Thermal Mass Flow
FC-633Digital Differential-pressure Mass Flow Meter / Controller
The FC-633 is a differential-pressure gas mass flow platform offered as a meter or controller. It combines low drift, adjustable range and simultaneous flow, pressure and temperature indication for industrial and laboratory gas systems.

Technical overview
Published configuration data
Values below describe catalog or typical configurations. The confirmed quotation and model code define the supplied specification.
- Range
- 100 SCCM-3000 SLM
- Accuracy
- ±1% F.S.
- Repeatability
- ±1% F.S.
- Response
- 200 ms adjustable
- Pressure
- Up to 1 MPa
- Digital output
- RS485 / Profibus
Key characteristics
Why engineers consider FC-633
- Meter and controller versions
- Low zero and full-scale drift
- Adjustable range
- No preheating required
Typical applications
Where it fits
- 01Industrial gas control
- 02Test benches
- 03Gas supply panels
- 04Research systems
Selection checklist
Confirm these conditions before ordering.
Sending this information helps CurioSens verify the measurement principle, materials, range and interface.
- 01Process medium and composition
- 02Minimum, normal and maximum flow
- 03Operating pressure and temperature
- 04Pipe or tube size and process connection
- 05Required accuracy and response time
- 06Output, power supply and communication interface
Engineer-reviewed FAQ
Questions about FC-633
Application answers reviewed for compatibility, selection, installation and maintenance.
What information is needed to configure the FC-633?+
Provide the medium, complete operating range, pressure, temperature, connection, output and installation conditions. Flow range, gas properties and controller valve orientation must be confirmed for the final configuration.
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