rabbit, rabbit, rabbit
High overcast with wind in the morning, just a few sprinkles
Onsite: Matt, Mack, Steve
(This being written at noon, while the morning's activities are fresh):
- Replaced t0 batteries, but found that the Victron wasn't pulling any power from the solar panels (despite measuring 40V open circuit). Solved by replacing the Victron. Strange!
- Went down the entire line, setting Victron battery type to LiFePO4. Also did firmware upgrades, so all are now at 2.44/1.61. Halfway through, started checking load setting, which should be "Battery Life". Found one at "Always On", that I changed.
- Mack and Chenning worked on the DTS power. Found that one solar panel connector only had 2 pins (not 4), hence strange solar inputs in the past. This connector is now not being used. Mack is now using 2 Victrons in parallel to charge the batteries, with each Victron powered by 3 panels in parallel (none in series anymore). One test found that the DTS startup current is 66A (Mack has a digital clamp-on meter). They are going to try a total rewire using thicker gauge cable.
- Matt spent the morning rescanning tt, now that we extended the 7m boom (and moved the TRH up by 5.2cm).
- I added the 4th hotfilm, so all should be running now. Now that I think about it, not having power at t0 (and thus the LabJack), probably explains why ustar was restarting hotfilm data collection last night.