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Dwyer GFC-2109 | Gas Mass Flow Controller | 0-5 L/min N2, 1/4" compression
With a full scale of 0-5 L/min (nitrogen at 21°C, 760 mm Hg equivalent) and a 1/4" compression fitting, the Dwyer GFC-2109 is a gas mass flow controller. Inside the GFC-2109, a restrictor flow element works with a straight-tube sensor, and the unit returns linear 0-5 VDC and 4-20 mA signals.
- Wetted parts of the GFC-2109: 316 SS with fluoroelastomer O-rings
- Operates at 0 to 50°C from ±12 VDC (GFC-2109)
- GFC-2109 accuracy ±1% FS (5 to 25°C, 5 to 60 psia), repeatability ±0.25% FS
- Response of the GFC-2109: 2 s to within ±2% of actual flow, shown on a tiltable 3-1/2 digit LCD
- GFC-2109 pressure limit: 1000 psig (68.9 bar)
- Specifications
- Features
- Downloads
| Part Number | GFC-2109 |
| Brand | Dwyer |
| Flow Range | 0-5 L/min |
| Reference Conditions | Nitrogen equivalent at 70°F (21°C), 760 mm Hg |
| Process Connection | 1/4" compression fitting |
| Accuracy | ±1% FS including linearity |
| Repeatability | ±0.25% FS |
| Response Time | 2 s to within ±2% of actual flow |
| Output | Linear 0-5 VDC and 4-20 mA |
| Power Supply | ±12 VDC |
| Display | 3-1/2 digit LCD, 90° tiltable |
| Wetted Materials | 316 SS with fluoroelastomer O-rings |
| Max Operating Pressure | 1000 psig (68.9 bar) |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
- Delivers excellent repeatability and precision.
- Temperature and pressure changes almost never have an impact on flow rates.
- Uses PID electronics and an electromagnetic valve to compare measured sensor signal set to flow rates in order to maintain continuous control.
- Local potentiometers or an analog signal with a voltage between 0 and 5 VDC or 4 and 20 mA can be used to remotely alter set points.
- Measured gas flow is shown on a 3-1/2 digit, 90° tiltable LCD readout in engineering units.
- When totalization is needed, it can be utilized in conjunction with the Series GFT2 Flow Totalizer.
- Includes a traceable NIST certificate.
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