Alarms - Si-tex Explorer Nav Pro User Manual

12. Alarms

The chart plotter provides alarms for various purposes: navigation, fishing, engine and AIS
monitoring. You can specify the desired alarm range for most of the functions.
To open Alarms page:
1. Press [MENU] on the map page
2. Select "Alarms"
3. Press [ENTER]
An alarm is triggered when the alarm condition happens. An alarm shuts down when the
alarm condition disappears. You can choose for alarm to appear with sound or without it.
1. Open Alarms page
2. Select "Audible Alarm"
3. Press [ENTER]
When audible alarms are triggered, you can turn off the sound by pressing [CLEAR]. Alarm
bar will remain visible until the alarm condition is released.
When two or more alarms are activated, the messages cycle on the alarm bar.
External alarm
The External alarm is a signal triggered by the plotter on a specific wire, which can be used
by an external device (as a hooter or a buzzer). When any alarm condition occurs the pin is
switched from High Impedance to ground. To switch on the external alarm function:
1. Open Alarms page
2. Select "External Alarm"
3. Press [ENTER]
Navigation alarms
Navigation alarms are presented with the following alarms:
● Grounding alarm: scans map area within 1 nautical mile range in front of your course
line (plus 8 degrees to the left and 8 degrees to the right direction) in order to find
objects dangerous for navigation, such as shallow water (depth areas), intertidal areas,
land, rocks, obstructions and shoreline constructions. You can set the minimum depth
value for this alarm on Alarms page.
● Depth alarm: is automatically triggered when the depth value read by the depth
transducer is too shallow.
● Anchor alarm: is triggered when the ship moves off the current ship's position location.
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Chart Plotter - User Manual