Artemis BP00707, Руководство пользователя

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6.3 Recommended Operational Procedures
6.3.1 Searching Within 30 Metres of a Known Target Position
The following operational procedure is recommended when searching within 30 metres
of a known seabed target position…
 Check that Artemis has been prepared in accordance with the instructions in this
manual, and the pre-dive checklist above, and the Sonar is fitted.
 Cycle through the Artemis displays to the Sonar Application, then set the sonar to a
40m range scale, 50% gain.
 Diver leaves surface and descends to seabed.
 When the Artemis console is submerged, the Dive Log file start recording (if the
immersion sensor is enabled) – alternately, start logging using the “Start Dive”
option from the Settings display.
 When ready to proceed, diver holds Artemis approximately 0.5m above seabed at
chest height and holds the unit on a steady bearing. If possible, the diver should
kneel on the seabed with Artemis horizontal and at chest height.
 The Diver should let Artemis scan for at least 3 sweeps on each bearing. The centre
bearing can be changed by the diver at any time but 45 degree changes are
recommended.
 When the diver believes the target has been acquired, he closes the range. The
target should be kept in the centre of the Sonar Display.
As a rule of thumb;
o
If the target is presenting on the left hand side of the Sonar display, the
Artemis console should be trained left which will bring the target to the centre
of the Sonar Display.
o
If the target is presenting on the right hand side of the Sonar display, the
Artemis console should be trained right which will bring the target to the centre
of the Sonar Display.
o
The Navigation Application, Status Bar digital readout or Magnetic Compass can
be used to assist bearing guidance.
 With the target in the centre of the display, the diver continues to close the range
until either the target becomes visual (visibility permitting) and/or the target can be
seen on the minimum range scale (1m) of the Sonar Display.
 In bad visibility care should be taken to ensure that a safe distance is observed
from the target where interaction with the same could compromise the safety of the
diver.
For further information on using the Sonar, please refer to sections 4.5 (Sonar
Application) and 7 (Understanding Sonar Imagery).