Graphs - Furuno GP-280 Operator's Manual

13.3 Graphs

With connection of appropriate sensors, water temperature and depth graphs can be displayed.
13.3.1 Water temperature graph
1. Press [MENU], [0], [3] to open the Graph Display menu.
Graph Display

Set Time Span
Water Temp. Graph
Set Temp. Range
Set Ref Temp. 1
Set Ref Temp. 2
Water Depth Graph
Set Depth Range
Set Ref Depth 1
Set Ref Depth 2

↑↓←→ : Sel, Fix
MENU : Esc
2. Enter time span in two digits in the Set Time Span field. The maximum time is 24 hours.
3. Select Yes from the Water Temp. Graph field. Selecting Yes inscribes the water temperature
measurement marker (white) at present intervals, as selected at step 2 above.
Water temperature
measurement marker
4. Set the temperature range (-01°F to +99°F) on the Set Temp. Range field in a total of four
digits, and press the [ENT] key. For example, if the temperature range is 50°F to 70°F, enter
[5], [0], [7], [0], [ENT]. Use the
temperature value must be at least two degrees higher than the low temperature value.
5. Enter reference temperature no. 1 in the Set Ref. Temp. 1 field in four digits, and press the
[ENT] key. If it is 50°F, for example, enter [0], [5], [0], [0], [ENT].
02
No Yes
05 ~ 20°F
010.0°F
015.0°F
No
Yes
0100 ~ 1000 ft
0450 ft
0800 ft
Track
key to switch between plus and minus. The high
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