




Dwyer Instruments GFC-2143 | Gas mass flow controller | Range 0-200 LPM. Specified flow Range is for an equivalent flow of nitrogen at 70°F (21°C) @ 760 mm Hg | 3/8" compression fitting
Gas mass flow controllers such as the Model GFC-2143 combine a restrictor flow element and a straight tube sensor. It comes in diameters 1/4", 3/8", 1/2", and 3/4" and is offered in aluminum or 316 SS for flow rates up to 1000 L/min.

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Accuracy | +/-1% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.34 to 4 bar) Series GFC X143, X144, X145, +/-1.5% FS |
Approvals | CE |
Connection | Process: 3/8" for 100 and 200 L/m |
Display | 90° tiltable, 3-1/2 digit |
Leak Integrity | 1 x 10-9 sccs of He |
Manufacturer | Dwyer Instruments |
Material | Wetted: GFC-2XXX: 316 SS and fluoroelastomer O-rings |
Maximum Operating Pressure | 1000 psig (68.9 bar) Series GFC-X143, X144, X145, 500 psig (34.5 bar) |
Maximum operating temperature | 32 to 122°F (0 to 50°C) |
Maximum Particulate Size | 5 microns |
Output | Linear 0 to 5 VDC and 4 to 20 mA |
Power Supply | +/-12 VDC |
Range | 0-200 LPM. |
Repeatability | +/-0.25% of FS |
Response Time | 2 seconds to within +/-2% of actual flow |
Type | Gas Mass Flow Controller |
- 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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