"Field","Meter A record","Meter B record","Interpretation"
"Sample ID and observation time","","","Same identified sample; preserve original records"
"Original EC display and unit","","","MANUAL; keep value with mS/cm or original unit"
"Measured sample temperature and unit","","","Actual liquid temperature; separate from reference temperature"
"Temperature stabilization observation","","","Document according to the instrument procedure"
"Compensation on/off status","","","Read specific instrument setting or manual; do not assume"
"Reference temperature and unit","","","Named reporting basis; blank means unresolved"
"Coefficient and its exact units","","","No default supplied; preserve percent/degree or fraction/degree convention"
"Documented compensation model","","","Linear or other named model; cite manual/version"
"Model applicability to this solution","","","Evidence needed; do not substitute the article fictional coefficient"
"Instrument model and manual reference","","","Keep device and mode traceable"
"Other measurement question","","","Calibration, contamination, extraction or TDS conversion kept separate"
"Pair classification","","","Like-for-like / different reporting bases / unresolved, with reason"
"Next investigation before dosing change","","","Record who will resolve discrepancy; no controller changes from this card"
"Use","One column per meter for the same sample. MANUAL only. Import UTF-8 comma CSV, widen columns, wrap text and save a working copy. Preserve original displays. No calculation, default coefficient or dosing recommendation.","","MANUAL; no formulas or automatic approval"
"Source context","https://knowledge.hannainst.com/en/knowledge/ec-why-do-i-need-temperature-compensation-for-measuring-ec ; https://blog.hannainst.com/conductivity-mistakes ; https://www.usgs.gov/publications/new-method-electrical-conductivity-temperature-compensation","","Source interpretation and limits are explained in the accompanying article."