AML Oceanographic AML-3 User Manual page 16

a. Note that an instrument may be deployed without a GPS lock. Data will still be
logged, but the location data will be absent.
b. In the absence of a GPS lock, an instrument may be manually provided with GPS
coordinates in the Instrument Settings page.
3. If settings are correct, then ensure the instrument is ready for immersion by confirming
that the USB-C connector cover is in place. Do not deploy the instrument without the
USB-C cover threaded completely onto the connector.
4. The instrument may be deployed at any time. If connected via WiFi, there is no need to
select the Disconnect button in Sailfish.
5. Lower the instrument into the water until its shackle sits just below the water line and its
indicator LED is visible. In most applications, the instrument is suspended by its shackle
from a downrigger, crab puller, or other mechanical device.
6. By default, the instrument will create a new log file and begin to record (log) data
automatically upon water detection.
a. Water detection is achieved by monitoring the measurements of an installed
Sound Velocity or Conductivity sensor. This behaviour is configurable through
advanced commands.
7. When in water and recording data, the instrument's indicator LED will flash, confirming
operation.
8. Hold the instrument submerged just below the surface of the water for 60 - 90 seconds
to allow the instrument to thermalize. The instrument may then be lowered to the desired
depth.
9. If the instrument was connected via WiFi then its connection to Sailfish will be lost (by
default, the instrument will turn its WiFi off when in water). Sailfish will recognize this
action and sit idle, awaiting for the instrument to return to the surface.
10. When the desired depth is achieved, retrieve the instrument and pull it completely out of
the water. The instrument will close its log file when it detects that it is out of water.
11. When out of water the instrument will turn its WiFi back on. Sailfish will automatically
detect the return of the instrument and connect.
a. Note: If the instrument's WiFi connection was manually disconnected from
Sailfish prior to deployment (by pressing Disconnect ), then the instrument will
need to be manually re-connected to Sailfish by the user.
b. If re-connecting via USB-C, dry the instrument prior to removing the USB-C
waterproof cover.
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