Direct Mass Flow Measurement for Gases
The SensyMaster FMT200 uses thermal mass flow measurement technology to directly measure the mass flow of gases. This avoids the need to calculate mass flow from separate pressure and temperature measurements under standard conditions.
The series is designed for precise and dynamic gas-flow measurement, making it suitable for OEM equipment as well as industrial systems where reliable gas flow information is required.
FMT230 and FMT250 for Different Applications
The FMT200 family includes two main versions. The FMT230 is positioned by ABB as a cost-effective solution for standard OEM applications, while the FMT250 adds higher accuracy and extended functionality for more advanced applications.
The FMT250 can provide additional functions such as process gas calibration, extended measuring ranges, high-temperature measurement up to 300°C, filling application software and an expanded ApplicationSelector with up to eight applications. These functions depend on the selected FMT250 configuration.
High-Grade Thermal Sensor Technology
The SensyMaster uses high-grade thermal sensor elements designed for long-term stability. The sensor protection frame also provides flow-conditioning properties, helping maintain the intended measurement conditions around the thermal sensor elements.
SmartSensor Concept
The FMT200 follows ABB's SmartSensor concept, with measurement intelligence located at the sensor and a digital signal architecture. This design can reduce wiring requirements and allows long cable distances using industry-standard connection cables.
Flexible Application Configuration
The built-in ApplicationSelector allows application parameters to be adapted on site. Depending on the model, users can select between multiple applications, with the FMT230 supporting up to two applications and the FMT250 supporting up to eight applications. The FMT250 can also create new applications without requiring recalibration under the supported configuration.
Built-In Verification and Diagnostics
The VeriMass function provides fingerprint-based SensorCheck functionality for verifying the integrity of the thermal sensor elements. The system also supports continuous meter health checks and parameter plausibility checks, providing additional tools for instrument verification and maintenance.
Flexible Pipe Component Options
The SensyMaster FMT200 can be adapted to different pipe installations through several pipe component designs. ABB specifies partial measuring sections from DN25 to DN100, wafer-type pipe components from DN40 to DN200, and weld-on adapters from DN100 to DN3000.
Key Features
- Product type: Thermal mass flowmeter
- Manufacturer: ABB
- Designed for direct mass flow measurement of gases
- SensyMaster FMT200 series includes FMT230 and FMT250
- High-grade thermal sensor elements with long-term stability
- SmartSensor digital measurement concept
- MODBUS communication interface
- Dynamic temperature compensation
- SensorApplicationMemory for electronics replacement and redundant data storage
- VeriMass onboard verification and diagnostics
- ApplicationSelector for application-specific configuration
- FMT230 supports up to 2 applications
- FMT250 supports up to 8 applications
- Process temperature up to 150°C for the general FMT200 specification
- FMT250 option for medium temperatures up to 300°C
- Integral-mount transmitter design
- 24 V DC ±20% power supply
- Pipe component options from DN25 to DN3000, depending on design
Typical Applications
Compressed Air Measurement
The FMT200 can be used for measuring compressed-air flow in industrial systems, equipment and OEM machinery where direct gas mass-flow measurement is required.
Industrial Gas Monitoring
The flowmeter can measure gases such as nitrogen, oxygen, carbon dioxide, methane, hydrogen, natural gas, biogas, helium and argon, with additional gas types available depending on application requirements.
OEM Equipment
The FMT230 is specifically positioned by ABB for OEM applications. Its preconfigured design allows it to be integrated into equipment where a compact and application-specific gas flow measurement solution is required.
Advanced Gas Flow Measurement
The FMT250 is intended for advanced OEM applications requiring additional functions such as higher accuracy calibration, process gas calibration, extended measuring ranges and expanded application configuration.
Natural Gas and Biogas Measurement
The FMT200 supports gases including natural gas and biogas, making it applicable to gas-flow monitoring systems where direct mass flow measurement is required.
Gas Supply and Process Systems
The flowmeter can be integrated into gas distribution and process systems to monitor gas consumption, process flow or equipment operation, depending on the selected measuring range, gas type and installation configuration.
FAQ
What is the ABB SensyMaster FMT200?
The ABB SensyMaster FMT200 is a thermal mass flowmeter series for direct mass flow measurement of gases. The series includes the FMT230 and FMT250 models, which are designed for different levels of OEM and advanced application requirements.
What gases can the FMT200 measure?
ABB lists air, nitrogen, oxygen, carbon dioxide, methane, hydrogen, natural gas, biogas, helium, argon, propane, ethane, ethene, butane and ammonia among the supported gases. Other gas types can be available on request depending on the application.
What is the difference between FMT230 and FMT250?
The FMT230 is positioned for standard OEM applications, while the FMT250 provides higher accuracy and additional functions for advanced applications. FMT250 options include process gas calibration, extended measuring range, high-temperature measurement up to 300°C and an ApplicationSelector supporting up to eight applications.
What is the measuring accuracy of the FMT200?
Accuracy depends on the model and measuring conditions. For air under reference conditions, ABB specifies ±1.2% of rate within 10–100% of measuring range for the FMT230. The FMT250 is specified at ±0.6% of rate ±0.05% full scale for air under reference conditions.
What is the process temperature range?
The general FMT200 specification lists a measuring medium temperature of -25 to +150°C. The FMT250 has an optional high-temperature function for measuring medium temperatures up to 300°C. The actual temperature capability depends on the selected configuration.
Does the FMT200 require separate pressure and temperature compensation?
The thermal mass measurement principle directly measures gas mass flow. ABB documentation states that standard-density or normal-volume flow can be displayed without additional pressure and temperature compensation under the applicable measurement conditions.
What communication interface does the FMT200 use?
The SensyMaster FMT200 uses a MODBUS communication interface as part of its digital SmartSensor concept.
What pipe sizes are available?
The FMT200 can be installed using different pipe component designs. ABB lists partial measuring sections from DN25 to DN100, wafer designs from DN40 to DN200, and weld-on adapters from DN100 to DN3000. The applicable size depends on the selected installation arrangement.
What is VeriMass?
VeriMass is ABB's onboard verification and diagnostic function. It uses fingerprint-based SensorCheck functionality to verify the integrity of the thermal sensor elements and also provides meter health and parameter plausibility checks.
Is the FMT200 suitable for OEM applications?
Yes. ABB specifically positions the FMT230 for OEM applications, while the FMT250 is intended for more advanced OEM applications requiring additional functionality.
