9 - 1
HAPSITE ER Operating Manual
Chapter 9
Tune
9.1 Introduction to AutoTune and Manual Tune
The tune of a Mass Spectrometer (MS) determines the quality of the mass
spectrum produced by the system. The MS performance will run an autotune upon
start-up and after 12 hours of continuous operation. Tuning is normally
accomplished by the AutoTune program, which automatically sets and adjust all
parameters, however, user can set the parameters by manual tuning.
HAPSITE ER uses two gas internal standards which contain mass fragments that
span the mass range of interest. The internal standards are:
1,3,5-Tris (trifluoromethyl) benzene
Bromopentafluorobenzene
9.2 AutoTune
AutoTune can be started from the front panel or from the laptop.
For front panel instructions, refer to section 4.7.1.5, TUNE STATUS Icon, on page
4-53.
9.2.1 Starting AutoTune from the Manual Tune Screen on Laptop Computer
1 Double-click on the ER IQ icon. (See Figure 9-1.)
Figure 9-1 ER IQ icon
2 Double-click on the Tune icon. (See Figure 9-2.)
NOTE: Manual Tune is an advanced user function. Refer to section 7.3.4.1, Set
Access Level, on page 7-13 for instructions on changing access levels.
Figure 9-2 Manual Tune icon
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