CEM Solutions were approached to assess the possibility of taking over a third-party emissions monitoring system at a site in central London.
The system had been provided as part of a larger abatement project and the ongoing support for the analyser was not adequate. Having suffered some loss in confidence in the system, the client looked to the domestic market for a support partner and made contact with us.
Our team conducted a comprehensive site survey, performed a thorough inspection of the CEMS and critically reviewed the technical documentation to understand how the system control had been configured. The system has an interlock with the plant and this, in particular, was causing confusion and operational challenges. We tested the logic and found a faulty relay which had confused matters further! We then documented all system components to ensure spares parts were readily available for any future issues.
Modifications & Improvements
During our review of the CEMS system, we discovered that the heated sample probe was not correctly wired-up (cold). To address this issue, we installed a cable to power the probe and ensure its proper heating. This measure alone has prevented flue gas condensing within the probe which had been causing blockages and significant contamination issues, significantly improving reliability.
Furthermore, we identified several small leaks along the gas path. Our team performed a thorough service of the system, replacing all consumable parts and addressing any fittings or components that were beyond servicing. We also replaced all contaminated piping within the panel to restore the system’s integrity. We conducted a thorough calibration on the system, using traceable audit gas for the zero and span calibrations. With some adjustments and fine-tuning, we achieved reliable readings from the system.
On-going Service Support
We have established a service contract with the site, which includes routine scheduled visits, along with 24/7 phone support. Our dedicated team ensures the ongoing health and optimal performance of the system during these scheduled maintenance visits.
By addressing these critical issues and performing necessary maintenance tasks and calibration, we successfully enhanced the reliability and performance of the CEMS system, minimising unplanned shutdowns and improving overall operational efficiency for the site.
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