Calibration & Audit

Permen LHK No. 13 of 2021 refers to CEMS calibration and audits using the CGA, RCA, and RATA methods. During these activities, the Data Interfacing System (DIS) keeps sending data with a defined marker value (Article 9 paragraph 2), and the activity is reported through SIMPEL within 2 × 24 hours (Article 10). That is why calibration and audits need to be planned, not done at short notice.

Zero and span

Routine checks of the analyzer response at the zero and span points, to detect drift early.

CGA (Cylinder Gas Audit)

Gas analyzers are tested with certified standard gases at several concentration levels to confirm their response is still correct.

RCA (Response Correlation Audit)

For particulate monitors. Monitor readings are correlated with manual measurements across the operating range, so the validity of dust measurement is maintained.

RATA (Relative Accuracy Test Audit)

CEMS data is compared with results from a reference method run at the same time on the stack.

We support the preparation, execution, and documentation of the results. Where a test requires a specific testing party, the role of each party is made clear from the start.