Northstar Explorer 435/438 Installation and Operation Manual14
3-5 Setup > Logs
Press MENU twice to display the Setup menu,
then select Logs:
The values can be changed independently of
each other. These log values are saved when the
unit is turned off.
Reset trip dist (Explorer 438 only)
This resets the trip distance to zero.
Reset total dist (Explorer 438 only)
This option resets the total distance to zero.
Reset engine hours
Use this option to reset the engine hours to zero.
This can be useful after an engine service or to
count the engine hours between service intervals.
c Alarm Beeper Alarm condition is
Name Cycle met when the:
Too 1/5 sec depth is less than
shallow the alarm trigger value
Too 1/2 sec depth is greater than
deep the alarm trigger value
Fish 1 short echo matches the fish
beep profile selected by
fish filter
Temp. 1/2 sec temperature equals
the alarm trigger value
Temp. 1/2 sec rate of change of
rate temperature equals the
alarm trigger value
Low 1/2 sec battery voltage is
battery less than the alarm
trigger value
Low 1/2 sec fuel remaining equals
fuel the alarm trigger value.
3-6 Setup > Alarms
Press MENU twice to display the Setup menu,
then select Alarms:
Trigger settings can be defined to suit the boat
and individual preferences as follows:
Alarms can be set (enabled) to automatically detect
certain conditions, such as the water being too
shallow. Alarms that are enabled are shown as black
icons in the Alarm status box on the sonar displays.
When an enabled alarm is triggered, the beeper
sounds, an alarm message is displayed and the
alarm status icon is shown in red.
Press or MENU to acknowledge the alarm, stop
the beeper and close the alarm window. This
does not disable the alarm.
Alarms automatically re-enable
The Too shallow, Too Deep and Low
battery alarms automatically re-enable when
the value moves outside the alarm trigger setting.
The Temperature alarm automatically
re-enables when the temperature is more than
0.45°F (0.25°C) above or below the alarm trigger
setting.
The Temperature 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.
Flashing Light and/or External
Beeper (Explorer 438 only)
If a secondary alarm indicator is required, a flashing
light and/or external beeper can be installed. These
can be positioned anywhere suitable on the boat.
See section 6-4 Wiring options.