CY231FC Differential Pressure Mass Flow Controller
Summary:
The CY231FC series flow controllers operate on the differential-pressure principle, calculating flow rate by measuring the pressure difference generated as fluid passes through a throttling element. The product features built-in PID control and is designed for use with solenoid proportional control valves to achieve precise flow regulation. As fluid flows through the pipeline and past the throttling element, its velocity increases while static pressure decreases, creating a pressure differential across the element. A sensor measures this differential pressure, converts it into an electrical signal, and outputs the signal. The controller then processes the output differential-pressure signal using the flow equation (the Hagen–Poiseuille equation) to determine the fluid flow rate. The CY231FC can measure multiple parameters, including gas mass flow, volumetric flow, pressure, and temperature, and transmits these parameters via communication interfaces such as RS485 and RS232 to a touch screen or other external devices and control systems for display, facilitating data monitoring and analysis.
Keywords:
The CY231FC series flow controllers operate on the differential-pressure principle, calculating flow rate by measuring the pressure difference generated as fluid passes through a throttling element. The product features built-in PID control and is designed for use with solenoid proportional control valves to achieve precise flow regulation. As fluid flows through the pipeline and past the throttling element, its velocity increases while static pressure decreases, creating a pressure differential across the element. A sensor measures this differential pressure, converts it into an electrical signal, and outputs the signal. The controller then processes the output differential-pressure signal using the flow equation (the Hagen–Poiseuille equation) to determine the fluid flow rate. The CY231FC can measure multiple parameters, including gas mass flow, volumetric flow, pressure, and temperature, and transmits these parameters via communication interfaces such as RS485 and RS232 to a touch screen or other external devices and control systems for display, facilitating data monitoring and analysis.
Detailed introduction
Product Features
- No “specific heat capacity” error; high-precision data with real-time feedback
- Employs a DSP-based main controller to further enhance precision and reliability.
- Compact design for a more intuitive large-screen experience
- Switch freely among nearly 100 gases—no need to return the instrument to the factory for calibration.
- Supports multi-parameter measurement for convenient data analysis
- Supports USB Type-C and Bluetooth, enabling flexible and versatile device connectivity.
Technical Specifications
Product Name | CY231FC Differential Pressure Type Mass Flow Controller |
Measurement range | 2 SCCM to 3000 SLM |
Valve control range | 50:1 |
Accuracy | ±0.5% of full scale |
Linear | ±0.5% F.S. |
Repeatability | ±0.2% F.S |
Stability | <±0.1%F.S |
Response time | 50mS |
Temperature coefficient | ±0.015% F.S./°C |
Operating temperature | -10℃ to 60℃ |
Work stress | Operating pressure differential: 0.05–0.5 MPa |
Maximum withstand voltage | 1MPa |
Leak rate | 1 × 10 Pa·m/s |
Base material | Stainless steel |
Joint | VCR, ferrule, quick-connect fitting, tower fitting, and flange installation |
Sealing material | Fluororubber, nitrile rubber, perfluoroether, ethylene propylene diene monomer |
Enclosure Protection Rating | IP40 |
Installation Location | Horizontal installation |
Monochrome LED display | Display flow rate and setpoint simultaneously. |
Electrical Connection | DB9 port, RJ11, 5.5×2.1 power quick-connect |
Display Status | With LCD display, without LCD display |
Digital quantity | Modbus protocol (RS232/485), ProfiBus protocol, DeviceNet protocol |
Analog quantity | 0–5 V, 4–20 mA, 1–5 V |
Power supply | ±15 VDC, 24 VDC |
Industry Applications
| Industrial Gas Production | Petroleum and Petrochemical | Photovoltaic industry | Vacuum industry |
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