CEMS Service · Malaysia

CEMS maintenance

A CEMS that drifts, fails or goes offline doesn't just cost you data — it puts your compliance at risk. Mesra keeps your system accurate and available with structured preventive maintenance, drift monitoring and responsive support, so the data reaching the Department of Environment is one thing you never have to worry about.

Compliance depends on uptime

Under the Clean Air Regulations, your obligation is continuous — emission data has to reach the regulator every hour, all year. Gaps and faults don't pause that requirement. A maintained system protects your data availability, your calibration validity, and your inspection record at the same time.

What a maintenance contract includes

  • Scheduled preventive servicing of analysers, sampling systems and the data acquisition platform.
  • QAL3 drift checks — zero and span — plotted on control charts to catch faults early.
  • Supply of genuine spares and consumables suited to your system.
  • Fault diagnosis and corrective maintenance, on-site and on-call.
  • Support through your AST and re-calibration when due.
  • Maintenance records kept the way DOE inspections expect.
QAL3 drift control chart A control chart of zero and span drift over successive checks. Drift trends upward toward the action limit, is caught early, and a corrective action returns the system to near-zero drift before any compliance breach. +4 +2 0 −2 −4 Action limit Warning limit Zero / span drift (%) QAL3 drift checks over time corrective action drift caught early QAL3: catch drift before it becomes a breach
Routine zero/span drift checks plotted on a control chart reveal a developing fault while it is still inside the limits — so you act before an exceedance, not after.

The single accountable partner

Because Mesra also designs, installs and certifies CEMS, the team maintaining your system already understands it end to end. There is no finger-pointing between an installer, a calibration body and a service contractor — we own the outcome until the system performs. That accountability is the difference between a maintenance contract and a genuine compliance partnership.

15+ years, one focus

CEMS is all we do. Over 15 years of uninterrupted specialisation and more than 200 facilities monitored nationwide mean your system is supported by people who work on these analysers every week — across palm oil, energy, cement and manufacturing plants.

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