error message is displayed.
NOTE: The calibration of the mass scale changes when
you change the Accelerating Voltage, Grid Voltage%, or
Delay Time. Default calibration adjusts for these changes.
However, you observe more accurate calibration if you use
an external calibration (.CAL) file generated with the same
Accelerating Voltage, Grid Voltage%, or Delay Time.