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CVR–010
Advanced Settings
44
8.3. Selecting Depth Reference Indications
8.3.1. Introduction
・
The CVR–010 navigation sounder is designed to indicate one of the following types of
depth information at a time, depending on whether or not transducer–related settings
(draft
* 1
and keel offset
* 2
entries) were made in advance:
- Depth below Transducer face ( DBT , initial setting)
- Depth below Surface (
DBS , depth below waterline, with transducer draft entered)
- Depth below Keel (
DBK , with keel offset entered)
・
Depth data will be stored in IEC 61162–1/NMEA–0183 DPT format, i.e. DBT value with
separate draft and/or keel offset regardless of whether DBS or DBK indication is
chosen). See Section 10 (Outputting Stored Data for PC–Based Applications) for details.
* 1
:
See paragraph 8.2.
* 2
:
See paragraph 8.10.7.3.
8.3.2. Selection Procedure
(1) Press

, displaying the MAIN MENU .
Figure 8-5 Selecting Depth Reference Indications
(2) Select “ 2:DEPTH REFERENCE ” by
pressing

or

/

, followed by

.
・
This turns on the associated submenu,
as shown at right. The options are
self–explanatory.
・
Option “ 2:BELOW TRANSDUCER ” is
initially selected.
(3) Select the desired indication by pressing
the appropriate numeric key.
- BELOW SURFACE : Indicates the current depth value being referred to the
waterline. The correct transducer draft must be entered via
steps in paragraph 8.2 to utilize this indication.
- BELOW TRANSDUCER : Indicates the current depth value being referred to the face
of the transducer.
- BELOW KEEL : Indicates the current depth value being referred to the keel.
The correct keel offset must be entered via steps in
paragraph 8.10.7.3 to utilize this indication.
(4) Press

to complete the selection, and then

to exit the menu system.
(5) Enter the appropriate transducer draft (paragraph 8.2) or keel offset (paragraph 8.10.7.3),
if “ 1:BELOW SURFACE ” or “ 3:BELOW KEEL ” is chosen.
・
Alarm Depth Indication:
The reference of the alarm depth setting will change accordingly as you choose the
desired depth reference, as in the example below:
Figure 8-6 Alarm Depth Setting Indications – Example
MAIN MENU
1:TRANSDUCER DRAFT
2:DEPTH REFERENCE
3:ECHO THRESHOLD
4:NOISE REDUCTION
5:WHITE LINE
6:HISTORY SCALE
7:SIMULATION
8:ECHO DISPLAY
9:INSTALLATION SETTINGS
2:DEPTH REFERENCE
1:BELOW SURFACE
2:BELOW TRANSDUCER
3:BELOW KEEL