Agilent Technologies 5975 Series Operating Manual page 108

4 Operating in EI Mode
11 The software will turn on the ion source and mass filter (quad) heaters. The
12 Wait for the MS to reach thermal equilibrium.
13 When the pumpdown is finished, click OK to clear the pump down status
14 Tune the MS.
108
temperature setpoints are stored in the current autotune file. The pump
down status and "the MSD actual parameters" in comparison to "criteria
required for pump down completion" is shown.

After the message Okay to run appears, wait 2 hours for the MS to reach
thermal equilibrium. Data acquired before the MS has reached thermal
equilibrium may not be reproducible.
window.
5975/5977 Series MSD Operating Manual