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ERROR
Status display
When a source data for calculation and display seems to be abnormal, the following error indica-
tion appears on the display. This is to alert the operator not to rely on the related data.
No data from the Transceiver Unit.
(Red block mark above kt )
4
Invalid depth setting
(depth indication in red)
1 If data is not received from the Transceiver Unit, a red square mark appears above "kt" in the
SPEED display frame. As display data are not updated, do not rely on any data.
2 If the reference data for ship's speed measurement is missing, the "kt" in the SPEED frame is
enclosed in a red box. That is, no ground echo in the ground tracking mode, no reference water
echo in the water tracking mode or no speed (position) data in the nav-aided mode. Do not rely
on the ship's speed/course and all tide speed/direction display.
3 If echo from a particular layer is too weak the unit denotes it by circumscribing "kt" in the TIDE
frame in red. Do not rely on the tide speed/direction of the layer.
4 If an invalid measuring depth (*) is set, the depth value for the layer appears in red.
(*) Measuring depth of shallower than 13 meters or deeper than 3/4 of seabed depth is regarded
as invalid depths.
1
SPEED
12.3
SE
kt
DEP
TIDE
1.2
1
N
kt
5
0.8
2
NW
kt
18
0.5
3
NE
kt
30
AVERAGE
FUNDAMENTAL DATA SECTION
No reference data for ship s speed.
( kt in red box)
2
COURSE
MODE
GT
135 ¡
DIRECTION
0 ¡
20
320 ¡
45 ¡
N
3
No echo from the layer.
( kt in red box)
COMPASS
270.0
17 : 41 : 00
TRIP
0.00 NM
0
10
10
20
3¡
0.4 kt
3-5
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