Furuno FCV-582L manual Demonstration Display, Bottom Level

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 bottom-lock display can be selected to 10 feet or 20 feet. Default setting is 20 feet.

2.3 Demonstration Display

The demonstration display lets you get ac- quainted with the features of the FCV-582L without connecting the transducer. You can activate it as follows:

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 right-hand corner on the data and graphic displays.

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 reddish-brown by adjusting the gain controls in manual operation, you may adjust the bottom echo level detection circuit, for both 50 kHz and 200 kHz, to stabilize the in- dication. Note that if the level is set too low weak echoes may be missed and if set too high the depth indication will not be displayed.

1.Turn on the power while pressing any key.

2.Press the ALARM key three times. The start-up screen appears and shortly there- after the BOTTOM LEVEL display ap- pears.

BOTTOM LEVEL

50kHz= 80(20200) 200kHz= 80(20200)

▲▼ : 50kHz

- + : 200kHz

Figure 2-4 Bottom level display

3.Operate appropriate key among [▲], [▼], [+] or [–] to set level.

4.Press the POWER key to escape.

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