I’m a field tech doing monthly service on YSI EXO2s and vented Level TROLLs (15-min intervals), and my standard loop is inspect desiccant, clean sensors, verify time sync, run two-point checks, then download and flag drift in the field log. Looking for a short CE course that teaches maintenance-driven QA/QC with calibration traceability and pre/post checks — ideally step-by-step guidance that links field notes to post-processing; any recommendations?
CUAHSI’s one‑day Continuous Sensors workshop was the best match I’ve taken — step‑by‑step pre/post checks, calibration traceability forms, and examples that map to EXO2s and vented Level TROLLs on 15‑min intervals (https://www.cuahsi.org/education). > log. Looking for a short CE course that teaches maintenance-driven QA/QC with calibration traceability and pre/post checks Same need here — CUAHSI covered that and gives a completion certificate you can claim for CE. , vendor webinars can be thin, but YSI’s EXO University and In‑Situ Academy are solid for two‑point checks and desiccant/vent care; just confirm CEUs with your board first.
On EXO2s, I started recording the standard temperature and a 90‑sec stabilization note next to my ‘two-point checks’ in the field log, and it cut my false drift flags in half… For your 15‑min interval sites, I also crack the Level TROLL’s vent to atmosphere and wait for pressure to settle before download; otherwise baro lag looks like drift. If you want a quick refresher, YSI’s EXO University Maintenance & Calibration module is solid and free: EXO University | Training Program for Water Quality Monitoring Sondes and Sensors, but it won’t cover vented TROLL quirks.
I got the most bang from NWQMC’s sensors short course at the National Monitoring Conference — stepwise maintenance QA/QC with traceable cals and sample forms; check the schedule at https://acwi.gov/monitoring, but timing can be spotty so their recorded webinars fill the gap. Building on @jlee927, I also note baro at start/finish and snap a timestamped photo of the cal cup; it’s a belt‑and‑suspenders way to catch vent line issues before you flag ‘drift’.
Quick example: I started slapping a peel‑and‑stick label on the EXO2 guard after service with standard IDs, lot/expiry, and timestamp, then snap a photo into the visit folder — makes “traceability” dead simple and it helped me catch a mislabeled 1,000 µS/cm bottle once. If you want a short CE reference to pair with that workflow, USGS TM 1‑D3 has the forms and language I mirror: https://pubs.usgs.gov/tm/1D3/; not a course, but it’s as close as you’ll get in a day. Small caveat: the label adds a minute in the field, but it’s still faster than reconstructing cals later.