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8NAVMAN FISH 4200 Installation and Operation Manual
Alarms can be enabled to automatically detect certain
conditions, such as the water being too shallow. The
trigger settings for the alarms can be defined to suit
the boat and individual preferences.
The FISH 4200 has seven alarms, TOO SHALLOW,
TOO DEEP, FISH ALARM, TEMP VALUE, TEMP
RATE, LOW BATTERY and LOW FUEL.
The alarm symbols and beeper cycles for all of the
alarms are shown in section 4-1. The FISH ALARM
is three short beeps, the TOO SHALLOW ALARM is
a rapid continuous beep while all others are a slower
continuous beep.
When an alarm condition is met, then:
· the beeper sounds.
· the ALARMS menu is displayed on the
screen with the activated alarm(s) flashing.
Press any key to acknowledge the alarm, stop the
beeping and remove the ALARMS menu. This does
Select MAIN MENU - HISTORY to display the
HISTORY screen.
The HISTORY screen displays the most recent
echoes on the right of the screen and the oldest
echoes on the left. These eventually disappear off
the screen.
The vertical bar on the right edge of the screen is the
zoom bar. This shows the zoom range. To adjust the
zoom range see section 3-4.
3-1 ALARMS
not disable the alarm. The symbol will continue to
flash until the alarm condition is no longer present.
Alarms automatically re-enable
The TOO SHALLOW, TOO DEEP, LOW FUEL and
LOW BATTERY alarms automatically re-enable
when the value moves outside the alarm trigger
setting.
The TEMP VALUE alarm automatically re-enables
when the temperature is more than 0.45°F (0.25°C)
above or below the alarm trigger setting.
The TEMP RATE alarm automatically re-enables
when the rate of temperature change falls below the
trigger setting by more than 0.2°F (0.1°C) per minute.
Enabling Alarms and Changing Trigger
Values
See section 4-1 for information about enabling alarms
and changing the trigger values.
3-2 HISTORY screen operation
the boat. This means that the HISTORY screen
display moves across the screen more quickly than
when the boat is travelling in deep water. In deep
water, the echoes take longer to travel between the
objects and the boat, producing a display that moves
across the screen more slowly.
Note 1: Different fish symbols can be selected (see
section 4-4).
Note 2: The depth of bottom can be adjusted for keel
offset (see section 4-8).
Range
Range is the depth of water displayed vertically. The
NAVMAN fishfinder has two range modes, Auto
Range and Manual Range:
· In Auto Range, the fishfinder adjusts the depth
range automatically so that the bottom is always
shown in the lower part of the screen. The use
of Auto Range is recommended.
· In Manual Range, the fishfinder shows only a
selected depth range. In areas of rapidly
changing bottom depth, such as the sea floor
around pinnacles, it can be useful to prevent
the screen from rescaling to always show the
bottom. If the bottom is deeper than the
specified depth range, it will not be shown on
the display screen.
To change the range mode, see section 3-9.
The HISTORY screen does not show a fixed distance
travelled by the boat; rather, it displays what has
passed below the boat during a certain period of time.
The actual display depends upon the boat speed and
the depth of the water.
As the boat travels through shallow water, the echoes
have less distance to travel between the objects and
Fish symbol
with depth
Selected depth range (0 to 150')
Alarms
Bottom
Zoom bar
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