The COSA XENTAUR™ 9800 CXi™ is an advanced online BTU analyzer and zero-hydrocarbon emissions calorimeter designed for continuous measurement of Heating Value (BTU), Calorific Value, Wobbe Index, and Combustion Air Requirement Index (CARI) in flare gas, refinery fuel gas, natural gas, hydrogen blends, LNG, renewable natural gas (RNG), and petrochemical process streams.
Unlike traditional flame calorimeters, the 9800 CXi uses an innovative injection-style measurement principle with a 1000°C flameless combustion furnace, delivering rapid, highly accurate measurements while returning most of the sample gas to the process. This significantly reduces hydrocarbon emissions and makes the analyzer ideal for modern flare gas monitoring and environmental compliance applications. Contact us for more information.
ADVANTAGES
- BTU without the need for a Specific Gravity
- Direct Measurement of Calorific Value
- Furnace at 1000°C for complete combustion
- Wall mounted small footprint
- Industrial PLC System, touchscreen HMI
- High temperature combustion
- Flameless / no flameouts
- Built for indoor, outdoor, dirty, and corrosive environments
- Precise measurement of air fuel ratio
- Cost-effective, and for ease of maintenance and service
- Internal sample system up to 50°C with options to 100°C
- Full measurement range of the heating value without the need of a specific gravity meter
Why Monitor Heating Value & Wobbe Index?
Fuel gas composition changes continuously.
Those changes affect:
- Burner performance
- Flare efficiency
- Steam production
- Furnace temperature
- Turbine efficiency
- Emissions
- Fuel costs
- Process safety
- Product quality
Continuous online measurement enables operators to adjust combustion conditions immediately instead of relying on delayed laboratory analysis.
Why Choose the 9800 CXi?
The 9800 CXi was specifically engineered for harsh fuel gas and flare gas applications where conventional calorimeters often struggle.
Key Benefits
- Direct Heating Value (BTU) measurement
- Continuous Wobbe Index calculation
- Continuous CARI measurement
- Zero hydrocarbon emissions design
- Injection-style measurement technology
- No external pilot flame
- No flameouts
- High-temperature 1000°C combustion
- Handles high sulfur process gases
- Optional integrated hydrogen measurement
- Industrial PLC with touchscreen HMI
- Small footprint
- Indoor or outdoor installation
- Low maintenance requirements
- Fast analytical response
What Does the 9800 CXi Measure?
The analyzer continuously measures:
- Heating Value (BTU)
- Gross Heating Value (HHV)
- Net Heating Value (LHV)
- Wobbe Index
- CARI
- Optional Specific Gravity
- Optional Hydrogen (H₂)
This provides comprehensive fuel quality information for combustion optimization and emissions reduction.
BENEFITS
Benefits of the 9800 CXi injection-style zero-hydrocarbon emissions calorimeter include:
- Hydrogen Measurement fully integrated into analyzer including power and communications.
- Hydrogen Measurement (optional) – Range up to 0-100%
- High Accuracy: Provides highly accurate results for measuring the calorific value of fuels, with a precision of +/-1% full scale.
- Fast Response Time: Has a fast response time, making it suitable for monitoring and control of flares.
- Low Sample Volume: Requires a small sample volume, which reduces the amount of sample required for measurement.
- Wide Measurement Range: Has a wide measurement range, which makes it suitable for measuring the heating value of various gaseous samples.
- Easy to Operate: Is easy to operate, with a user-friendly interface and intuitive controls.
- Durable: Made of high-quality materials and is designed for durability and long-term use.
- Measures low heating value gases.
- Low maintenance
- Flameless / no flameouts
- Measures Heating Vales, Wobbe, CARI and Specific Gravity with Optional SG Cell.
- EPA 40CFR63.670(j) Compliant
- Direct Measurement Method (ASTM D-4891 Compliant)
- Gross (HHV/higher heating value) or net (LHV/lower heating value)
- Small footprint
- US – Canada / Class 1 Div 2 Groups B, C, D T3
- ATEX / Ex Ib px IIC T3 Gb Ta
SALES | TRAINING INQUIRIES
AMERICAS: info.americas@process-insights.com
EMEAI (includes India): info.emeai@process-insights.com
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CHINA: info.cn@process-insights.com
