Furuno CI-68 - Manual (Page 32)

2. INTERPRETING THE DISPLAYS
2-12
Tide for three layers/tide differential
(4) Depth setting error
1 2m
2.3 140
TIDE SPD/VECTOR kt
(3) Echo from measuring layer
is abnormal
2.3 140
TIDE DIFF kt
3) Echo from measuring layer
is abnormal
1 ® 2
Tide vector, speed, graph and
course plot displays Text and echo level displays
(4) Depth setting error
1 2m
2.3 140
TIDE SPD/VECTOR
(3) Echo from measuring layer
is abnormal
kt
2.3 140
TIDE DIFF
3) Echo from measuring layer
is abnormal
1 ® 2
Tide vector, speed, graph and
course plot displays Text and echo level displays
kt
Tide and tide differential error displays
(3) Displayed when echo for a measuring layer is not present. The readout for the offending
measuring layer is not reliable.
(4) Displayed when the depth setting for a measuring layer is improper. The readout for the
offending measuring layer is not reliable.
Improper depth setting conditions
• Depth in ground tracking mode is less than 10 m.
• Depth setting is more than 75% of actual depth.
• Echo cannot be obtained because of air bubbles, etc.
• Echo for set depth cannot be found because depth has become deeper than set
depth.