4. ADJUSTMENT
4-5
COURSE CALIB
Calibrate course here when the course value in ground tracking mode is different from the
external GPS navigator reading though BEARING CALIB on the previous page is done
correctly. The setting range is -30 to 30 °. The GT and NAV values next to COURSE CALIB
show the calibrations of CSE CALIB MODE in below.
CSE CALIB MODE
Choose tracking mode to use to calibrate course so that it is the same on both the current
indicator and GPS navigator.
GT:
Enter suitable value so ship’s track in the ground tracking mode is the same as
that on the NAV mode.
NAV:
Assuming that the tide near own ship is constant, offset it so tide in fore-aft
direction is constant for ten minutes.
MANUAL:
The course manually entered at NAV in COURSE CALIB.
CSE CALIB EXEC
Calibrate course. Choose GT or NAV from CSE CALIB MODE and then choose YES here.
When ground tracking is obtainable (Depth is approx. 3 to 180 m)
1. Press the [TRACK MODE] key to choose the ground tracking mode. For details, see
paragraph 1.6 in the operator’s manual.
2. Press the [MENU] key to open the menu.
3. Press
▲
to place the cursor on the menu title area.
4. Press
►
to choose INSTALLATION.
5. Press any function key (F1, F2 or F3) to unlock the INSTALLATION menu.
6. Press
▼
to choose the sub menu title area.
7. Press
◄
or
►
to choose CALIB.
8. Press
▲
or
▼
to choose CSE CALIB MODE.
9. Press
◄
to choose GT.
10. Run the vessel at a speed of about 10 kn, keeping heading constant. To minimize gyro
speed error, it is desirable to turn along parallels; namely, eastward or westward.
11. Press
▼
to choose COURSE CALIB EXEC.
12. Press
►
to choose YES.
13. Press any function key to start the calibration. As soon as you press a function key, “0.0”
on the COURSE CALIB line should be shown in reverse video. After you have traveled 2
nm, the display will show the course calibration angle (result of the calibration) in normal
text. (This value is not retained in the memory; it is reset to zero when the power is
turned off.)
14. Press
▲
to choose COURSE CALIB.
15. Press
◄
or
►
to enter the value.
16. Press
▼
to choose CSE CALIB MODE, and then press
►
to choose MANUAL.
COURSE CALIB input value is only effective when MANUAL is selected on the menu.
Содержание CI-88
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