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FLS 2D Instruction Manual
FLS 2D Installation Instructions
Interference
Other depth sounders especially those that operate at 200 kHz must be wired so
they can be switched off
if interference occurs. (This may appear as ‘submarine’
like echoes coupled with a reduction in sensitivity).
Maintenance
Protect plugs and cables from chafe. Clean the transducer face regularly and check
for barnacles etc. With care, this may be done afloat. If you have never done this
before, phone us first! You may anti-foul the transducer. Avoid long term exposure
of the LCD to direct sunlight.
Wire Colours
Red = positive supply (+12 / 24v)
Black = negative supply (0v)
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FLS 2D Instruction Manual
The desired menu option is chosen using the menu key. When the arrow cursor is
alongside the appropriate option, pressing the up or down
arrow keys changes the
setting.
Pressing the page key presents the user with another set of options. There are 3 menu
pages:
·
Main Options
·
Display Options1
·
Display Options 2
The unit will return to the sonar display after 10 seconds if no buttons are pressed
within that time. Alternatively, the user can return to the sonar display by pressing the
mode key.
Shallow Alarm
The Shallow Alarm can be set to Off or 1m to 20m. When a certain number of echoes
occur above this setting, an alarm will sound (1 second on, 1 second off). The alarm
setting is retained after power down.
The shallow alarm is provided as a guide to warn the user that echoes are appearing
above the set level. It should be noted that in some conditions (particularly in noisy
sonar conditions) the alarm may be triggered by echoes from the sea surface (in
choppy water), or turbulence generated by other vessels. As experience is gained with
the FLS, the user should be able to identify this kind of noise.
Gain Level
The gain level controls the amount of sonar signal level accepted by the FLS. The
higher the value, the more signal will be accepted and give a stronger echo on the
display - but will also increase the amount of noise that will show. A lower value will
filter more of the signal and reduce the amount of noise - but will give a weaker echo
on the display.
Noise Filter
This setting allows the user to reduce the amount of ‘clutter’ on the sonar display.
The filter lever sets the number of times an echo must occur within a similar location
before it is displayed.
FLS 2D Operating Instructions
