Micromass Quattro Ultima, User Manual

Page: 64 / 227

Scope Parameters
Scan Time
and
Inter Scan Delay control the
speed with which the tune peak
display is updated.
The tuning system behaves
more responsively if the scan
time and inter scan delay are
short.
To change the scope parameters:
Press , or choose
Scope Parameters
from the tune page
Options
menu.
Make any required changes to the settings.
Press OK .
Gas Controls
To turn a gas on or off:
Press or , or choose the required gas from the tune page
Gas
menu.
If the gas was previously turned off it is now turned on. A tick mark appears
next to a gas if it is turned on.
Ramp Controls
To set up a cone voltage ramp:
Choose
Cone Ramp Gradient
from the tune page Ramps menu.
Two values of cone voltage are defined
at two particular masses. These values
define a gradient for the cone voltage
which is then extrapolated to cover the
full mass range.
Make any changes required and
press
OK
to exit.
To initiate the cone voltage ramp:
Press , or choose Use Cone Ramp from the tune page Ramps menu.
A tick mark appears next to the menu item if the cone voltage ramp is selected.
Tuning
Page 64
Quattro Ultima
User's Guide