Note 1: All default basic ranges are restored whenever the depth unit is changed. There- fore, change the depth unit before chang- ing the basic ranges.
Note 2: Ranges must be set in numerical order. For example, if basic range 3 is 60 feet and basic range 5 is 200 feet, the basic range which can be set for basic range 4 is between 60 and 200 feet.
ZOOM RANGE: Select the range to zoom in the marker and bottom zoom modes. You may select a range between 7 and 2500 feet. Default setting is 30 feet.
B/L RANGE: The expansion width for the
2.3 Demonstration Display
The demonstration display lets you get ac- quainted with the features of the
1.Turn on the power while pressing any key.
2.Press the [▼] key. The following display appears:
DEMO MODE
OFF ON
- +: To set condition
:▼OPTIONAL MODE
Figure 2-3 Demo mode display
3.Press the [+] key to select ON.
4.Reset the power. “DEMO” appears above the depth indication on the video sounder displays and at the top
To return to normal operation, turn off the demonstration display at step 3 in the above procedure.
2.4 Bottom Level
If the depth indication is unstable in automatic operation or the bottom echo cannot be dis- played in
1.Turn on the power while pressing any key.
2.Press the ALARM key three times. The
BOTTOM LEVEL
50kHz= 80(20
200) 200kHz= 80(20
200)
▲▼ : 50kHz
- + : 200kHz
Figure 2-4 Bottom level display
3.Operate appropriate key among [▲], [▼], [+] or
4.Press the POWER key to escape.
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