Silva SEA DATA Manual De Usuario

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Sea Data 
English 
 
11 
 
True distance from sea chart 
Log trip  counter distance 
The current calibration value 
New calibration value 
 
 
If you suspect that there is water flow, drive the boat in both directions and divide  
the trip distance by two. 
To enter the new calibration value press KEY increase/decrease with  
UP/DOWN, move to the next figure with MODE and confirm with KEY
 
4.2.6. 
C15 Unit for depth (Unit M) 
The unit for depth is selectable between metres (M), feet (FT) or 
fathoms   
(FA). To change unit press KEY and select unit with UP or DOWN 
and  
confirm with KEY
 
 
4.2.7. 
C16 Adjusting depth (0.00 ADJ) 
It is possible to adjust the depth reading plus/minus 99.9 m. This 
feature makes it possible to get the reading from either the keel or 
the water surface. 
Example: Your boat has a draft of two metres and the transducer is  
mounted one half metre below the water surface. 
1. If you want the reading from the water surface you have to add 0.5 m 
2. If you want the reading from the keel you have to subtract 1.5 m 
 
Note! Calibration should be carried out in the same unit chosen for dis-
play. 
 
4.2.8. 
C17 Unit for temperature (Unit °C) 
The unit for temperature is selectable between Celsius (°C) or 
Fahrenheit (°F). To change unit press KEY and select unit with UP 
or DOWN and confirm with  
KEY
 
4.2.9. 
C18 Temperature adjustment (0°C TMP) 
The temperature reading can be adjusted for accurate reading 
plus/minus nine  
degrees. 
 
4.2.10. 
C19 Unit for trip and total distance (Unit NM) 
The unit for distance is selectable between Nautical Miles (NM), Kilome-
tres  
(KM) and Miles (MI). To change unit press KEY and select unit with  
UP or DOWN and confirm with KEY