Operation Manual

Display modes

850-165186 / Rev.B

(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 ar e 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 PI54 provides a Bottom expansion function. When enabled

the vertical area close to the seabed is expanded. T he 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.PresstheADJ button to access this setup

page.