NAVIS NavDP 4000. Operation Manual
NOTE!
The data of this table can be equal or have more detailed information
relative to the data displayed in the main view of the Sensors window
(when the
ALL
softkey is activated and all sensor groups are shown in
the table).
At the bottom of the window either the parameters or graph is displayed for an appropriate sensor group. Use the
Graph/Param softkey to switch between parameters and graph.
NOTE!
The graph can be provided for each of the sensor groups while the pa-
rameters can be shown for some of these groups only.
For more detailed information about the control a graph, refer to Section 5.8, page 81.
7.3.1
Gyro Sensor Details
General view of the top of the Gyro window for three gyrocompasses is shown in Figure 7.6.
Figure 7.6: Gyro Details
Processing results:
– Vessel heading;
– Yaw rate.
BIAS is to provide a continuous estimation of heading while considerable jump is detected.
The jump can appear if:
1. main gyro was changed;
2. there was no correct data for a long time and then the data appeared. In this case BIAS is calculated.
If BIAS value is high (more than 2 degrees) or raw data and filter vary by reason of invalid data (e.g. unintended
failures of the single compass) the alarm “
<
Gyro Name
>
raw data and filter discrepancy” will be generated.
If BIAS value is high it is highlighted by red color to draw your attention.
Sure that the raw data are correct and remove bias by pressing the corresponding softkey (see Figure 7.7).
Figure 7.7: Remove Bias Window
131
Doc. 000.JDP-10000-OME, rev.3.3.13/“2102.$–17A-Advanced”
