INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 273)

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HAPSITE Smart Plus Operating Manual
7.6.3 Adjusting the Ion Energy
1 Prior to performing this procedure, follow the steps outlined in section 7.6.1,
Adjusting Base Peak Gain, on page 7-26 and section 7.6.2, Adjusting
Resolution, on page 7-29 .
2 Check the Actual Percentage column:
2a If the Actual Percentage is above the acceptable range, (red box appears to
the right of the column, indicating the mass response is too high) the ion energy
needs to be reduced. Lower the ion energy by increments of 5 at a time.
2b If the Actual Percentage is below the acceptable range, (red box appears to
the left of the column, indicating the mass response is too low) the ion energy
needs to be increased. Raise the ion energy by increments of 5 at a time.
Figure 7-35 Ion Energy Needs to be Increased
NOTE: When adjusting ion energy, there are low and high limits for each mass.
Make sure manual adjustments stay within the limits shown in Table 7-1 .
Table 7-1 Manual Adjustments Guidelines
MASS IE low IE high
50 90 170
55 90 170
69 90 170