Calibration Logs

Calibration logs are the audit trail of every calibration applied to the device's gas and particle sensors. Each row records the calibration type, the reference period used, the resulting offset constant and factor, and an R² correlation preview.

For the calibration workflow itself, see Cloud calibration.

Calibration logs.

Filters

Filter	Description
Date/time range	Restrict the logs to a specific period.
Calibration Type	Baseline, Span, or All — see the filter options below.

·Baseline — only logs from baseline calibrations (sets the zero-current offset).
·Span — only logs from span calibrations (sets the sensitivity factor across a range).
·All — show both.

Columns

Column	Description
Date and Time	When the calibration was applied.
Type	Baseline or span.
Offset Constant	Offset constant applied after a baseline calibration.
Offset Factor	Offset factor applied after a span calibration.
Baseline Time Start / End	Period used to select the minimum reference value during baseline calibration.
Span Time Start / End	Period used to select the maximum reference value during span calibration.
R² Correlation Result	Preview of the R² assessment — how well the corrected data tracks the reference data if this calibration is applied.

The R² preview is indicative, not definitive. It's calculated on the corrected values from the selected time window; it doesn't necessarily match the full R² assessment against all historical values in the database.