All calibration data is confidential. DMA is committed not to share this data, but to use it internally for statistical purposes only.
DMA-OEM Calibration Procedure
Specifically developed for ADTS periodic calibrations including the following features:
- As found readings (according to the instrument);
- 1 cycle for the Static line, from 5 to 11 points of measure (according to the instrument) with increasing and decreasing pressure;
- 1 cycle for the Pitot line, from 5 to 7 points of measure (according to the instrument) with increasing and decreasing pressure;
- 2 cycles for the AoA line (if available) with 6 points of measure;
- Calibration covering complete instrument reading scale;
- Uncertainty calculation not performed.
ISO 17025 Calibration Procedure
Performed in our Accredited Calibration Laboratory no. 00145 (accreditation) according to international EURAMET CG-17 guidelines including the following features:
- 3 cycles for the Static line, 11 points of measure with increasing and decreasing pressure and uncertainty calculation;
- 3 cycles for the Pitot line, 11 points of measure with increasing and decreasing pressure and uncertainty calculation;
- No cycle for AoA line (even if available);
- Calibration covering measured range between 14 hPa and 3500 hPa;
- Uncertainty calculation performed;
- Uncertainty of the reference instrument:
- 50 ppm + 4,4 Pa (k=2) for a measured range between 14 hPa and 1300 hPa;
- 75 ppm + 5 Pa (k=2) for a measured range between 1300 hPa and 3500 hPa.
With the ISO 17025 Calibration Procedure you can request the Statement of Conformity of the measurements.
Note: Upon reception of returned units, initial inspection, functional check and basic testing are always performed as standard.
Note: In our accredited calibration laboratory no. 00145 only Accredited Calibrations are performed.
Note: on 30 September 2025, D. Marchiori Accredited Calibration Laboratory changed its Accreditation Number from “LAT 106” to “00145 LAT”.
