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D-FL 100
Differential Pressure Flue Gas Flow Monitor
The D‑FL 100 is a differential pressure flue gas flow measuring system designed for continuous in-situ measurement of gas velocity, volume flow and temperature in industrial stacks and ducts. Its flexible single-sided or double-sided installation concept and application-specific probe design ensure reliable flow measurement in hot, aggressive and challenging process environments. Certified for regulatory emissions monitoring, the system is suitable for flue gas temperatures up to 850 °C and is also available in versions for hazardous area applications.
Technology: Differential pressure principle (Averaging Pitot)
Benefits
- Suitable for regulatory emission monitoring
The D‑FL 100 continuously measures flue gas velocity, volume flow and temperature, providing the process data required for compliant emissions monitoring. Combined with gas and particulate analyzers, it enables accurate mass emissions calculations and environmental reporting. - Flexible single-sided or double-sided installation
The D‑FL 100 can be configured for either cost-effective single-sided installation or double-sided installation across the full duct diameter. This flexibility simplifies installation and allows adaptation to virtually any stack or duct configuration. - Designed for hot and demanding process conditions
Based on the proven differential pressure measuring principle, the D‑FL 100 delivers reliable flow measurement in challenging industrial applications. Optional probe versions allow operation in flue gas temperatures up to 850 °C. - Application-specific probe design for optimum performance
The measuring probe can be individually adapted to the application, providing a tailored solution for different duct diameters, gas conditions and installation requirements. This ensures reliable operation across a wide range of industrial processes. - Reliable operation in aggressive flue gases
Robust probe materials are available for use in aggressive process gases and harsh operating environments. The system is designed for long-term reliability in applications where standard flow measuring technologies may be challenged. - Reduced maintenance and high operational availability
An integrated automatic self-test continuously verifies system performance, while the optional automatic back-purging unit helps prevent contamination of the measuring probe. This minimizes maintenance requirements and maximizes system availability. - Suitable for hazardous area applications
Optional versions are available for installation in potentially explosive atmospheres, extending the range of applications beyond conventional emissions monitoring installations
COMPLIANCE & CERTIFICATIONS
- QAL1 certified by TÜV and MCERTS according to EN 14181, enabling QAL2 and QAL3 quality assurance procedures
- Tested in accordance with EN 15267-1, EN 15267-2 and EN 15267-3 for continuous measurement of flue gas velocity and volume flow.
- Compliant with EN ISO 16911-2 for the automated determination of waste gas velocity and volume flow rate in ducts and stacks.
- Compliant with German regulations (13th, 17th, 27th, 30th BImSchV, TA Luft)
- Approved for installations covered by the Industrial Emissions Directive (IED 2010/75/EU) and other European regulations requiring Continuous Emissions Monitoring Systems (CEMS).
- Available with ATEX approval for operation in potentially explosive atmospheres.
Applications
Accurate flue gas flow measurement is essential for reliable emissions monitoring and efficient process control. The D‑FL 100 provides continuous measurement of flue gas velocity, volume flow and temperature, delivering the data required for mass emissions calculations, regulatory compliance and process optimization. Its flexible installation concept, application-specific probe design and suitability for hot, aggressive and hazardous environments make it an ideal solution for a wide range of industrial applications.
- Continuous emissions monitoring in dry, hot and aggressive flue gases
- Emissions monitoring in small to very large ducts and stacks
- Applications requiring single-sided or double-sided installation
- Combustion plants, waste incineration plants, cement kilns, industrial boilers, oil and gas...
- Hazardous area applications (ATEX)
- High-temperature processes up to 850 °C
- Volume flow measurement for process control and process optimization
- New installations and retrofit projects with challenging installation conditions
Technical Data
- Technical data
- Explosion protection
- System components
| Measuring principle | Differential pressure measuring principle, in-situ measurement, continuous measurement, single-sided or double-sided installation |
|---|---|
| Measuring variable | Differential pressure, velocity, volume flow, volume flow (standardized), temperature, pressure |
| Measuring range | Velocity: 3 … 50 m/sVolume flow: 0 … 3,000,000 m³/h |
| Certified measuring range | 3 … 30 m/s (certification range), 3 … 50 m/s (additional range) |
| Ambient conditions | Ambient temperature:-40 … +50 °C (certified)-40 … +60 °C (optional) |
| Operating conditions | In duct:Temperature: Maximum 850 °C (higher temperatures available on request)Relative humidity: 0 … 95%, non-condensingRelative pressure: -50 … +50 hPaDust concentration: Maximum 30 / 100 / 150 mg/m³, depending on probe version |
| Dimensions | Inner duct diameter: 0.4 … 9 mWall thickness: Maximum 300 / 800 / 1,300 mm, depending on probe version |
| Interfaces | Analogue output: 1x 4 … 20 mA, maximum 400 Ohm, potential-freeDigital output: 2x NC/NO, maximum 60 VDC, 30 VAC, 0.5 A Modbus RS 485 RTU, USB |
| Operation and display | Software D-ESI 100, operating unit D-ISC 100 (optional), status LED (optional) |
| Check functions | Automatic internal self-test |
| Nominal voltage | 24 VDC |
| Degree of protection | Evaluation unit: IP65 (version in housing) / IP20 (version as top-hat rail module)Differential pressure sensor: IP67 |
| D-FL 100-20 | II 2 GD Ex d IIC T5 Gb Ex tb T100°C Db (optional) |
|---|---|
| Differential pressure sensor | II 1/2 G Ex ia IIC T6 … T4 Ga/Gb (optional) |
| Probe D-FL 100 with accessories | |
|---|---|
| Differential pressure sensor D-FL 100 DDM | |
| Evaluation unit D-FL 100-20 | |
| Pressure sensor D-FL 100 ADM (optional) | |
| Temperature sensor D-XT (optional) | |
| Software D-ESI 100* or Operating unit D-ISC 100** | |
| Weather protection (optional for outdoor installation) | |
| Automatic back purging unit (optional) |
* Enables remote access via web interface, PC with Windows operating system required
** Additional interfaces with D-ISC 100 operating unit
Accessories
- Mandatory
- Recommended
| D-ESI 100 |
| D-ISC 100 xx2 |