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Rosemount™ CT5100 Continuous Gas Analyzer
rosemount ct5100
Emerson's Rosemount CT5100 continuous gas analyzer is the first Quantum Cascade Laser (QCL) system developed for process gas analysis and emissions monitoring.
The CT5100 is available in two variants: a certified system, housed in a purged and pressurized enclosure for hazardous area installations (illustrated); and a non-certified system for use in nonhazardous areas. Both can house up to six lasers to measure multiple components in the gas stream simultaneously. The laser arrangement consolidates the measurement requirements into a single gas analyzer.
Rosemount™ CT5100 Continuous Gas Analyzer


Communication Protocol
Outlet gas port connector: 6 mm (¼ in) Swagelok type (specify on order) • Purge connector: Purge inlet (certified system only) 10 mm (⅜ in)
Europe: ATEX II 3G Ex p Group IIC T3 • North America: Class 1, Division 2, Groups A,B,C,D T3
575 x 291 x 781 mm (23 x 11-1/2 x 31 in)
53 kg (116.8 lbs)
Power Supply
110 VAC 60 Hz / 240 VAC 50 Hz
R2 > 0.999


  • Measure up to twelve gases simultaneously
  • Accurate and sensitive gas measurements
  • Excellent linearity of response and repeatability
  • Low, long term drift, minimizes calibration intervals
  • Low maintenance and low lifetime costs
  • Continuous health diagnostic reporting
  • Embedded ARM processor for fully autonomous operation
  • Intuitive, simple front panel user interface allows access to all instrument functions
  • Interchangeable modular configuration for up to six lasers
  • Hazardous certification (approvals pending): Europe: ATEX II 3G Ex p IIC T3; North America: Class I, Division 2, groups A, B,C,D, T3