Furuno RD-50 Operator's Manual page 29

3. Press or key to select [Water TEMP Graph] and press the ENT key.
4. Press or key to select [DISP1 (2, 3, 4 or 5)], which shows the water temp
graph screen, and press the ENT key.
5. Press or key to select [Range] and press the ENT key.
6. Press or key to select [5°C (10°F)], [10°C (20°F)] or [20°C (40°F)] then press
the ENT key.
7. Press or key to select [Period] and press the ENT key.
Display options
Water TEMP Graph options
Range options
Period options
2. MENU
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