MultiExact 4100

A high-performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements




Sensing Technology


The SERVOPRO MultiExact 4100 is a high- performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements including: O(trace, control, and purity), CO2, CO (% and trace), N2O, CH(trace), Ar in O2, Nin Ar, Oor air, and He in Ar, Oor N2.

Specifically designed to address the needs of industrial and medical gas manufacturers, the MultiExact 4100 can be fitted with a wide range of sensing technologies – Paramagnetic, Zirconia, Gas Filter Correlation Infrared (GFx), single-beam Infrared (SBSW), Aluminum Oxide, and Thermal Conductivity (TCD).

These proven, digital sensors not only provide highly accurate measurements but also offer operational flexibility in a range of industries and applications. The non-depleting, high-stability sensing technologies help extend maintenance intervals while intelligent functionality such as independent auto-calibration helps to deliver operational efficiencies over a long product life.

Using the same reliable measurement technology as the SERVOPRO 4100 and MultiExact 5400, the new MultiExact 4100 is backward-compatible with existing installations, providing trusted gas analysis while offering the advanced digital communications that many modern systems require.

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  • Product purity on air separation plant
  • Process control on air separation plant 
  • Bottling/filling plant applications 
  • Monitor trace CO2 on scrubbed air inlet to air separation process
  • Validation of medical O2, N2, air and He



Ensure your MultiExact 4100 delivers optimum performance with Servomex Service Network.

Through our global network of engineers and service centers, we provide complete lifetime support for your analyzer. Our services range from installation and commissioning to supplying high quality spares and arranging scheduled servicing: visit our Service Network pages to find out more.