L-3 Communications Navigation Echosounder LAZ 5100 - Manual (Page 59)

Page 4-24
L-3 ELAC Nautik
Scrolling through memory data
To scroll the display to a certain time in the memory at which events that occurred earlier (relative
to time shown in "time" window) wish to be viewed, press and hold the CURSOR W key until
nearing the desired time (shown in the "time" window). Finely adjust the desired time by pressing
the CURSOR V or W key momentarily, each time a key is pressed, the time will advance by a 5
second period. If the event to be viewed occurred a lot earlier, scrolling can be accelerated by
using the "Page scroll" option. Press the ENTER key and the word "Page" will appear in the
window beneath the "Depth Alarm" window. When the CURSOR V or W keys are now pressed
momentarily, the display will be shifted by approx. three quarters of a page backwards or forwards
(pressing and holding these keys scrolls continuously).
EXAMPLE:
To view data at the time "Marker line a" was set, press and hold the CURSOR W key until the
marker line is almost at the right-hand side of the display area. Finely adjust by pressing the
CURSOR W repeatedly until the marker is at the extreme right-hand side of the display area. The
data will now be presented in the upper part of the display area. To move "Marker line b", press the
ENTER key. The word "Page" will appear in the window below the alarm window showing that the
"Page scroll" option is activated. When the CURSOR W is now pressed once, the marker line will
jump to the right. Press the ENTER key to return to the "slow scroll" option and finely adjust as
previously described for "Marker line a".
NOTE: Depth, scale and position information will not be updated during scrolling
(only time and echograms) except when a marker line passes the right-hand
border of the display area.
The following information can be read off the display area for any given time during the previous 24
system operating hours:
• Water depth at that time
• Units and mode of measurement at that time
• Range in use at that time
• Time and date at which the information was stored
• Whether the NAVIGATION mode was in use at that time
• Latitude and Longitude at which the information was stored (if connected to a nav.
system)
• Whether a shallow water alarm was activated at that time