Northrop Grumman Sperry Marine VisionMaster FT, User Manual

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Sensor Management Radar/Chart Radar User Guide
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Depth Source Values
The Depth sensor provides information on the
current depth values:

depth below keel (DBK)

depth below transducer (DBT)

depth below waterline (DBW)
The specific sensor information available will depend upon installed and
configured sensor devices.
Set and Drift Values
The data for Set is shown in degrees; the data
for Drift is shown in knots (kn).
When
Computed is selected for the sensor
data source for Set and Drift the system
continually computes the values based on
other active types of sensor data received
conventionally (via an interface).
When incorrect computed values are
suspected they can be manually set to zero or to an estimated manual
value. The system will re-calculate accurate Set and Drift values after
accurate sensor data has been restored.
To change the Set and Drift sensor source or values do the following:
1. Tick the button next to the source. Whenever the sensor source is
about to be changed a window prompts to confirm the change.
2. To confirm click the Yes button, or to return to the previous sensor
source and value click the No button.
If no sensor source is currently available the user can enter manual data.
CAUTION: MANUAL SENSOR DATA
Using manual data is not the normal mode of operation. A sensor
device should be selected as soon as valid data is available.