Agilent Technologies 5977B Series Operating Manual page 94

4 Operating in EI Mode
Figure 25
3 To change a temperature Setpoint or Limit enter the new parameters and
Temperature setpoints or limits can not be changed until the foreline pressure
is less than 300 mTorr, or the turbo pump is running at least 80% speed. MSD
heaters remain off as long as the diffusion pump is cold or the turbo pump is
operating at less than 80%. Normally, the foreline pressure will be below
100 mTorr, or the turbo pump speed will be at 100%.
The MSD heaters turn on at the end of the pumpdown cycle, and turn off at the
beginning of the vent cycle. The reported setpoints will not change during
venting or pumpdown, even though both MSD zones are turned off.
94
HES manual tune values tab
click Apply.
5977B Series MSD Operating Manual
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