Simrad EY500, Instruction Manual

Page: 42 / 262

Operation
8
P3402/C
The super layer sets the depth limits for controlling several different features
in the system:
- TS bar chart on display
- TS detection window on display
- Integration line on display and printer
- Scope presentation.
(3) Bottom range echogram.
BOT. RANGE PRES. in the Display Menu must be enabled. The bottom range
echogram is independent of the main echogram since the range settings are
separate. It will overwrite 20% of the main echogram and may be placed on
different parts of the main echogram. (Refer to DISPLAY/Echogram Menu
description).
The bottom range echogram is separated from the main echogram with a solid
black boundary line. The bottom range echogram is blanked out if no bottom
detection has been done.
If SUB.BOTTOM GAIN is set above 0.0 dB/m, the bottom range presentation
will feature an excess gain below the detected bottom.
(4) Integration line.
INTEGRATION LINE in the DISPLAY/Echogram Menu must be enabled. The
super layer status must be assigned to one of the layers since the integration
line connects to this layer. The deflection line steepness is controlled by the
number selected for corresponding S
A
value across the echogram paper.
MODE in the Log Menu must be enabled to start integration and thereby
causing the integration line to change. The integration line will be reset when
log interval or S
A
value for one echogram crossing is reached. The deflection
value is updated every sub-log interval (normal = 1/200 nm) in SPEED mode.
In PING mode it is updated for each ping, while in TIME mode it is updated
every 2 seconds.