Seawater Maintenance Log
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Date (yyyymmdd)Time (PST)Task
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20201104Overhaul nearly complete. SUNA reference updated for a third time.
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Been going through an overhaul the past month.
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20201013Cleaned fluoro and trans. experiencing very low flow. lots of sediment in the valve.
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20200909Cleaned fluoro & trans. Likely problem with pH wiring again. Getting back data but transmitter seems to be ok.
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20200829Swapped CTD (installed 2783). Cleaned fluoro, trans, cleared blocked tubing
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20200807Cleaned fluoro and trans. Got connection.. now just need to reimplememnt program
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20200730Cleaned fluoro, trans, Nitrate, pCO2. Still trying to figure out networking configs
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20200728Cleaned fluoro and trans. still trying to figure out networking configurations of Lingcod
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20200724Cleaned fluoro and trans. Seems to be a problem with the LINGCOD MicroSD Card & image. brought card back to lab for repair.
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20200717Cleaned fluoro, trans, CTD, pH. Power cycled LINGCOD again.. seems to be working but no coms?
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20200715Cleaned fluoro and trans. Power cycled LINGCOD pi. Still no co2 or nitrate data.. no coms with Pi. Cleaned optode.. looks like foil is impacted. Need to swap asap.
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20200709Cleaned fluoro and trans. Power cycled LINGCOD pi.. Why isn't Saturation plotting?
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20200623Leak sprang up over the weekend right before fluorometer (so fluoro, Nitrate, pCO2, & pH would've been impacted). Fixed today. Found lots of fouling in lines. Spraying water caused GFCI to trip removing power from the system. All restore today.
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20200521Cleaned fluoro and trans
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20200515Cleaned fluoro and trans
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20200513830-1030amIntake line pigged
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20200508Cleaned fluoro and trans
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20200501Cleaned fluoro & trans, SUNA, C-Sense
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20200424Cleaned fluoro & trans
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20200419~2pm localTurned water back on.
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20200417Cleaned fluoro and trans. Forgot to turn water back on. Oops!
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20200414Cleaned fluoro and trans
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20200410Cleaned fluoro and trans
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20200407Cleaned fluoro and trans
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20200402Serial adapter from Nitrate sensor failed, bringing down pCO2 with it. Replaced and its working now (need to decouple those). Cleaned fluoro and trans.
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20200330Flow blocked at flowmeter, caused pressure to flow connector from CTD outlet. Fixed. Cleaned trans
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20200326Cleaned fluoro, trans, pCO2
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20200316CTD Memory was full as of 3/11. Wiped memory today. Cleaned fluoro & trans
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20200304Cleaned trans. Flow ok.
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20200228Cleaned fluoro and trans
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20200219Cleaned fluoro and trans
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20200207Cleaned fluoro, trans, pCO2, optode, pH sensor. Cleared an obstruction from the reducing adapter between the trans and CTD.
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20200205No flow to system. Cleared input valve and cleaned transmissometer
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20200130Cleaned fluoro and trans
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20200117Cleaned fluoro and trans
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20191231Cleaned fluoro, trans, and pCO2 sensors
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20191217Cleaned fluoro and trans
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20191217SUNA #1111 updated the reference with MiliQ.. there was a little bit of a drift in the signal.. see grab sample sheet for details
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20191210Updated pH raw conversion function and back corrected to 11/27
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20191206Calibrated pH (single point) to Dickson TRIS bufferUTC 1855 to 1907
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20191203Cleaned fluoro and trans. Someone had turned the water off to the sensors. Got it flowing again.
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20191127Repaired wiring to pH circuit (corroded & broken analog wire.. red)
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20191126Cleaned fluoro and trans. Suspect wiring is the issue with pH signal
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20191122Cleaned fluoro and trans. pH probe doesn't like being upside down.
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20191115Cleaned fluoro, trans. Unclogged line. whats up with pH signal?
