Operation
37
850--164186 A
Tilt controls
Tilt can be electronically adjusted from +10_ to -60_ with the
standard version and +10_ to -90_ with the 90_ tilt version. The tilt
angle is normally displayed on the tilt indicator in the upper
left- hand corner of the screen in addition to the menu. In some of
the display modes the tilt angle is shown directly in the vertical
slice. Manual and auto tilt functions are selected by pressing their
respective buttons.
Figure 27 -
Tilt buttons
(CD5349)
TILT
Manual
Auto
MANUAL TILT
In the manual mode the transducer may be tilted within the
systems limits by pressing the tilt up (arrow) or tilt down (arrow)
buttons. Pressing either button once changes the tilt angle in steps
of 1_. Pressing and holding either button continuously changes
the tilt angle until finger pressure is removed.
AUTO TIL
T
In the Auto tilt mode the selected tilt angle forms the centre of the
tilt search. The selected tilt limits aredisplayed on the tilt indicator
by yellow lines and corresponding numerical values for both the
upper and lower limits.
The centre of the tilt search sector is adjusted by pressing the tilt
up (arrow) or down (arrow) buttons. Sector limits are adjusted by
pressing and holding the Auto button and simultaneously
pressing the tilt up (arrow) or down (arrow) buttons. Tilt search
sector limits can be incremented in steps of 1_ to 10_ according to
the value selected in the in the Tilt sub- menu.
The auto tilt function responds differently with regard to the
training mode selected as follows:
• Manual training mode: the transducer automatically changes
the tilt angle after each transmission in steps within the
selected limits.
• Auto search training mode: the transducer automatically
changes the tilt angle after each complete search is performed.
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