Portable Flue Gas Analyzer
Agasthya 2026 Series
BI Flexi Pro
The BI FLEXI PRO Flue Gas Analyzer from Bhoomi Instruments is developed for portable measurement and analysis of combustion and stack gases across industrial applications. The analyzer can be configured with different gas-sensing technologies according to the gases, measurement ranges and process conditions required for an application.
Available measurement technologies include NDIR for CO and CO2, Electrochemical sensors for O2, CO, NO, NO2 and SO2, and Paramagnetic or Zirconia technology for O2 measurement. The exact gas combination depends on the selected analyzer configuration.
In addition to gas measurement, BI FLEXI PRO supports combustion-analysis functions including efficiency calculation, losses analysis, excess-air measurement, poison-index monitoring, temperature measurement, pressure monitoring, velocity and flow-rate measurement, and derived CO2 and NOx values. The system also supports 24 common fuels with four additional programmable units.
For field use and data handling, the analyzer incorporates a rechargeable Li-ion battery, high-efficiency sampling pump, gas probe with thermocouple and condensate trap, filtration, flow regulation and USB, Wi-Fi and Bluetooth communication.
- Up to 7-gas measurement capability for configurable multi-gas flue gas analysis.
- Multiple sensing technologies including Electrochemical, NDIR, Paramagnetic and Zirconia.
- Rugged portable analyzer design for field and industrial measurement requirements.
- Flow sensor for flow regulation to support controlled sample-gas handling.
- Automatic compensation capability incorporated into the analyzer platform.
- Rechargeable Li-ion battery for portable operation.
- High-efficiency sampling pump for extracting flue gas samples from the measurement point.
- Gas probe with thermocouple and condensate trap for combined gas sampling and temperature measurement.
- Borosilicate filtration rated at 0.1 micron together with moisture and dust filtration.
- USB, Wi-Fi and Bluetooth communication for data transfer and external connectivity.
- Large data-storage capability, supporting up to 500,000 datasets using an SD card.
- Automatic logging and averaging of measured gas values.
- Combustion efficiency and loss calculations for boiler and furnace performance assessment.
- Temperature, pressure, velocity and flow-rate measurement capabilities, depending on selected probes and configuration.
- Optional Peltier cooler and peristaltic pump for automatic condensate removal from the sample stream.
- Parameter
- Resolution
- Accuracy
- Range
- Code
- Process Parameters
- Flue Gas Temperature
- 0.1°C
- ± 2.0°C
- 0–600°C – With SS Probe;
0–1200°C – With Inconel - 600
1200
- Pressure
- 0.1 mbar
- ± 2% of FS
- ± 150 mbar
- P
- Velocity
- 0.1 m/s
- ± 2% of FS
- 0–50 m/s
- Gas Measurement – NDIR
- Carbon Monoxide (CO)
- 0.01%
- ± 5% of FS
- 0–10%
- 1
- Carbon Dioxide (CO2)
- 0.1%
- ± 1% of FS
- 0–20%
- 2
- Gas Measurement – Electrochemical Technology
- Oxygen (O2)
- 0.1%
- ± 2% of FS
- 0–25%
- 3
- Carbon Monoxide (CO) (H2 Compensated)
- 1 ppm
- ± 20 ppm < 500 ppm;
± 5% of FS > 500 ppm - 0–10000 ppm
- 4
- Carbon Monoxide (CO)
- 0.01%
- ± 5% of FS
- 0–10%
- 5
- Nitric Oxide (NO)
- 1 ppm
- ± 5 ppm < 100 ppm;
± 5% of FS > 100 ppm - 0–5000 ppm
- 6
- Nitric Oxide (NO)
- 1 ppm
- ± 2 ppm < 30 ppm;
± 5 ppm > 30 ppm - 0–500 ppm
- 7
- Nitrogen Dioxide (NO2)
- 1 ppm
- ± 5% of FS
- 0–1000 ppm
- 8
- Sulphur Dioxide (SO2)
- 1 ppm
- ± 5 ppm < 100 ppm;
± 5% of FS - 0–5000 ppm
- 9
- Gas Measurement – Paramagnetic
- Oxygen (O2)
- 0.01%
- ± 1% of reading
- 0–25%, 0–100%
- 10
- Gas Measurement – Zirconia (With Insulated Chambers)
- Oxygen (O2)
- 0.01%
- ± 1% of FSD
- 0–25%
- 11
- Calculated Values
- Carbon Dioxide (CO2)
- 0.1%
- ± 0.3% of FS
- 0–20%
- Efficiency
- 0.1%
- ± 1% of FS
- 0–120%
- Losses
- 0.1%
- ± 1% of FS
- 0–99.99%
- Excess Air
- 0.1%
- ± 0.2%
- 0–2885%
- CO/CO2 Ratio
- 0.01%
- ± 0.01%
- 0–0.99%
- Poison Index
- 0.01%
- ± 0.01%
- 0–99.99%
- Boiler & Furnace Flue Gas Analysis
- Industrial Emission Monitoring
- Stack Gas Measurement
- Combustion Optimization
- Environmental Compliance Testing
- Process Industry Monitoring
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