Calibration 29
Depth
Tocalibrate the depth functions:
1. Withthe User calibration entry screen displayed,press the dep th key.
2. Referringto the User calibration - depth illustration,carry out the cal-
ibrationprocedure. Use the de pth keytocyclefromscreentoscreen
andthe trip and rese t keysto set the required values at each screen.

Depth units

Youcan set either FEETor METRES.

Depth offset

WARNING:
Theuse of incorrect offset values could result in misleading
depthinformati on being displayed with a consequent risk
ofrunning aground.
Depthsare measured from the transducer to the sea bed. However, you
canuse the depth offset screen to apply offsets to this distance, so t hat the
displayeddepth reading represents either the depth from the keel or the
User calibration - depth
From User calibration
start screen
depth
depth
depth
Set depth
units
Set depth
offset Shallow
alarm lock
D4417-1
81040_1.book Page29 Thursday, November7, 2002 10:21AM