Operation Manual

CP590 Page 93
users this function allows entering of signal delay values to fine adjust the calculated
position. The user should enter delay values to fine adjust the position calculated.
Alter : Alternate Solution (TD Coordinate System)
Parameter selected by the user that is applied in the conversion of geographical coordinates
Lat/Lon to TD values. To be used if the position displayed is roughly not correct.
13.2 COMPASS
The CP590 computes compass direction from the constellation of GPS satellites. For the
CP590 to compute direction the vessel must be moving through the water unless connected
to an optional Flux Gate Compass sensor. The Compass menu allows the CP590 to
customize the following selections:
Bearings : Selects between True and Magnetic. When Magnetic Bearings is enabled, the CP590 applies the selected
Magnetic Variation (Auto or Manual, see next paragraph) to compute Magnetic Bearing.
Variation : Allows the user to select Auto or Manual. When Auto mode is selected the CP590 computes the offset
by the current GPS fixed location. Manual mode allows the user to enter in a Magnetic Variation that is
applied in the True conversion.
Calibration : Allows a user to enter in the offset for areas that the vessel may cruise instead of entering in a manual offset
for one location. This offset is useful for cruising vessels or vessels that travel internationally often.
Figure 13.2 - Compass Table
13.3 ALARMS
The Alarms menu is used to select and setup audible and visual Alarms. Available alarms
are Arrival, XTE, Depth, Anchor and Grounding Alarm.
Arrival Alarm
1
: Alerts when the vessel is approaching single destination point or when arriving at a leg in
a Route. Available selections: 0.00 to 9.99Nm.
XTE Alarm
1
: Alerts when the vessel is deviating from a defined course. Available selections: 0.00 to
9.99Nm.
Depth Alarm
1
: Alerts when the received depth Value is lower than the selected value. Available selections:
0000 to 3000ft.
Anchor Alarm
1
: Alerts when the ships moves off a selected locations by a selected distance. Available
selections: 0.00 to 9.99Nm.
Audible Alarm : Enables or disables the alarm beep.
Grounding Alarm
2
: Looks ahead of the vessels heading to see if a potential danger exists. When the Grounding
Alarm is enabled the CP590 will draw a triangle in front of the vessel on the Chart page
showing the area that is being searched as shown below. The depth and range (distance)
of the area the CP590 looks ahead for a shallow area can be set using this function.
Grounding Alarm Range: Allows setting the distance of the grounding alarm zone (the length of the sector to be
detected) among the 0.25, 0.5, 1.0 Nm selections. When a depth or any of the searched objects
is fond in the scanned area, a tick marker is printed on the relative box in the Grounding Alarm
Report page to identify which dangerous objects have been currently detected.
Grounding Alarm Report: Allows displaying a report of the dangerous objects currently detected.
NOTE
1
Please note that the alarm can be activated only if the CP590 is receiving a Fix position or
Simulation mode is activated. Otherwise an error beep is returned and the Alarm value is kept to
Off.