Micromass Quattro Ultima, User Manual

Page: 58 / 227

Modifying the Peak Display
The tune peak display is modified using either the tune peak controls, or the mouse
directly on the display. To select peaks:
Press , or select Options , Peak Editor .
Choose the peaks to be displayed by checking the appropriate boxes.
For each active peak select the Mass , Span and Gain .
To change the function:
Select the function for the peak from the drop down list.
For MS-MS functions, Set is enabled allowing the mass of the parent, daughter,
neutral loss or neutral gain ion to be entered.
To change the tune mass:
Click and drag the mouse within the bounds of the axis to draw a “rubber band”
around the region of interest.
Release the button.
This range is redisplayed to fill the window. The mass displayed in the
Mass
box is the mass at the centre of the window.
This operation can be repeated as often as required.
Pressing once displays the previous magnification range and mass, pressing
it a second time returns to the default settings.
or:
Enter a value in the
Mass
box for the required peak and press
Return
.
This becomes the default, so if the range is altered with the mouse and is
pressed twice
Mass
returns to this value.
or:
Position the cursor at the top of the peak window, just below the line showing
the gain.
When appears, click the left mouse button and drag until the required mass
is displayed in the Mass box and at the top of the window.
This becomes the default, so if the range is altered with the mouse and is
pressed twice Mass returns to this value.
Tuning
Page 58
Quattro Ultima
User's Guide