Simrad PI44 C, Руководство оператора

Страница: 63 / 322

Display modes
51
850-165085 / Rev.B
(C) Current ambient air temperature.
(D) Current vessel speed
(E) Current wind speed
(F) Depth under keel
(G) Time scale: Elapsed time since sounding (ping). Note that
the time scale will change depending on the chosen scroll speed.
(H) Depth scale: This scale can be set up change automatically
depending on the current depth.
(I) A-scope presentation.
(J) Colour scale. This scale shows how the echoes are presentes,
The strongest echoes are displayed using the colour on the top
of the scale, while the weakest echoes are displayed using the
coloutrs at the bottom of the scale.
(K) Bottom echo
(L) Fish echo
The presentation is controlled by the parameters defined in the
presentation setup. To change these parameters, press the
ENT
button to open the Echo quick menu , and choose Echo
presentation setup . To change presentation units, press the
MENU button to open the main menu, and then select Speed
alarm, units and settings on the Setup menu.
In the Echo sounder setup you can change the readout for
current depth (F), and you can disable the time scale. These
setup parameters are available on the
Setup menu.
Bottom expansion
The PI44 provides a Bottom expansion function. When enabled
the vertical area close to the seabed is expanded. The resulting
presentation will not show the depth variations, as the bottom
will appear flat. However, echoes close to the bottom will be
enhanced. Note that the depth range in this presentation will be
“upside down”, as the seabed is defined as level “0”.
To enable the Bottom expansion function, press the B-LCK
button on the keypad. To disable it, press the STND button. The
vertical depth range of the bottom expansion function is
controlled by the
Expansion window parameter in the Echo
presentation setup . Press the ADJ button to access this setup
page.