Chapter 13.  Appendix C – Deployment check-list

Operation

Fully charge the batteries inside the Aquarius (see Section 5.4).

Screw the charger pressure cap back in.

Attach the ballast to the Burn-Wire system (see Section 8.2 page 65).

Connect the Seacon Hummer series connector on the Aquarius and the Ethernet and console connectors to the Deck Unit.

Remove the magnetic off plug and fit the vent cap with the O-ring and the sacrificial anode / If the cap with the O-ring is already in place and the system is already on, switch PoE on, reset it using the System Reset button in the OBS On Deck tab of OBS Command & Control widget.

In the Deck Unit, switch the PoE on.

Check PTP lock either from the LPC web page (Status tab, PTP status section, PTP stability cell) or from the OBS Command & Control widget /Pre-Deploy tab / Timing Status. If No Master is shown in the above fields, check PTP network configuration in the LPC (see Section 7.2.2) or GPS fix in the PTP server.

Check whether recording of non FR channels for Sensor 0 and Sensor 1 are disabled in the LPC web page / Data Record tab (see Section 7.2.4).

Select all the FR channels on Sensor1 to be recorded from the LPC web page / Data Record tab.

If changes were made in the LPC web page / Data Record tab, reboot the LPC.

In the LPC web page / Trigger tab, set as trigger source S1RatioZFR and choose appropriate values for STA/LTA parameters. Set the Whalesong Sender as trigger destination. Set the threshold to 0 (see Section 7.2). This will disable triggering until the OBS is on the seabed. At that point this parameter can be modified via acoustics, if a buoy unit is present.

Download the Dataless file from the Storage tab of the LPC web page.

Set the bottom acoustic modem address in the Network tab of the LPC web page (Local modem address) and take note of it. In case of an installation with a buoy unit on the surface, set also the surface acoustic modem address (Remote modem address in the LPC web page, see Section 7.2.6).

In the LPC web page, Network tab, set temporarily the acoustic modem Power level & gain to Suitable in air (see Section 7.2.6)

Test the Burn-Wires via acoustic command from the Recovery tab in the OBS Command & Control widget (see Section 7.1.3.5).

In the LPC web page, Network tab, set the acoustic modem Power level & gain to a depth suitable for the specific installation (see Section 7.2.6).

Quick format the SD cards either from the LPC web page (Storage tab) or from the Pre-Deploy tab of the Discovery OBS Command & Control widget (Format button).

Check live data from sensors in the Discovery Live View (see Section 7.1.2).

Test Burn-Wires from ULPD using the Discovery OBS Command & Control widget, OBS On Deck tab, Test Burn Wire button (see Section 7.1.3.2).

Test the satellite tracker and LED strobe activating them from the Discovery OBS Command & Control widget, OBS On Deck tab, Test Satellite button.

Set the time for the backup Burn-Wires that would be activated by the ULPD timer. Use the Discovery OBS Command & Control widget, OBS On Deck tab for this task (see Section 7.1.3.2).

If the Offset in OBS Command & Control / OBS On Deck tab / Timing Status is not 0ms force a time synchronization using the button Force Sync.

Wait until the message Good to go is displayed in the OBS On Deck tab in OBS Command & Control (see Section 7.1.3.2).

DEPLOY the Aquarius either from the LPC web page (see Section 7.2.7) or from the Discovery OBS Command & Control widget, OBS On Deck tab, Deploy button.

Switch off the PoE in the Deck Unit and unplug the Seacon Hummer series connector.

Plug the Seacon Hummer series dummy cap.

Fit the central block of buoyancy and mount the lifting frame.

Deploy the Aquarius in the water.

Range the Aquarius while is descending towards the seabed. For this task, you could either use the Modem Ping button in the OBS Command & Control widget / Post-Deploy tab or the OBS location widget (see Section 9.2.2.1).

Click on the Status button in the OBS Command & Control widget / Post-Deploy tab to show the Aquarius depth (inferred from the Keller pressure sensor data) and other SoH info.

When the Aquarius will have reached the seabed, wake up the LPC asking for the Aquarius ID or for the SEED ID using the OBS Command & Control widget, Post-Deploy tab.

Force a centring via acoustics using the button Perform Recentre in the Post-Deploy tab of the OBS Command & Control widget (see Section 43).

Check re-centring status using the button Get Recentring Status in the Post-Deploy tab of the OBS Command & Control widget.

When centring is completed, flush data from the ULPD to the LPC microSD cards using the Flush Data button in Post-Deploy tab of the OBS Command & Control widget.

Retrieve data via acoustic comms to check sensor performance (see Section 7.1.3.4).