17-9  Section 17 Setting up Alerts 
 
 
 
 
 
Automatic compensation of entered values 
The threshold values must satisfy the following conditions. 
• Shallow Contour ≤ Safety Contour ≤ Deep Contour 
• Shallow Contour ≤ Safety Depth ≤ Deep Contour 
Safety Contour and Safety Depth are not related. 
If there is any contradiction in the entered values, the following automatic compensations will be 
performed. 
 
Condition  Compensation 
Safety contour value (or Safety Depth value) < 
Shallow contour value 
Replace the Shallow contour value with the Safety 
contour value (or Safety Depth value) 
Deep contour value < Safety contour value (or 
Safety Depth value) 
Replace the Deep contour value with the Safety 
contour value (or Safety Depth value)