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- LPA-10kV A Power Module was removed, cleaned, and re-seated with no improvement. The spare module was also cleaned and tested with seemingly no difference. The original module we have been using was replaced back into the unit.
- The cover of the lower unit was removed to inspect the internals. Everything was clean and dust free.
- In the upper unit, the 'brains' of the Bathy, boards A00107 S/N 6209 and A00108 S/N 6210 were taken out, cleaned and inspected for any damage. Resistance was measured across suspect resistors that had failed on a previous expedition. There was no difference between the boards in use and the new spares. The in use boards were installed back into the unit. New unused spares put back into the drawer. Needs to be updated to include mystery board swap and possible not working/bad firmware spares.The spare boards S/N 5921 and S/N 5920 were installed for testing. Upon installation when the software was turned on it would immediately show 'Sensor State Unknown'. It is unclear whether these boards are not functional or if they simply need a firmware upgrade/downgrade in order to work with our system. The process for updating firmware on the boards is described in the EXP. 350 tech report found here
Magnetometer
- Cable was taken from underway and spooled back onto the winch.
- The depth is still not being recorded properly but it was decided that we did not have the expertise on board to fix the internal electronics even if we opened it up and identified the problem.
- One short deployment was conducted during the transit back to Kristiansand. No issues running the instrument and collecting data besides the depth displaying as 0.
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