48 5975/5977 Series MSD Operation Manual
3 Operating in Electron Ionization (EI) Mode
4 Press Enter to apply the changes.
To view MSD vacuum pressure and Turbo speed/Foreline Pressure from the
GC control panel
1 Press MS/Aux Det to display the 5977B MSD menu.
2 Press the down arrow to scroll to HiVac Pressure, or Turbo Speed % of full
/ Foreline Pressure.
To vent the MSD from the GC control panel
1 With the MSD pumped down, press MS/Aux Det to bring up the 5977B MSD
menu.
2 Press the down arrow to scroll to Start MSD Vent?. (Press Off/No to cancel
the vent cycle and pump down the MS).
3 Press ON/Yes to start the venting cycle.
4 When prompted open the vent valve.
To pump down the MSD from the GC control panel
1 With the MSD vented, press MS/Aux Det to bring up the 5977B MSD menu.
2 Press the down arrow to scroll to Start MSD Vent?.
3 Press ON/Yes to start the pump down cycle.
4 When prompted open the vent valve.
To view the firmware version of the MSD from the GC control panel
1 Press MS/Aux Det to bring up the 5977B MSD menu.
2 Press the down arrow to scroll to Firmware.
To view the serial number of the MSD from the GC control panel
1 Press MS/Aux Det to bring up the 5977B MSD menu.
2 Press the down arrow to scroll to Serial#.
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