X515C DF & X510C Manual - Lowrance
X515C DF & X510C Manual - Lowrance
X515C DF & X510C Manual - Lowrance
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lower engine unit can be several feet. In those cases, an inexact depth<br />
reading could result in grounding or striking underwater structure.<br />
The Keel Offset feature eliminates the need for the navigator to mentally<br />
calculate how much water is under his keel.<br />
Keel Offset lets you calibrate the digital depth: chart depth scale, chart<br />
cursor depth and fish symbol depth displayed on the screen. To calibrate<br />
the depth indicators, first measure the distance from the face of the transducer<br />
to the lowest part of the boat. In this example, we will use 3.5 feet.<br />
We enter this as a negative 3.5 feet, which makes the depth indicators perform<br />
as if the transducer's lower in the water than it really is.<br />
1. Press MENU|MENU|↓ to SET KEEL OFFSET|ENT.<br />
2. The Keel Offset dialog box appears. Press ↓ to change the plus (+)<br />
sign to a minus (–) sign.<br />
3. Press → to the first number, then press ↑ to change the number to 3<br />
4. Press → to the second number, then press ↑ to change the number to<br />
5, then press EXIT. The depth indicators now accurately show the depth<br />
of water beneath the keel.<br />
NOTE:<br />
If knowing the exact depth of water beneath the keel is less important,<br />
you can calibrate the depth indicators so that they show the actual<br />
water depth from surface to bottom. To do this, first measure the<br />
distance from the face of the transducer up to the surface (the water<br />
line on the boat). In this example, we will use 1.5 feet. This will be entered<br />
as a positive 1.5 feet, which makes the depth indicators perform<br />
as if the transducer's higher in the water than it really is.<br />
1. Press MENU|MENU|↓ to SET KEEL OFFSET|ENT.<br />
2. The Keel Offset dialog box appears with a plus (+) sign at the<br />
front of the box.<br />
3. Press → to the first number, then ↑ to change the number to 1.<br />
4. Press → to the second number, then ↑ to change the number to 5.<br />
Press EXIT to return to the previous page. The depth indicators now<br />
accurately show the water depth from surface to bottom.<br />
Set Language<br />
This unit's menus are available in 10 languages: English, French, German,<br />
Spanish, Italian, Danish, Swedish, Russian, Dutch and Finnish.<br />
72
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