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20191108Cleaned fluoro, trans, co2, SUNA, optode, CTD, and pH
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20190926Cleaned fluoro, trans, co2, SUNA, optode, CTD, and pH
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20190919Cleaned fluoro and trans
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20190827Cleaned fluoro, trans, pCO2.
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20190820Cleaned fluoro and trans
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20190807Cleaned fluoro and trans. Calibrated Durafet with Dickson Standard
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20190730Cleaned fluror and trans. Begin conditioning new Durafet III pH electrode in seawater
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20190717Cleaned fluoro and trans
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20190709Cleaned fluoro, trans, optode, CTD, Nitrate, pCO2 sensors
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20190709Several power outages over the long weekend created data disruptions
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20190628Cleaned fluoro and trans
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20190620Cleaned fluoro and trans
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20190614Cleaned fluoro and trans
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20190607-10Bad flow to system
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20190603Cleaned fluoro and trans
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20190530Cleaned fluoro, trans, optode, pCO2 sensors
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20190529Cleaned fluoro and trans
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20190514Swapped CTD for unit with fresh calibration
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20190506Cleaned pCO2, trans, fluoro, Nitrate, optode
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20190502Rinsed C-sense membrane with fresh water.
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201905011130Cleaned fluoro, trans, flushed pCO2
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20190402Cleaned fluor and trans
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201903261000CTD memory full. Cleared. Cleaned fluoro and trans.
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20190319Swapped optode 1921 for 1238. 1238 has a fresh calibration. Deployed C-Sense with new flow cell.
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201902191200Cleaned fluoro, trans, optode, SUNA.
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20190129915Cleaned fluor and trans.
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201901161145pCO2 sensor brought into lab, rinsed with freshwater and air-dry. Looks like water under the membrane. Emailed Turner.pCO2 sent back to manufacturer on..
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201901152000pCO2 drifted up to 1800 from 600ppm. Unknown reason.
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20190115Swapped SUNA 1112 for SUNA 1111.See grab sample spreadsheet for cal check notes
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201901141600Cleaned fluoro, trans, pCO2, SUNA, optode, and pH sensors
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20190111Odd fluctuations in DO/%saturation in SWI also seen in the old "industrial seawater" DO sensor. Suggests an issue with backwashing or air leaking into raw seawater line. I don't see that happening in the Aquarium Room tho.
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201901091145Cleaned fluoro and trans; really low flow.. adjusted to 3lpm
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20180107Checked flow.. a little low but ok. Adjusted to 2lpm
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201812281415Cleaned fluoro and trans
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201812211200Cleaned fluoro and trans
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201812141100Cleaned fluoro, trans, optode, pH, SUNA, pCO2 sensors.
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201812031115Cleaned fluoro and trans.
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2018111915:00Cleaned fluoro and trans
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20181108pH sensor calibration checked.. ok. Kendra picked up the IFCB
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20181102Calibrated pH with a Dickson standard. Took grab sample for pH analysis and another grab sample for Nitrate. Deployed IFCB.
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201811011140Cleaned fluoro and trans. Deployed new Durafet pH probe (replaced under warranty)
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201810251400pCO2 sensor redeployed
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201810251000Cleaned fluoro, trans, SUNA, optode
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20181017Cleaned fluoro and trans
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20181012Cleaned fluor, trans, SUNA
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20180920Cleaned fluoro and trans
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20180827Cleaned fluoro and transmission. Sent pCO2 sensor back to Turner for inspection. I suspect Durafet electrode has failed.
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20180824pCO2 readings are not believed to be accurate. Sensor placed in bucket of shallow freshwater to equilibrate with ambient pCO2. It stablized around 1200ppm over the weekend.
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20180824pH probe flatlined after severa days of highly erratic output.
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20180821Calibrated pH with a Dickson sample.
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20180820Installed new durafet ph electrode
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201808021200Cleaned, SUNA, fluoro, trans, optode, CTD, pCO2
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20180619930Cleaned fluoro and trans
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201806111130Cleaned fluor and trans..