SS To Do Next Visit

2018

• Replace tower aspirator fans:
  • https://catalog.orientalmotor.com/viewitems/mb-series-ac-centrifugal-fans-blowers/mb-series-50mm-centrifugal-fans-blowers
  • I need to confirm that this unit is the correct one. The one I took a picture of operates at 110VAC but I think some of the others operate at a lower voltage.
  • 7/6/18 yes all are 110VAC
• Deploy sensor refresh instruments from March.
• Buy a new HMP155 for forest floor site
• More PAR sensors and hardware for in-situ
• Buy another SI-111 SDI12 model
• Attend LI-COR training?
• Polish Battery Backup System
• Tower Top CNR4 longwave thermistor wasn't fixed on last visit after all...

'' CNR4 Tower Top
'' CNR4 Left Yellow cable (Red-White Tape)
'' CNR4 Right Yellow cable (Red-Black Tape)
'' Thermistor Hi (White Wire) -- CR1000 SE8
'' Thermistor Lo (Black Wire) -- CR1000 AG
'' Precision Resistor -- CR1000 SE8 to CR1000 VX1
'' Shield -- CR1000 Ground

• replace Loggernet computer
• Submit PRs for Summer 2018 Instrument Recalibrations
  • Vaisala HMP155s
  • MetOne 010C
  • Kipp & Zonen CNR4
• Late Fall recalibrations:

Ss soil has room on c7 for sdi12 rest or sr50a are on c3, c4 is open for other stuff. Just moved cs616 to 5v to see if that does anything. Need to confirm this doesn't mess up and create noise in signals.