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Rosemount™ X-STREAM Enhanced XECLD Continuous Gas Analyzer
Rosemount X-STREAM Enhanced XECLD Continuous Gas Analyzer
Purpose-built to detect ultra-low concentrations of NOx emissions in industrial and commercial combustion applications, the Rosemount XECLD Continuous Gas Analyzer uses highly stable, solid-state Chemiluminescence Detection (CLD) technology to help operators prove compliance with environmental regulations.
Designed for optimum reliability and care-free maintenance, the XECLD eliminates vacuum pumps, reducing a source of vibration which can compromise equipment integrity and measurement reliability.
Rosemount™ X-STREAM Enhanced XECLD Continuous Gas Analyzer


Measurement Range
0 - 5 ppm up to 10,000 ppm
Detection Limit
≤ 1% FS
≤ 0.5% FS
≤ 1% FS
Ambient Temperature
Storage: -4 - 158°F (-20 - 70°C); Operation: 41 - 104°F (5 - 40°C). Allow 1 HU (1.75 in./44.5 mm) distance between the analyzer and other equipment in the cabinet.
Analog Input
2 analog inputs: 0-1(10) V (Rin - 100 kΩ) or 4 (0)-20mA (Rin - 50 Ω)
Analog Output
1 or 2, individually and optically isolated; 4 (0)-20 mA (RB ≤ 500 Ω); 1 as standard, 2nd as option; NAMUR NE 43 and NE 44 compliance
Power Supply
100 - 240 V, 50/60 Hz ±10%
Width: 17.32 in. (440 mm); Height: 5.2 in. (132 mm); Depth: 14.55 in. (370 mm) (without bend radius of tubes)
27.12 lb. (12.3 kg)


  • Very wide user-selectable NOx measurement ranges from 0 - 5 ppm up to 10,000 ppm.
  • Ideal not only for NOx emissions monitoring in industrial combustion applications, but also for vehicle emissions and engine testing, as well as purity measurement in medical and food & beverage applications.
  • Thermoelectrically cooled, solid-state detector assembly ensures reliable performance and longer operating lifetime.
  • Integrated web interface allows analyzer configuration and monitoring without the need to install additional software.
  • Advanced diagnostics enhance visibility to analyzer health and process conditions and provide actional information to improve reliability and efficiency.
  • Features a user-friendly and intuitive Local Operator Interface (LOI) to operate the analyzer without the need for a computer or handheld communicators.
  • Designed around U.S. EPA's Method 7E procedure and the European Standard EN 14792:2017 for reliable NOx emissions monitoring.
  • Uses the tried-and-true chemiluminescence detection technology pioneered by Emerson’s Beckman which still reigns as the industry's standard reference method for measuring nitrogen oxides (NOx).