Analyzer Repairs and Upgrades

ESC Spectrum understands that analyzers are integral to your Continuous Emissions Monitoring Systems (CEMS). We offer customized solutions that include parts from major emission monitoring manufacturers and the expertise needed to repair, upgrade and maintain your CEMS analyzers.


All of our locations perform analyzer bench testing included with the purchase of an analyzer. Our process includes a power-up cycle, firmware update, calibration, diagnostic settings check, custom settings programming and troubleshooting as needed.

Analyzer Upgrades

The solutions we offer are rooted in a deep knowledge of air emissions: the maintenance team has decades of experience working on major analyzer brands, including Thermo-Fisher, Siemens, Teledyne API, M&C, Gasmet, Extrel, and more. Visit our Supplier pages to learn about some of our preferred vendor partners. Check our Obsolete Analyzers page to make sure your analyzers have not reached the end of their life cycle.

Analyzer Repair & Calibration

ESC Spectrum operates multiple full depot-level labs with the ability to repair and refurbish most major CEMS analyzers and monitor brands with same-day options available for some services. We perform Elemental Mercury Calibrator certifications in accordance with the Interim EPA Traceability Protocol as well as Neutral Density Filter certifications as required by the EPA’s Part 60 regulations.


Our Calibrator Certification Service compares and tests the Thermo Hg 81i Mercury Calibrator against a NIST traceable vendor prime. We are the only facility besides the manufacturer certified to repair and calibrate these devices.

Woman working on CEMS analyzer
Analyzer Parts Including Thermo Fisher Teledyne M&C

Analyzer Parts

We have an inventory of spare parts, including obsolete, hard-to-order, and third-party items, to support your CEM System analyzers. Overnight shipping is available for in-stock parts. Visit our Supplier pages to learn about some of our preferred vendor partners.

Analyzer Training and Certification Services

Get customized on-the-job training and support via our CEMSProtect Partner program, as well as analyzer repair and maintenance training at our facility.


Our analyzer experts conduct all certification procedures associated with installing a new CEMS, replacing analyzers, recertifying calibrators or making any major changes to your CEMS which prompt certifications.

CEMS Analyzer Training

Request an Analyzer Upgrade or Repair Quote

Click or drag files to this area to upload. You can upload up to 3 files.
Send us a list of your analyzers and we'll provide a quote for spares and/or replacements. We have agreements with suppliers that ensure timely delivery service. Upload your list here, contact us at, or fill out this form and we'll reach out.

Seamless Integration Case Study: Lightstone Energy, LLC

Read our case study to learn how Lightstone Energy, LLC saved over $320k by using ESC Spectrum for analyzer upgrades and annual maintenance.

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