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  • Detects: H2, O2, N2, Ar, He, CO2
  • 0-95% RH non-condensing relative humidity
  • 2000m max altitude
  • Signal outputs/inputs
    • 1 x 4-20 mA output per peak, up to 8 outputs
    • 1 x remote range identification output per peak, up to 8
    • 2 x alarm dry contact outputs, user pre-settable limited
    • 1 x system status dry contact output
    • 1 x digital isolated input - remote initiation of analysis
  • Patented PED sensing technology


The Servomex SERVOPRO chroma trace gas analyzer uses ultra-sensitive and highly selective patented PED sensing technology, delivering the highest reliability and performance currently available. Most applications will be satisfied by a single 4U rack analyzer configuration, making the Chroma a compact, cost-effective solution for continuous process control or quality monitoring.

Applications that depend on the very highest levels of product purity depend on trace analysis of exceptional sensitivity and performance. Impurities requiring measurement are both diverse in nature and found in a number of background gas streams, so high flexibility is also a must. Measurements need to be reliable, so a technology that can provide stability is essential. No matter what your application monitoring requirements, you'll also want a solution that is easy to use and has a low lifetime cost-of-ownership. We don't believe you should have to compromise.

The Chroma's flexible ultra-trace analysis is delivered through a smart combination of cutting-edge sensing technology and intelligent control software. Benefiting from the fast, accurate, sensitive and selective response of Servomex's non-depleting Plasma Emission Detector (PED) cell, Flame Ionization Detector (FID) or Thermal Conductivity (TCD) technologies, the Chroma offers sophisticated configuration and performance options which are far ahead of the competition.