Elekta Neuromag NM21283A, User Manual

Page: 28 / 85

5 Description of the menus
22 NM21283A-A
Active channels
This button pops up a dialog that allows you to set which channels
are affected by the tuner. If a channel is not active, it is not modified.
See “Tuning selected channels” on page 18.
5.3 Commands Menu
This menu contains buttons for various commands that can be executed.
Reset electronics
Pressing this button causes resetting of all active channels. See
“Resetting channels” on page 13.
Heat sensor
Pressing this button heats the sensor element containing currently
selected channel. See “Heating sensors” on page 13.
Heat all sensors
Pressing this button heats all sensor units. See “Heating sensors” on
page 13.
Show all histories
Selecting this button will show a graph containing noise histories of
all channels superimposed on top of each other. See “Viewing noise
history of a channel” on page 17.
Clear histories
Clears the history records of all the channels. See “Viewing noise
history of a channel” on page 17.
5.4 Search Menu
This menu contains buttons that allows you to find channels according to
some characteristic feature of the channel. In order to make these searches
to work, the particular characteristic of the channel must be first mea-
sured.
Worst Noise
Search the channel with largest white noise.
Next
Search next channel. This button performs an incremental search
using the same criterion as the last search to find second, third etc.
bad channel.