Section 12 Setting up Alerts  12-4 
 
12.4  Depth Alert Issuing Conditions 
[Operation procedure] 
Open the [Depth] dialogue by performing the following menu operations. 
[Menu] button → Alert → Depth 
 
In this dialogue, a threshold value for issuing [Depth Below Keel alarm] can be set. 
A [Depth Below Keel] threshold value can be set within the range from 0 m to 200 m.