DMTA-10084-01EN, Rev. 2, November 2018
Chapter 7
84
Figure 7-10 Minimum depth alarm marker
To set a minimum depth alarm
1. Activate the gate in the Gate1 or Gate2 dialog box (see “Navigating Dialog Boxes
and Setup Pages” on page 19 for details on using the dialog boxes.
2. Use the G(1 or 2) Start, Width, or Level parameters to position the gate to cover
the desired area.
3. Select G(1 or 2) Alarm, and then select the Min Depth alarm condition.
4. Turn the adjustment knob to set the Min Depth value.
The minimum depth alarm value must be greater than the gate start value and
less than the gate width value.
The minimum depth alarm is not available when certain special functions are
enabled.
7.9.2.2 Minimum Depth Alarm with Gate Tracking
When gate tracking is active, the tracking gate moves side-to-side, tracking the
position of the echo in the nontracking (first) gate. With gate tracking active, the Min
Depth alarm threshold is relative to the position of the echo in the nontracking gate
(first gate).
Minimum depth alarm marker
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