Global site

ABB's website uses cookies. By staying here you are agreeing to our use of cookies. Learn more

Thermal mass flowmeter
SensyMaster FMT200

The SensyMaster FMT230 offers a high quality and cost effective solution for precise and dynamic direct mass flow measurements of gases in low and medium pressure conditions. The model comes preconfigured for the application, ready to be installed by OEM customers.
The FMT250 adds high accuracy and extended functionality for advanced applications.
SensyMaster’s concept comprises high grade thermal sensor elements with superior long-term stability, the ABB platform based electronics with comprehensive signal evaluation capabilities for a high degree of performance and reliability. The software offers the ApplicationSelector that allows to change application parameters and create new applications on site and VeriMass the fingerprint based thermal sensor element verification function.
Both models communicate via MODBUS Interface and follow the SmartSensor concept.
The SensyMaster FMT230 is ideally suited for all OEM applications, the FMT250 for advanced OEM application.



Precise and dynamic direct mass flow measurement of gases for OEM applications.

  • High-grade thermal sensor elements
    – superior long-term stability
    – effective sensor element protection frame with flow conditioning properties
  • SmartSensor solution
    – Meter intelligence located at the sensor
    – all digital solution
    – reduced wiring costs with industry standard connection cables
    – long cable distances are possible
  • SensorApplicationMemory
    – Plug and play electronics replacement
    – Redundant data storage for maximum data security
  • ABB common electronic concept
    – MODBUS communication interface
    – Multiple 32-bit processor structure
    – full digital heating circuit control
    – dynamic temperature compensation
  • ApplicationSelector
    – Adaption of the characteristic application parameters on site
    – choice between up to two applications (FMT230)
    – choice between up to eight applications (FMT250)
    – setup new applications without the need for recalibration (FMT250)
  • VeriMass onboard verification and diagnostics
    – Fingerprint based SensorCheck to verify the integrity of the thermal sensor elements
    – continuous health check of the meter
    – parameter plausibility check


General specifications:

  • Measuring media
    – Air, Nitrogen, Oxygen, Carbon dioxide, Methane, Hydrogen, Natural Gas, Biogas, Helium, Argon, Propane, Ethane, Ethene, Butane, Ammonia, more gas types on request
  • FMT230 measuring accuracy for air under reference conditions
    – ±1.2 % of rate within 10 … 100 % of measuring range
    – ±0.12 % full scale within 1 … 10 % of the measuring range
  • FMT250 measuring accuracy for air under reference conditions
    – ±0.6 % of rate ±0.05 % full scale
  • FMT250 measuring accuracy for gases under reference conditions
    – with optional process gas calibration 
    – ±1.6 % of rate ±0.1 % full scale
  • Integral mount transmitter design
    – single compartment transmitter housing
  • Measuring medium temperature
    – -25 … 150 °C (-13 … 302 °F)
  • Ambient temperature
    – -20 … 70°C ( -4 … 158°F)
    – optional -40 … 70 °C (-40 … 158 °F)
    – optional -50 … 70 °C (-58 … 158 °F)
  • Supply Voltage
    – 24 V DC ±20 %
  • Process adaption via pipe components in different designs
    – partial measuring sections (DN 25 …DN 100)
    – wafer design pipe components (DN 40 … DN 200)
    – Weld-on adapters (DN 100 … DN 3000)
  • FMT250 added functionality
    – high accuracy calibration
    – process gas calibration 
    – extended Measuring range 
    – high medium temperature up to 300 °C (572 °F) 
    – filling application software
    – ApplicationSelector with up to 8 applications
       …with up to 4 customer set applications
       …with selectable gas type
       …with selectable pipe inner diameter


For selecting the most suitable product for your application 


Loading documents